I just bought the stuff to make resin parts and I was wondering what is the easiest way to make the molds. What should I use. I was to mass produce jerry cans and the such. Is there a thread somewhere. Point me in the right direction. Thanks in advance.

I don't know what type of mold material you purchased but the mold forms are about the same. You can use cardboard stock. or a cardboard box, or plastic. If the part will be made from a one piece mold , and you mentioned making fuel cans, glue the cans to the bottom sheet of the box (without the handles if possible). Make your sides of the box at least twice as deep as the part that you want to mold. If you are going to mold more than one piece in the same mold, make sure that you have at least 1/2" space between each part(to help the mold from distorting the parts when casted). After you have the mold box made and the parts glued in you will have to seal the parts and inside of the box. This is to prevent the liquid rubber of the mold material from leaking thru. After the sealer is completely dry make sure that you use a mold releashing agent of some type. I'm sure that the product that you purchased came with instructionsand please read them very carefully. The biggest thing is don't be afraid of making mistakes at first. I can tell you first hand that casting resin can sometimes be controlled by "Murphy's Law". I use the Smooth-On products. I have the best results from their products. Good luck. and Keep on modeling..

I saw an article in FSM where the guy used Legos to make his mold box. Apparently the blocks snap together tight enough that you don't have to seal them. And, it was very easy to vary the size of the box. I have never tried it but it looked like a dandy idea...

I just do as Animal does. Lego, in my view, is ok when used for two valves moulds.
Ciao

Here is an article that may help - Not sure what resin product you're using so it may be different and require different molding stuff.
https://armorama.kitmaker.net//features/150

It may be worth some testing too.

Thanks guys. and Slodder, that is the same resin stuff that i have.

I think you'll love the stuff, it's very versatile.
You can make pieces and use it for water .
In this diorama the stumps are resin and the water is the same stuff.

You can even submerge kits in it too - be careful and test - softer plastics and clear parts can have ill affects but for the most part they are fine.

Check out the steering wheel and shifters - no problems.

There's several articles on this subject in the "Features" chapter.
Here's a few :
- https://armorama.kitmaker.net//features/85
- https://armorama.kitmaker.net//features/150

Check out previous threads in THIS forum, too !
If you have specific questions, you can post them here.