Urethane Foam Mold Making

I have been making a series of 3d printed molds recently see making a 3d printed mold and figured i should explain how i m doing the casting.

Urethane foam mold making.

Foam it expanding foams are easy to use and cure rigid and strong they can be used as a lightweight casting material backfill material for encapsulation or to make hollow castings. Casting flexible polyurethane foam. This will keep it form sticking too much. However if you have to use a foam made of another material be sure to coat it in liquid wax.

It is a compilation of past high profile concrete mold making projects and also features a never before seen project. Large array of epoxy resin products. The material shot into the mold is either in the form of liquid or in the form of hardened polyurethane droplets. Foam it castable urethane foams will expand many times their original volume when mixed and poured.

This video segment will show you how to make a simple urethane mold using tap urethane rtv system. The molds are for animal ear shapes it s a long story and they need to be squishy and light weight. Silicone molds are the best for casting foam replicas. Foam it series castable rigid urethane foam.

Injecting liquid into the mold allows for a wide variety of design capabilities but it is only conducive to making smaller parts. Smooth on manufactures industry leading two component materials such as silicone urethane rubber urethane plastic urethane foam epoxy resin epoxy coatings and adhesives. Polytek development corp. Aeromarine products is a premier supplier of epoxy resin products urethane foam mold making supplies casting resins.

Search by product type polytek supplies materials to companies in industrial construction entertainment fine arts and technology sectors. Higher densities can be made by restricting the expansion in closed molds. The injection method involves shooting the material into a mold at a very high speed. Silicone s slick surface means that the foam will not stick to it allowing you to easily demold your final piece without damaging the foam.

Foam it 3 4 5 8 10 10 slow 15 26 are expanding water blown liquid polyurethane foams in 3 4 5 8 10 15 and 26 pound densities. Polyurethane elastomers and casting resins silicones epoxies and latex.