All about epoxy glues for RC models

All you need to know about epoxy glues and their use in building RC planes.
There is also a brief mention of Acrylate adhesives and how they differ from epoxy.
If you have any questions, ask then in the comments or in the RCModelReviews forums
www.rcmodelreviews.com

[@G56AG]

Really good information, most people only know you mix A with B and it sticks stuff together, so this substantially expands our knowledge of epoxies.

[@yardy666]

As always, great explanation, very informative, slightly humourous. Well done, I love your videos.

[@SaToMojo]

Has always you have covered the subject like a very competent teacher. Thank You Professor Bruce

[@irvy4u]

One fine informative video. Deserves my thumb up. Thanks mate.

[@hurmer]

The most worth a while video i watched on youtube!

[@Hells_Gate]

Hi Bruce, just had a look at your axn build, which I have just got another, but now like LIPO's they dont ship glue... at all from H king. Looked at your epoxy glue vid and you said you were doing more vids but cant seem to find any, that aside any recomendation on a glue for the axn? I have used a rubber contact glue before with ok results but thought you might know of something better? Thanks

[@gaskelldave]

Thanks Bruce, another very informative and useful video. Keep them coming.

[@livvidd]

this was an excellent tutorial Bruce. thank you for all you do.

[@easystar123]

hi there, I enjoyed watching your video on epoxy glues. I have just built a super frontier senior 46 which is very similar to a sig kadet senior. the wingspan is 80 inches. when I glued the two wing halfs together wth epoxy along with the dihedral brace a noticed I was left with a slight gap where the wings join. I filled this gap up with thick epoxy. do u think I have added too much weight to the wing? kind regards aidan mcatamney

[@helicrashpro]

Im not going to get into the chemistry here but I will point out that epoxy bonds to the surface via a chemical bond and not really with a mechanical bond like many people think. Most people think that roughing up the surface provides a "keyed" surface like noted in this video and makes the epoxy lock into grooves mechanically. The mechanical component here is actually pretty minor and what you are really doing when roughing up a surface is providing a significant increase in surface area for the chemical bond to take place. Another thing worth noting is that parts to be glued need to be very clean and free from oils. Oils (even from your skin) can cause poor bonds. Some types of wood can even have enough oils in them to make glueing an issue. Many plastic parts can have release agents used to allow the plastic part to be easily removed from molds. These release agents are often difficult to remove from plastics because they are actually in the surface of the plastic and roughing it up with sand paper just spreads around the release agent and does not remove it, which is why it can be hard to glue some plastics. In most epoxy products, it's not that one product is "better" than another, it's more to do with one simply has better properties for a given application over another. I would like to see epoxy manufacturers using a hardness measurement to indicate the cured epoxy hardness which would be very helpful in choosing an epoxy for a given application.

[@dianaerickson4485]

helicrashpro Thank you for your excellent and illuminating reporting. Does Epoxy 330 (not in your report) need surfaces roughed up when it’s suggested use is on glass or china? A lapidary jeweler suggested it for my fused glass adhesion with sterling silver. May be out of your area of expertise?

[@landosand]

Incredibly well explained. Great use of video zoom. Wonderful examples at a level anyone can follow and understand. Your hired. Cheers mate.

[@ricardovides2591]

Good Job in sharing your knowledge, it is really appreciated. Question: What type adhesive do you recommend for holding electronic connector blocks together, for example the two connector blocks that connect to the receiver board on a DJI Phantom 2, I recently had to replace this receiver board and the original connections to this board had white flexible glue on both sides of connector, between part on the board and part on cables....

[@doublejdj1]

Great video. What is you best glue for bonding a plastic part to EPO foam?Fixing a plastic hinge for gear door

[@Jer0tube]

Awesome videos mate, very informative. Is it true that if the ambient temperature is too low, epoxy will NEVER set, ie when the ambient temp rises, it still wont set once it has been mixed and applied? Also which other glues are more suitable for gluing horizontal stabs and wing halves together?

[@gernnylornsxlor8603]

what do u guys think.. im thinking about using epoxy glue to my rc tires..I tried two different glues, the rc tire glue and the super glue bought from glocery store and tires still coming off the wheel. Any idea or suggestion?

[@yurdonebacon]

@RCModelReviews : Thanks for the info, old-timer! Lots of good stuff, here!

