Can a HOLLOW CORE DOOR actually be repaired?

Can it really? Or are all repairs on hollow core doors actually just hacks!!!! Let me know your experience in the comments below!!!
Patreon: www.patreon.com/user?u=109961...

[@paulstaf]

I patched a hollow door one time with bondo. I left the punched in remains in the door and just applied the filler over it, no spray foam. Let it dry and sanded it smooth and it looked perfect and never cracked. It still looked perfect 10 years later when I sold the house.

[@stevenhernandez9963]

Going to try this out !

[@WonboShim]

What did you use for filler? Bondo or spackle?

[@cookingmyway298]

Thanks 🙏, going to give your method a try

[@gen.arnavpoe4633]

Bondo glass/shims/contact glue all day for these repairs...

[@wendyarteaga9859]

This has nothing to do with this video in particular. But I recently started fixing all the holes, dents, and dings in my home. I stumbled upon your channel randomly and I just have to say I sincerely thank you for showing us all of your knowledge and expertise. I seriously love your channel it has helped me so much. You have definitely helped build my confidence with drywall and especially working with compound! I’m definitely not great at repairing drywall but I definitely got so so much better. I especially love that you show your mistakes because it shows that we’re all human and mistakes happen. It helped me to be a lot nicer and easier on myself while repairing drywall. So thank you so much for being so genuine and easy to learn from!

[@uneasyMeat]

I appreciate the quick synopsis at the beginning. Good vid too.

[@bensadventures6321]

I’ve used bondo over spray foam many times. Works great. I usually use the fiberglass bondo on the first coat for strength.

[@christopherm1904]

Recently found your channel when searching for tips on proper mudding techniques with drywall, corners, and paper tape. Been watching more of your content since. Excellent presentation of many of the core concepts needed for a DIYer. Thanks a bunch. Just subscribed. Keep the good content coming.

[@vancouvercarpenter]

Awesome, thank you!

[@gilbertvalentin9614]

If you have used 2 to 3 pieces of thin wood glued to the back then use Bondo or wood filler to the front, I have been doing this for over 40 years and it great

[@TheOldBlackCrow]

That was extremely helpful! I did a repair on a door with the fancy bevels. It was kicked in. I just used spackle and it looks ok, but definitely some cracks are appearing. You got me to want to redo it.

[@FrancisRoyCA]

"Acknowledging that using spray-foam is a hack to fix the door" Thank you very much. Yes. The only way that I know of, for a perfect job to "fix" a hollow-core door is to replace it. Thank you for your refreshing honesty.

[@queens.dee.223]

I'm looking forward to the door replacement video. I had someone ask me for help after they hammered their way through a hollow core door with an exterior doorknob locked in a way they couldn't open. I didn't know what to do -- just a DIYer -- but I'd installed pre-hung doors before, so that was my solution!

[@AMangyCat]

I really appreciate getting to see your testing methods! That helps give a bigger picture as to how everything works. Thank you!

[@steveemanuelli6942]

I did exactly what you said to do and I'm so happy for the results. Thank you!

[@Aepek]

0:44 YEP, THANK YOU, BEST ADVICE AND GLAD SAID IT.😊 ¹ 1:23 when we do hollow core door repairs, at homeowners request (knowing best way is new), like using the grey foam for bugs, it’s a closes cell and low expansion and best thing DOESNT COMPRESS when gets hit constantly. Also, very sticky and sticks great inside the door. Than ya door the packing, patching, fixing till get something that “works”, but not gonna be the same, especially if in a direct sunlight room….. 6:50 YES, IT DOES, and not saying how I know 🤦🏼 Great vid, cheers✌🏻 ¹ edited for autocorrect, correcting sentences that MAKE NO SENCE🤦🏼😅

[@diehardfan173]

3:00 I love your honesty! So many people don’t admit fault especially in videos.

