I Want to Make Resin Tires
Posted 02 June 2008 - 08:07 AM
After about 6 months of trying to find tires for one of my models, I have given up and decided to make them myself. I have read extensively many posts on numerous websites and how-tos about resin casting so I understand the overall concept (but not yet tried it.)
My question is: should I try to cast the tire as a complete unit or in two halfs that I glue together after? Reason I ask is the tires will have a pretty aggressive tread pattern (BFGoodrich Mud Terrains) so the possibility of not being able to get out all the bubbles may be a problem.
Thanks for all your suggestions,
Posted 02 June 2008 - 10:10 AM
Posted 10 June 2008 - 01:55 AM
Posted 19 June 2008 - 08:45 AM
Posted 11 November 2012 - 09:12 AM
Posted 12 November 2012 - 05:36 AM
Posted 12 November 2012 - 06:37 AM
Posted 12 November 2012 - 06:41 AM
You may want to get a pressure pot to get all of the air bubbles out Harbor Freight has them for 39.99.
Thanks for the tip! Gonna have to check this out! Thanks !
Posted 12 November 2012 - 06:25 PM
Until then I can still use the mold to pour traditional resins. The only catch is that when the casting is cured I have to cut the cast down the middle to get the center part of the mold out of the casting. Then glue the two halves back together and sand/smooth and paint. I am still playing with this process and trying to get a better handle on it. And this is merely a rather simple racing slick, with minimal detail. I can only imagine what a treaded tire would require for work.
Posted 13 November 2012 - 10:31 AM
casting as 1 piece will usually cause an air pocket on the back side of the tire leaving a hole
Posted 13 November 2012 - 12:19 PM
Posted 14 November 2012 - 04:05 PM
PM sent Jim.
Thanks Alan, good luck with your project, looks intense and time consuming.
Posted 18 November 2012 - 08:55 PM
At hobby Lobby, you can get the Alumalite casting kit for around 80 bucks; with a 40% off coupon ( available on line) that brings it down to about48 bucks. You can also buy their 'Amazing resin,' for about 15 bucks, which is a white resin with fewer air bubbles than their regular resin. They have 2 differant molding compounds at Hobby Lobby; the 'pink' stuff does not hold up as well (compared to their other compound), but is easier to work with.Being more flesible, cured items pop out more easily.... I know there are better products out there, but i've been using this 'Amazing Resin' for about a year now, and have probably produced 2000 resin castings with it, and am quite happy.... Only caveat; heat the molds up in a micro wave for 30 - 40 seconds immediately before pouring ( this is covered in their instructions) if you are pouring small items, like wheels. It self generates heat to cure completely and small items don't creat enough heat to 'kick' ......'Z'
thanks for recommending Amazing Casting Resin. I've tried Alumalite and Micro Mark and had struggles with air bubbles with both, especially since I do not have a pressure pot. But the Amazing Casting Resin I picked up the other day at your recommendation works excellent! I can now finish this tire project I've been working on. It's great stuff.
Posted 12 January 2013 - 05:34 PM
The easiest way is vertical casting the tyre.
the first thing you need to do is fill the centre where the rim would normally go in.
Use styrene about the same thickness as a coin, if the tyre you are casting is a hollow type you will need to fill this cavity too !
Once the centre is filled glue the tyre to a styrene base and box in the sides to hold the silastic.
One the silastic has set pull the boxing off, pull the base off and you have your mould.
To remove the tyre from the mould make a fine incision either side of where it was glued, be sure to make it parallel to the flow of the tread, not across it, this will insure there is the minimum flash when casting.