[@garryperrin2408]

Can’t find the 302 product in USA year 2020. There is a one part SH 302 super glue for plastics...?

[@pockquence]

nice video. Any tips on what epoxy to use on a broken white plastic toilet seat?

[@coltsummitt]

What glue would be best sir the shock absorber on an gas rc buggy

[@GamerSipes]

Very informative and useful for me as an RC plane builder. Thank you very much!

[@NormanHirsch]

Do you know what kind of glue is used in the DJI Phantom assembly? It's a pure white tough glue. holds parts to the plastic. Thanks.

[@MrJonnymellor]

Thank you Bruce,great info,It is such a big help to have you filling in a lot of "blanks" for me. Mostly you, and some others ,have helped make sense of so many things that have helped make this a very enjoyable hobby.New technology and dirt cheap prices(china) sure make it much less painful than 10 years ago.Have you looked into the multi battery chargers?I hate waiting on 1 battery at a time. Turnigy 4x6s, the price is right,waiting for restock.Tnx for all the inspiration and reviews.

[@brianclark5255]

What glue would you use on a crack in lexan hull

[@dpartridge2325]

If you sanded the plastic a bit would that make epoxy stick better

[@robertpaes5950]

Hi have you tried haraldyte epoxy on builds?

[@Druetty]

Tons of great info, thanks for this.

[@marto2200]

good view as usual can't wait fir the next installment cheers bruce

[@Nunya773]

what would be the best glue for automotive valve covers made of plastic? Needs to withstand engine heat and block oil from leaking? Thanks, I have a repair to do this weekend.

[@sentea711]

AB glue works fine for my rc390 clutch cover, but i used gasket maker for valve covers if it doesnt have a big crack

[@Elnufo]

Really helpful information, thank you sir.

[@jogomez1988a]

What glue do you recommend for EPO?

[@CrayonboxAviationAdventures]

Wow where did that 14mins go. That was very informative and useful information - Thank you Bruce. A like from me... Looking forward to the upcoming glue vids.

[@finmedia]

Enjoyed this episode as usual but I was looking forward to more. Did you actually make any more 'glue' episodes? I get the feeling that this is another of one-episode series! Keep up the good work.

[@JabbaBoxRetroPortal]

great informative video so much info thats useful this should have way more likes

[@CorrectiveAction]

Thanks for the review Bruce...great stuff...Question: As a rule of thumb, does it follow that a longer curing time equals a tougher bond? Thanks

[@wildwilly87]

these technical/engineering type videos are great Bruce. looking forward to the next one :) Hobbyking has saved me so much money buying epoxies. My LHS sells EXACTLY the same stuff for 5x times the price.

[@Wowwwzaaa]

Could you please put the links for the good products you mentioned?

[@nztitirangi]

Hi there, a bit OT I know, keen to know if there is anywhere in NZ where EPP might be sourced? And what glue would you use with EPP? Cheers!

[@SBSPilot]

Thank you for an excellent video. One thing that I have problem getting right is how to get the same amounts of the fluids when squeezing from the tubes. Also, how is strength affected when the two fluids isn't exactly 1:1?

[@rp4489]

Can you do a update on 302 A 302 B can not find any for sale? some other expert builders say use a 200 watt glue gun and glue Flite Test sells for it.

[@ShiaNaturesFearie]

+RP www.aliexpress.com sells them.

[@wippo76]

Hi bruce Nice video thanks But where did you buy the 2$glue? thanks

[@Bladders1960]

Hi Bruce, have you used any co-polymer glues yet - I use Doctor 3 Bond - great on foam Marty

[@edcammarata6430]

What your thinking on J B WELD EPOXY

[@johnfrizza681]

How about doing Glues part 2? You know - PVA, Urethane, aliphatic etc.

[@TheRattleSnake3145]

@RCModelReviews What is your computer? mine is getting close to 5 years old now and can render a 10 min video in about 1hr, Is that good? I use Corel Video Studio 4x Pro

[@IbnAir23]

Question What is the load weight for the floater jet????? Im doing fpv and dont want to overload it. Thank You.

[@smoothvirus]

Hey this was really informative, thanks!!!