[@NiktheEnglishGreekCypriot]

Mate expanding foam is an amazing tool to have, I’ve solved so many internal cracks on walls, staircase string, tape and joint fills etc which were due to movement which we all know is what causes cracks

[@rupe53]

when doing spray foam you can tuck a piece of crumpled paper in bottom of the void so the foam doesn't "drip" as you fill up the hole. You can also topcoat the patch with automotive sandable primer. It's got more filler to close up sanding marks and it dries fairly fast. Also, the light grey color will allow you to see if you have a nice edge as you sand.

[@bobcougar77]

Spritz the spray foam with water and it will cure faster. Also: make sure you don't use the "window and door" spray foam. It stays permanently flexible.

[@pegbutwin7189]

I love your videos and have learned so much! Thank you!

[@bladee_enjoyer540]

I've used bondo over spray foam, my repair job was even more of a hack since it was a wood grain textured panel door that had been kicked in on the bottom. It seemed to work pretty well, I didn't worry about it too much since matching the contour of the panel bead and the wood texture would have been basically impossible, and I was cutting a hole for a cat door in it anyways.

[@bladee_enjoyer540]

I took the door off and did it in the garage anyways, since bondo is so stinky.

[@P46345]

Reminds me of a "how to get rich" seminar I went to back in the 90's. The guy giving the seminar talked about when he almost lost house to the bank, they showed up and put a foreclosure notice on his front door that clearly stated "Do Not Remove Under Penalty Of Law". So he went into his living room and got one of his pictures and put it over the foreclosure notice. He said some of his neighbors even complimented him on the picture on his front door.

[@astromaddox1989]

Another nice video. I replaced a bathroom door and it's not as easy as it seems. Have to readjust door cut new holes and line things up.

[@tridium-go6hw]

Bondo will work fine (old body man years ago here), but probably not any easier/quicker/cheaper than replacing the door if done properly. The fast cure you mentioned is your downfall, Bondo will shrink noticeably within the 24 hours after application. So - glue in a backer, but rough up the backer surface the Bondo will touch - really rough, like 40-60 grit. The rougher the better. Apply one coat the first day, let cure an hour, then sand with pretty coarse grit. Apply a second coat right away if repair is still low, cure an hour, sand. Next day apply a VERY thin coat, let cure another 24 hours, finish sand. For extra credit skim with auto body glaze filler, dry, sand. It will look amazing, but not worth the time and effort unless you're the homeowner with time to spare.

[@michaelfranks3759]

You are amazing. Your definitely a Master of All Trades. You deserve your own show on HGTV.

[@janicelindegard6615]

This saved me a lot of time. I’ll be replacing the door I thought I’d repair. I’m too much of a perfectionist to live with the patch. I’ll always see it. Lol

[@kmonnier]

I’ve used JB weld wood filler epoxy over foam and it worked well enough. No foam melting or over heating. The white putty that you are using looks better and lower hassle than mix epoxy.

[@bjmbjm]

The foam expands and contracts more than the rest of the core with temperature. So while it is easily applied and shaped as a backing, it spends the rest of its life jacking your patch back and forth. This is likely why even good patches slowly work their way loose. Using a true wood backing block would probably be a better match to the core plus it would also react similarly to the fiber core material with humidity. Ideally another piece of core could be glued in.

[@blkrainbow1075]

Done this repair before myself but you are right that it was worth the watch because now I know the best product to use to cover the spray foam. Also was happy to see you say that it's difficult to get flat surfaces flat. Repaired dings in a steel door with Bondo and was really unhappy with the results. Took me forever to try to finesse it and it never got as perfect as it should have been with all the time I spent!

[@Chris.Rhodes]

I've fixed a few dents in steel doors, my best luck was sanding it to get a rough texture, and use Ready Patch, and I've even used thick 5 minute hot mud when fixing tiny dents. As long as you prime and paint, it's not going anywhere.

[@blkrainbow1075]

@@Chris.Rhodes I appreciate that advice! I'll be taking you up on it!

[@Chris.Rhodes]

@@blkrainbow1075 good luck! If you don't have any luck, try Rock Hard Water Putty. That stuff is crazy

[@DavidWardJr]

Used the spray foam & Bondo hack. It was easy to work/sand. The door looks pretty darn good.

