Hollow Cast A Complex Part - Rotational Molding Tutorial, Part 1

[@RobertTolone]

Here is a link to a downloadable PDF file with a list of the rubber, resins and waxes I use in my videos: www.dropbox.com/s/kz6mhmf7v5vpy7l/Material%20and%20Suppliers.pdf?dl=0

[@mattisland]

Robs the kind of guy you wanna sit down and have a morning cuppa coffee and chat with

[@RobertTolone]

Until you actually get to know me - then not so much.

[@davidcoombes2668]

entertainment value 10/10 ,information value 10/10. If your not a teacher ,you should be.Greetings from stokenewington london.

[@RobertTolone]

Thanks for your nice comment David. I’ve only visited London once but what a great city! I look forward to spending more time there. Cheers!

[@mindofmadness5593]

I was concentrating so hard, paying attention as I have several Projects that are going to require Complex Casting-when your Compresser clicked on and you being so soft-spoken, I nearly jumped out of my seat. lol

[@RobertTolone]

I should have muted it in the video!

[@jarvispennyworth5741]

You sir are so fun to watch.

[@RobertTolone]

Glad you enjoy my videos Jarvis. Thanks so much for watching.

[@3DZipGuy]

@@RobertTolone I love your channel so much, I'm going to subscribe twice! (with my Jarvis Pennyworth account and this one)

[@RobertTolone]

3D Zip Guy Thanks!

[@NadaMakes1]

Robert your videos are always so fantastic! So valuable, thank you so much

[@RobertTolone]

Thanks so much for the nice comment! I appreciate that you take the time to watch. It really helps me to keep making videos!

[@SwissplWatches]

Fantastic ! Thank you

[@1332khan]

Thank you, Robert.

[@piegrande3000]

Sir Robert Tolone, You are amazing !

[@RobertTolone]

Thanks, I’m glad you enjoyed the video!

[@daddypadman4723]

Seen a lot of you’re mould making videos but I’d love to see some wax sculpting videos

[@Magicguy33]

Thanks so much Robert!

[@theantichrist6524]

I enjoyed watching and yes I hit the subscribe and like button

[@RobertTolone]

Thanks for watching, I appreciate it!

[@deliastubbs6243]

Robert, I learn so much from your videos I so enjoy them, thank you. I have a question for you Robert. So when doing rotational casting is there a less expensive material to use than resin? Do you have any recommendations. I would like to make the outer layer of my figuring with resin, then I would like to use a cheaper/ less expensive 😁 material for the inner/second layer of my rotational casting. Thank you Robert any recommendations would be appreciated 🙏

[@RobertTolone]

There are less expensive materials than resin for rotational molding. Some plasters are made to be hollow cast, as can water-extended polyester. it’s probably not a good idea to try to make a resin shell backed up by a cheaper material. you could have all kinds of adhesion or shrinkage problems. One other option might be to use a urethane foam to back up the shell of your hollow casting. This method is commonly used but it can be tricky to make work.

[@BebawyGNB]

God Bless you! Thank you so much!

[@RobertTolone]

Thank you George!

[@joepatty9762]

I’m replicating some small parts from a WWII 3” Naval Deck Gun (MK22). A few of them resemble a thimble (larger 1” diameter x 2” long). The interior wall is as smooth as the exterior. My question is how to mold a shape like that?

[@TitusKrakenDesigns]

did you put a plug in the pug?

[@RobertTolone]

Be sure to always use a pug plug if you’re putting a plug in a pug.

[@TitusKrakenDesigns]

@@RobertTolone :)

[@tehyakai8192]

Is anyone else just here to listen to Robert talk? No… Just me? 😅

[@SteveK139]

awesome

[@RobertTolone]

Thanks!

[@DanicusPrime.]

Hello Mr. Tolone, I do have a question. Something I've never done myself. Can one build a sculpt out of cardstock and make a mold of said cardstock sculpt? Of course not under pressure. Something I want to attempt to do soon actually.

[@RobertTolone]

Silicone rubber can bond to unsealed porous surfaces like paper, cloth and wood. Test a sample of your card stock using the silicone rubber you plan to mold with. If it sticks you will need to seal the sculpt before molding. Also, if the sculpt is hollow it will be critical to make sure there are no leaks in the joints. Rubber can seep through incredibly tiny openings.

[@DanicusPrime.]

@@RobertTolone should i use the bees wax to coat the cardstock? Lol

[@RobertTolone]

Yes, beeswax works! But there are lots of things you can seal with. Matte medium, shellac, sanding sealer, Mod Podge, etc. I’ve used lots of sealants. Often a project comes in and I don’t know what the finish is. So I always test the rubber on a small spot on the sculpture to see if they play nice together.

[@DanicusPrime.]

@@RobertTolone my only concern mostly is the weight of the rubber warping the cardstock. I tried epoxy on a small part and lets say it didn't work out. The epoxy for some reason didn't take too well to it. Tried wood glue and it worked as a sealant but wasn't hard enough to my liking. Which is why I wouldn't mold under pressure because I know it wouldn't be able to survive. Btw Thank You for the advice, its much appreciated.

[@jaysenjohnivanturner1972]

Hello Sir. Thank you is it possible to share a special project that we need help with ….I think you will be interested in. Please let me know how to proceed with photos initially. I appreciate your channel and your extensive knowledge. Jaysen

[@RobertTolone]

Reach me a [e-mail]

[@Fungii0.0art]

Robert, I need your help to make a mold! It's a chainsaw with faces on it 😂. However, It's made out of ceramic. Could you even make a mold out for ceramics?

[@RobertTolone]

No, I’ve never made ceramic molds. Those are a whole different universe.

[@levinebette15]

Mold material melts at higher temp than bottle?

[@RobertTolone]

No, glass melts at a much higher temperature than wax. The mold material is RTV silicone which stands for room temperature vulcanizing. That means it cures at room temperature. No heat is needed to vulcanize the rubber.

[@levinebette15]

Robert Tolone Glass?

[@levinebette15]

Robert Tolone that bottle was glass!

[@levinebette15]

I assumed that was a plastic bottle!

[@dianeharris2687]

Very interesting project, but OMG what were they thinking to create a pug toilet brush holder???!!!

[@RobertTolone]

😄😄😄

[@levinebette15]

Melt beeswax? On stove and heat gun?

[@RobertTolone]

Any heat source will do. Just make sure you don’t overheat it. Beeswax burns at relatively low temperature which is why it makes such nice candles.

[@paulyjackdaniels3432]

... what is he gonna use it for?

[@tomo4635]

Whoa, hold on, you want a plug where!? 1:37

[@SuperXygote]

oh crap, need to get a heat gun so i can be somebody. Does a hairdryer make me half a person at least?

[@RobertTolone]

No, you’re just a little too chill.

[@magnuswootton6181]

thats a strange looking beer mug.

[@RobertTolone]

Yes it is. Mine is not to wonder why. Mine is but to mold or die.

[@magnuswootton6181]

@@RobertTolone thanx for the great vidz. ill be back, ive got a dream casting i want to do in the near future (no time like the present. :) ), so ur helping me alot.

[@stevesetzer3361]

10,000 steps here..... my god, Im intimidated. On the first viewing,I have no idea why each step is being done.