[@consistentking56]

wich shop i can buy this

[@MrTerryTurtle]

hello there... i have a small 3 channel rtf plane it is the safety foam type.. today i crashed it and the front nose broke off... i am going to use tooth picks it help to strength it.. will hot glue do the job your should use epoxy glue...

[@toubalseddik6665]

What type of epoxy glue is suitable for delicate works and is resistant to chemical solutions?

[@jurgenblick5491]

Would it be possible that you could do a video, on all the glues that you?

[@oknadboksieovdw7296]

Can it be used to hang Ethernet in drywall ceiling?

[@chrisvos81]

very useful info keep up the good work!

[@soosmate]

Thanks, that’s really helpful content!

[@grassiew]

Would you recommend epoxy for EPO foam? If not, what type do you think works best. Also thanks for all the great videos. Looking forward to the FPV backpack build.

[@RadicalRC]

Thanks for the Mention! Now I know why this is flying out the door faster than ever. ;-) Dave, Radical RC

[@metalbluster315]

is epoxy glue more stronger than a super glue?

[@WVRetreat]

Bruce, make sure you cover Amazing Goop in your future glue video. I can't live without that stuff. Here's a tip for the crystallized epoxy: you can just microwave it (for less than a minute) to make it runny again.

[@aisyfamily9690]

Just one question... How to remove foam glue from foam? Tq

[@wildflowerr1]

what epox can work for pot metal

[@vishvasharma8495]

Sir it is really helpful. ...my thanks to you. .

[@Oagh]

Bruce,Thank you . That is some good info.

[@cscooper2000]

Very informative video! I can't quite make out the brands you're saying. Could you put the names of those epoxies in the description? Maybe links, too? Thanks!

[@Jb-uy5zx]

Excellent info thank you sir.

[@alpachino468]

Should I put flour in my epoxy resin to thicken it up?

[@Elnufo]

Use Microballon Filler for your epoxy. Dirt Cheap and lightweight.

[@1inAtrillion]

thanks Bruce, am enjoying your videos, very informative - got a question : what types are glue are best for EPO foam models ? I tried super glue & it just melted the foam! Looking forward to more on FPV back pack build & building a cost effective jet turbine engine ! :)

[@ZaCkOX900]

Good video, subscribed.

[@mhillvo]

By any chance have you done a piece on and American product known as J.B. Weld? I've used it to repair some major damage to my heli airframe and I rather like the way it bonded the polycarbonate parts. It's also sand-able in my opinion. Lightweight as well, so I don't add any unnecessary weight to the heli overall. Thanks. Enjoyed your review of these products, BTW. Quite informative. I learned a thing or two.

[@trexter67]

What is the best epoxy for high heat

[@hmpeter]

Nice description of the polymerisation process. :-) I usually use L285 manned aviation grade epoxy. 55minutes low-viscosity, 700g for 20 bucks. That amount will last for a quite long time. But there is also quite nice standard grade epoxy for half the price. I think much stuff that has "for rc models" written on it is overpriced. Sometimes it makes sense to bake the epoxy, but i don´t know the english word for that process. ^^

[@adit1001able]

can u test the ardupilot mega ?

[@richardwallinger1683]

Finwing hobby AirTitan EPO foam .. structural epoxy from 3M is slow setting .. BUT it flakes off after setting .. The kit glue goes off too quickly for the big .gluing jobs.

[@k7rex]

I have looked and have yet to find the other videos you said you would be coming out with about other RC model glues. Are they not done yet or am I over looking them somehow? PS: Your videos (all of them) are great for newbees like myself and those that enjoy the hobby. Many of my non-RC hobby friends enjoy them as well....

[@Bob_Burton]

Bruce - good, informative video as usual. I look forward to more in the series. Can I just check on your use of the word thixotropic ? To me a thixotropic liquid is one that is normally thick but becomes thinner when shaken. I don't have any large bottles of epoxy to try it on I am afraid !

[@richardkleinhenz84]

Tried to google 'reticlerc' and came up empty... any clues to the source of this 'good' epoxy? Of course there are lots of other 30-min cure epoxies around, but not being able to check them all out I figured I'd look for this one

[@shehzadkhan7710]

Very Nice Video

[@LWJCarroll]

Thanks that was interesting...having used epoxies for years now...also about the Acrylate adhesives which I bought recently at the 2$ shop...and was surprised at its distinct aroma!!...Looking forward to CA/PVA/Aphilic (?) / Urethane's...cant recall the correct spelling...anyway Rgds...Laurie

[@Kwadzy]

@RCModelReviews Ooooo, can I watch the 2 hour version???