[@TheBookofHarris]

This is EXACTLY the video I was looking for

[@josephtucker9612]

I was told bondo swells after absorbing moisture. When using bondo on a car the backside has to be sealed to prevent moisture from getting to the bondo. The bondo gets completely sealed in. Using foam on the backside will keep the bondo from absorbing moisture and swelling. I repaired some hollow doors 2 years ago in an apartment my daughter rents and I can't find where I repaired it. When the hollow doors were cut they left a lot of splintering on the ends. I used bondo on that as well. I used an orbital sander and painted. The doors looked brand new when I was done.

[@gregjones3660]

Some crazy stuff to use. Two part epoxy. Strong as h*ll stupid hard to sand. Yeah it worked.

[@danajz6575]

This is what I did in one of the apartments that we own Joseph! Worked like a charm and nobody even knows!

[@srharris88]

I'm not so sure about bondo swelling from water. I'm not a body man but from what I have been told, proper prep on cars is to use a 180 or rougher grit paper on raw metal for proper adhesion. Then prime and seal over the top.

[@olivierbourgeois4748]

As a landlord for exactly 50 years , I have tried many different products. The best product is auto bondo. It dries by chemical reaction. I crush newspaper and push it in the hole, so the bondo is contained. I make sure I leave a space all around inside the hole of the door. I do that so that the broken edge is supported. This gives the patch strength and prevents the bondi and the broken edge from separating. I let the bondo harden 24 hours, then I sand smooth. I then spread carpenters glue over the patch and apply a piece of brown paper that is twice the size if the hole. This prevents any cracks from developing around the hole. I then mix up some 5 mins. Hot mud to smooth out and cover the edge of the brown paper. When that is good and dry , I lightly sand it smooth. Apply 2 coats of Bin primer over the whole door, then a finish coat of paint. The patch is stronger than the door was originally, no need to baby it. The patch will not collapse. I dare anyone to tell me where the patch was made. Shine lights, examine it in the sunlight the patch will not show. Auto bondo is not effected by water. I have applied a good auto bondo to fill holes in wood, outside and left it for 2 years , then got back to paint and it was fine. This process had never failed me. Boyfriends and husbands have punched holes in hollow core doors over the years. This method of repair avoids having to cut for hinges and drilling out the holes for the lock and saves the cost of a new door.

[@Beandiptheredneck]

Whoever told you that was incorrect, I've used bondo to cover over holes I auto body parts, it hung out just fine as long as you didnt whack it

[@kingofthedeepsea2458]

Wow amazing repair

[@mostlikelywedoitservices6926]

Absolutely agree. The time alone to fix it is costly. And won't be as good as a new door.

[@Gygesdcom]

I used an old sanding sponge instead of spray foam. The size was a couple inches. I used a debur tool to clean up the damage. Cut the sponge down to size WxH and used plastic wood to repair it. It worked out great.

[@Osgood913]

Spray foamed that like button. Not my best work, but it got the job done.

[@grampabadger]

It is possible to use a cabinet skin, attached over the whole door with structural adhesive, sanded and painted. Quicker and adds strength to the door. I have done that at several locations and it was always successful. Easier than replacing the whole door, too.

[@congoose100]

I need to stop punching doors. I thought I could patch it quicker than you showed. Haha, thanks for the video!!

[@jimcika8945]

Starting at 17:54, always keep your brush dipped to keep the tips from drying out. Even in the short time it took you spot prime the doors, that brush is drying on you, especially if it's a quick dry paint or primer.

[@PetePuebla]

Great video explanation point definitely going with Dyna patch versus wood filler.

[@CaptNaufragio]

I did a bunch of closet doors and some exterior doors on this duplex once. I cant recall exactly every patch i did, but something il often do is crumble paper to get some backing and bondo a few coats over it. They came out decent enough,still in use today, but ill tell ya.... The time it took to sand, repair, paint, and rehang... I think a cost/benefit analysis would at best have the homeowner break even on just buying new doors. Precovid anyway. Ill say two things; i wouldnt be scared to bondo over the foam. Its likely going to melt a little bit, but it wont kill you, especially if the doors are pulled and the work is done outdoors. But again, even if you do all this, it might be more prudent to just get new door skin and replace the whole face if the owner really insists on not purchasing new doors. One small patch might be one thing, but a group of them? Not worth the effort.

[@bill9097]

This was super entertaining to watch - great entertainment. But the real way to go is to spend the $50 to get a new door - there's $300-500 in labor to fix this and 1/10 to toss it. That said, great info, ideas and tech Ben - LOVED this!!

[@vancouvercarpenter]

Glad you enjoyed it!

[@leroychavez9409]

nice work. I like the way you explain how.

[@leroychavez9409]

to work with materials.

[@spelunkerd]

Ha ha, I really like this video. I put off my past failures to inexperience. As you say a pro who does drywall for a living certainly has the necessary skill set. If you can't get it perfect, I have no chance.

[@brianmoore4691]

I have repaired hollow core doors with expanding foam (Door and Window ) low expansion type and Bondo. However, I add one more element to the repair. I will add wood Shim under the door skin and let the foam hold them in place. I use some safety wire to get them into position and once the foam is sturdy enough. I will pull the wire out. Then cover with Bondo. This gives me a better foundation and makes for a better repair.

[@billleroy6736]

I like the spray foam that dries harder. I even used it to fix rust on my old work vehicle before I used bondo

[@gettin-stuffdunn6028]

You were working with smooth surface doors and your looked good. What becomes even more challenging and a bit of an eye-sore repair is trying to do the same on a imitation wood grain surface hollow interior doors with raised panels..

[@thoughtlesskills]

Only way I've seen of pulling that off I've seen is a by making a silicone mold of the texture and using it as a stamp, still near impossible and cheaper to buy and paint a new door.

[@YIDARMY08]

Thanks - I punch holes in my doors weekly so this has been a big help.

[@DimeBag-tt8qj]

😅😅😅😅

[@PGBartlett]

I've done the same repair using Bondo and it worked great, but I think Dyna Patch would work even better.

[@kennyc3765]

Bondo and spray foam has been holding my cab corners together for about 3 years now. Still looks good

[@tvguy12346]

I've used bondo over sprayfoam for cheap body work on a car. bondo absorbs moisture -- paint/seal it asap

[@jm7974]

I've never patched a hollow door, but using your method, I would have 1) made sure the spray foam covered an area 3-5" larger than the hole, filling the entire inside core so that the actual door stays supported against compression and tension going forward (minimizing the localized movement across the edge transition of the patch material). And 2) ground or sanded the area around the hole down to leave a "relief" to be filled (maybe 40 grit or maybe even a sanding disk on an angle grinder, maybe 2mm relief up to an inch larger than the hole). And 3) MAYBE bedded mesh (using the 6" roofing repair mesh rather than drywall mesh). And 4) used some kind of filler designed for flexible parts, like maybe a style of bondo that specifically won't crack when used on bumper covers (which are subject to constant flex and vibration). Just thinking of the issues you mentioned (which I never considered before) and how they might be overcome.

[@OMGWTFLOLSMH]

This video was painful. I have no idea how he has so many subscribers.

[@clydenakashima7393]

Have you tried a epoxy wood filler over the foam and automotive glazing putty for filling in any imperfection in the wood filler after sanding it.

[@thearts5163]

I’ve had some success with Durhams. But with the spray foam it still cures a little more over time and you’ll slowly see a corner or so rise up

[@jimbendtsen8841]

fill the hole with high density foam, like loctite foam. cut and sand it flat. knife on some of your favorite finishing compound, like vinyl spackle. Works great.

[@tone7560]

What a great video. Good to know

[@Mannnnnnnnnnnnnnnnnnnnnnnnnn]

Fav yt skater helping me fix the hole in my wall😭

[@Gypsyman40]

Masterful job

[@elained9591]

Decades ago my Dad and I replaced the wood on a hollow core door. I’m not sure if you can still purchase the replacement panels. As I recall, we removed the panel with a putty knife and utility knife, cleaned up the old glue, replied the areas and put the new panel on.