[@MatHelm]

Kind of a Apples, Oranges and Grapes thing you have going there. 3 different brands with 3 different cure times. I don't know about the other 2 brands, but the Bob stuff in the orange package there comes in 5, 15 and 30 minute bottles. I'm certain the other 2 do also. As always, (except for the one with the 30 sec intro ;p) great video with a lot of good info...

[@unknownintruder8335]

what is the temperature range of two part epoxy? can i use it in motorcycle engine?

[@sentea711]

I've used it on rc390 clutch cover and it works fine till date, about five months now

[@unknownintruder8335]

@@sentea711 thanks much 👍

[@olddryjoint1]

Thanks Bruce.. very informative... you've opened a can of worms for me know... Would've loved a sample of Selley's style araldite as well... or maybe I should not be so lazy and test a few myself..

[@User5cod]

thanks for the info!

[@lemoncreampuffs]

What happens if you only use one the the 2?

[@furroy]

the strength is not based on where you buy the epoxy or who the manufacturer is, it's only based on the cure time. usually 5, 15, or 30 for bonding epoxy. bob smith makes all the diff kinds, the 5 will be brittle and the 30 much more flexible.

[@Major_plays]

is the good epoxy the same weight as the crap stuff or is the crap heaver?

[@jahairl227]

Good info.

[@SolarPoweredGardener]

If after squeezing from bottle on colder days it feels to thick to mix properly I hit it with the heat gun for a few seconds...

[@stevendegiorgio3143]

I'm going to use epoxy on the stab of my new V900 which is made of EPO foam hopefully it will work.Im not going to depend on the screw. to hold the stab on

[@ABritInNY]

Spent most of this video curious yet annoyed at what I thought was my mistake in getting epoxy to glue back a broken abs plastic ebike panel. I was sure I'd got the 'useless for my purposes,' type of epoxy and was annoyed at the bad advice I'd taken from people in what to use to repair it before I'd bought. So I was glad for the final part on successfully gluing plastic, where you described the cheap 2 tube acrylate stuff, because it appears that is what I have, now I'm wondering why it's even advertised in the rc world as being epoxy? It's a lil confusing to a novice with the stuff.

[@MyOnehand]

very informative got to have good glue !!!

[@pradipmakwana9351]

Buy karna hai kese kare

[@mayantribe]

@grassiew of course u can use epoxy on epo. they say use the 2in1 epoxy for ur foam planes.

[@Xempt_One]

weird, i bought some $2 epoxy the other day with the resin and hardener but it does exactly what you describes the acrylate glue to be, including the smell

[@MattacksRC]

yea, Im having a bit of a dilemma on which glue is best to glue the servos into my multiplex Blizzard I'll be building soon. I see many people seem to prefer hot glue for it, the instructions are telling me to use medium CA but, I have a tube of airfield rubber cement that I think might be the ticket. decisions.. decisions..

[@GmailUnited]

is it acrylate or acrylite?

[@Granite]

What about E-6000?

[@newcome880]

great video, now I know that the two little A+B tubes I bought are really good glue. However, I still don't know how to use it exactly (and how long it takes to harden) since there simply won't be any readable manual when you buy it. Just a notice: only use in ventilated areas. The manual (on the backside of the cardboard the tubes are packed on) is in damn freakin chinese. No way I could decipher that :( well I'm gonna try it the way it's been suggested for the other glues in your video and hope it will work :-)

[@paulbryant49090]

A good way to get close to equal amounts of the two parts is to weigh them. Use a digital scale that measures .1 or.01g or less, set mixing container on the scale, add (for example) 3g part A and then add 3g part B and there you go. A lot better than eyeballing it.

[@thewillage]

Good stuff as always. But no mention of these glues and how they work with foam. Depron, EPO etc.

[@SEThatered]

I just want to correct the glass analogy. Glass is very poor at tensile loads (hanging/stretching), but it is on par with concrete when it comes to compression strength.

[@gluino]

Is your 15-minute mid-cure BobSmith or HobbyKing? I know that HobbyKing has a BobSmith-look-a-like series of epoxy. Are they the same?