[@jthomos21]

I agree that replacing the Hollow Core door is the best repair. The rest of the video is for pure entertainment!

[@Blackbypopulardemand305]

Also, mh ready patch is really good as a bondo substitute. It dries so quick too

[@naderjunaid6733]

I used bondo and worked out to be excellent for fast and clean job. I did in in my patio so no bad gases. Bondo is the best. You do need to use KILZ or some other primer before you paint.

[@ronaldbrown5796]

all purpose joint compound works wonders.

[@lorensteele2962]

Definately but if its thick will likeley crack when drying

[@philliptoone]

Yes, I've done it on a home I was selling. My real estate agent couldn't believe I didn't just but a new door. But I wanted to try it and show that it could be done.

[@Thesamtvv]

What did you use?

[@tuirrenn]

For most of these patches, I use Bondo, big fill pass, and then a finish pass, then hit it with an orbital sander and some 150 grit. if it still needs some love at that point, I hit it with the dynapatch and back to the orbital.

[@conradcoolerfiend]

i used dynapatch the other day on a penny sized hole caused by a hinge bumper. i just patched right over the caved in hardboard and used it as a backer. looks good from my house. dynapatch is dense and hard AF.

[@disillusioned070]

It's funny that I've heard you complain about roller covers and lint and crusties in a couple of your videos now. I have found a good rinse, wring, and pat dry with a towel will practically eliminate this problem with new roller covers.

[@Beandiptheredneck]

I've used bondo over spray foam many times, but on cars and trucks to fix rust holes 😅 it worked fine, I didn't notice any games coming from it 🤷‍♂️

[@Blackbypopulardemand305]

I love it. I fixed 2 hollow core doors but next time I'm doing it this way

[@ssbsnb1200]

I have a patching project. One patch has a 1" gap. I have plus 3 and rapid set onepass wall repair in the garage. Which would be better to use?

[@als1023]

Bond aka short strand fiberglass works well on exterior fiberglass doors, bondo the body filler works well on wood, fiberglass metal etc, anything with a solid base, I'm not a fan of using it over spray foam, never tried it actually. I love Dynapatch, great product ! It can be softened with a touch of water, makes it easy to spread.

[@Beandiptheredneck]

Bondo filler and short strand fiberglass are two different products 😉

[@airgapmachine]

If you want the best results try spray foam + dynapatch + bondo glazing, then prime/paint. I cut the foam back a bit more and a bit behind the edges so dynapatch is thicker and stronger than what you did.

[@newdecade5056]

So adding all these items together, what’s the estimated price for the repair?

[@nicholaserkelenz6431]

You may already know about this product but instead of the wood filler you could try bondo glazing and spot putty. Its completely different than the two part bondo that you mix yourself. It comes pre mixed in a little tube and is bright red. It shrinks a ton so its only really good as a final top coat but it sands as smooth as glass.

[@als1023]

High end painters use this a lot, as well as commercial guys doing level 5 finish in towers. Using automotive techniques is very popular in woodworking, Fine Woodworking magazine had a monthly contributor on the subject for years. I've never regretted adapting those methods to my arsenal.

[@olivierbourgeois4748]

I am a landlord. I have been fixing holes in hollow core doors for 45 years. I experimented with many different materials to fill the holes. I wear Vyinal gloves , I mix some bondo then dip newspaper in the bondo . Then when the newspaper is well coated I stick it into the hole. I don’t make a hard ball, I stick it in loosely . When the bondo dries the newspaper will stop the panel from flexing and cracking around the edge of the patch. The newspaper provides the same framework that the honey comb cardboard between the panels. When that dries I apply a couple coats of bondo, letting it dry hard between coats. Let it dry 24 hours. Then sand smooth and prime with bin or spray Kilz. There have been times when I go 1 step further, I cut a piece of silk or rayon scarf bigger than the repair and glue it over the patch . Then skim coat that with hot mud and sand. This patch will never show. Guaranteed. The spray foam is a bad base for a patch. It is weak. Patch will definitely fail in a short time.

[@absali7664]

@@olivierbourgeois4748 Is the last part necessary to ensure that the patch never shows? I have no experience with hot mud so I'm wondering if I will be fine with just your first steps

[@absali7664]

@@olivierbourgeois4748 Also, what grit of sander did you use?

[@amylemaster1609]

Turned out really nice! Anyone else turn the volume down while he was cutting that?!? 😬

[@lexboegen]

I don't know if it's available in Canada, but Home Depot (and other hardware stores) carry Durham's Rock-Hard Water Putty. It's a cream-colored powder that you mix with water to a thick putty consitency. It's dries hard and is sandable and can be stained or painted. It is non-shrinking. I used it a lot in model railroading decades ago. I think it's similar to Bondo, but water-based. I have never used it in an application like you demonstrate here, but I wouldn't hesitate to try it.

[@thoughtlesskills]

I just tried it for the first time recently, good stuff. Ace has it too.

[@BStreet666]

I know you're a busy guy but that door replacement video would be great. Our house has three interior doors which are all 2" above the floor line due to the old shag carpet I removed.

[@chrisburns5691]

you can also add wood onto the bottoms, sand flush, fill, sand again, repeat as necessary, and paint door multiple coats. if you like the doors that is.

[@Aepek]

17:41 Who needs a Palm Sander when ya can move your hand just as fast, dang🤣

[@Amanda-pc9wo]

I wish there was a list of products used in the successful patch. Maybe list in description. Would make it easier when I head to Home Depot.

[@hermessanchez7955]

I cut a hole then use a piece of thin smooth plywood thats too long one way but fits the other. Instead of the foam that can deform over time the wood give a solid surface for the filler and doesn't sink or deform. Haven't seen it done that way on youtube but it works.

[@handymanglenn8443]

How does the ply wood stay in place?

[@olivierbourgeois4748]

@@handymanglenn8443 the strip of wood is held in place with construction glue . So the strip is held from the inside. You hold the strip in place by drilling 2 holes in the middle of the strip and running a string in and out of the holes so that you can tie the string around a piece of wood that you twist tight to draw the wood strip tight against the inside of the door, until the glue dries .

[@mrmime125]

I was just wondering if the good ol' quick set worked out as well. :)

[@mibz1117]

Awesome ben thanks

[@craigkovatch7564]

I recently used some 90-minute quickset to repair a hole in a hollow core bifold closet 😂 Seemed to work just fine, we'll see I guess

[@wadewilson5296]

Just found your channel, so glad I did! What type of drywall vacuum do you have? I have some home improvements to do & I really like that it's a self cleaning vacuum.

[@vancouvercarpenter]

It's a festool CT36. A bit on the pricey side.

[@wadewilson5296]

@@vancouvercarpenter totally worth it if it keeps dust off of everything!

[@robvermeulen]

"It aint rocket surgery" made me chuckle :D

[@foufou33g]

have few dents in the bedroom door, I was thinking about making a small black board on the door (stained not painted). carve a bigger square hole, Laminate few 2 by ti fill, plane flush, paint with blackboard paint and add frame ...

[@AEON.]

Hey, the easy way is to reskin the door with an entire panel and using some construction glue. Another way is getting bondo - and using fiberglass matt - shred some of the fiberglass and add it to a batch for the hole. get steel mesh - place it in the hold - hold it with a magnet - add construction glue around the edges inside on the steel mesh. use bigger magnets to hold the steel mesh in place until the glue sets. then do the bondo diy kitty hair mix. - mix it HOT and place it on fast. doesnt have to be a thick layer - it dries in an hour - sand it and do another layer without the kitty hair. If you want to do a great job - treat it with a top layer of EVERCOAT - its a smooth and flowing bondo it is not thick like regular bondo. - again just placing an additional panel over the entire door is the easiest and fastest way to fix it - the edges - make sure you strip off the strip of panel and cap it with another piece so there is no lip or edge showing

[@GreenDragonPainting]

I paint a lot of rentals with those "Lord Calvert" holes. I always shove a ball of masking tape in, then 20 minute mud.

[@ubernerrd]

Every try using Durham's rock hard putty? I've used that along with spray foam to patch holes in all kinds of stuff.

[@TheCranehunter]

I have found bondo over spray foam in bad rust repairs on cars, yes it held until I ground it out.

[@woodmasterguy]

If there is broken attached pieces like you have there, I fill with non expanding foam then bondo, is it perfect, no, but it works holds paint well and most clients don't care. Now I did have one client that insisted I re skin the door with a new piece of Luan, the repair cost more than a new door, but the client wanted what she wanted...

[@brianmoore5498]

i use foam too but after foaming i cover the hole with blue painters easy release tape then brace a flat block against the patch and wait for it to dry. after the foam is dry i just peel off the tape and its ready to paint without any filling or sanding.

[@handymanglenn8443]

That would look different to surface if the door, would need to sand surely

[@tristanbeddome3475]

Try prefilling with Confill instead of sprayfoam and then topping with Dynatron glazing and spot putty.

[@lastboomer6164]

Where can I buy Dyna Patch Pro Spackling Compound - Doesnt seem to available at Home Depot or Lowes. Amazon want sme to buy a case of it for $88

[@JohnSawtell]

Make the hole square and make a backer out of thin plywood that is big enough to span the gap but small enough to go in diagonal. put a hole in the middle of the backer and use that to manipulate it into the hole and glue it in with wood glue. Screw around the edges to hold or just use another piece of wood on the front and screw that on to hold. Once cured cut a plug out of another piece of thin plywood leaving it a little bit of a loose fit on purpose. Use a router to cut into the backing piece so the plug is just slightly recessed then glue the plug to the backer with wood glue. Once cured use DAP Plastic wood on the edges and over the plug surface to level. Sand and then coat with Zinsser BIN shellac based primer and sand again. The patch will not show up in the future as the edges won't have the ability to move independently of each other even if you smack the door right on the patch. I recommend plywood as a plug over Masonite as it sands much easier if you messed up and wound up a bit proud after gluing. The two very specific products mentioned will give a much better result than just using generic filler. On solid core doors where you may be doing something like patching over a dog door the same technique works. In that case you cut your patch out of thicker plywood or MDF and then use that as a template to route around the edge of the existing hole. In this case your making a rabbit to drop the plug into.

[@fatninja987]

Bondo over spray foam is how I “fixed” the rust on my car the first time. Now I am fixing it again 😅. I think it would work good on a door though.

[@innercityracer]

I've heard you talk about sanding your primer on several different videos. Why do you sand the primer? What grit, how much do you sand the primer?

[@arosepetal2000]

I’m also curious about this. I hope he answers you!

[@kellyredacted2107]

@@arosepetal2000 I'm not sure, but I think he just knocks any high points down/off...Depending on the type of primer I use, I sometimes get little nubs, so I give the entire surface a light sanding. I have more issues if I use a bonding primer since it's so much thicker.

[@MiklaDfar]

ANOTHER excellent vid. ------ WHAT ring light is that???? ------

[@james10739]

I mean I think you could probably do spray foam and like fiberglass and a Bondo to make it perfect but I mean the time and all you are probably better off replacing it and the solvents probably but I thought spray foam was pretty stable but I guess you could try to glue some hard board on the inside like 2 pieces so you can get them in with plenty of surface area to hold

[@peteverrelli5797]

I’ve actually have had success using easy sand 5. I’ve also used bondo with success as well over spray foam.

[@conradcoolerfiend]

"easy" sand XD

[@bobmanp8653]

Hey where do you get that wide roller from?

[@thomaswypyszinski3645]

😂 Looks good from my house. I've said that SO many times! (Jokingly of course) 😏

[@lastboomer6164]

OK - Just realized Dyna Patch is not at any local Walmart, Lowes, Home Depot but seems to be at Canadian Home Depot. What is an equivalent product in the USA? I am in florida.

[@kishka7]

Ever use Durham's Rock Hard putty? single ingredient, mix with water, no shrinkage, stays put and sands very fine!