Urethane Foam Mold Making

Polytek development corp.

Urethane foam mold making.

Silicone molds are the best for casting foam replicas. 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. The molds are for animal ear shapes it s a long story and they need to be squishy and light weight. 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.

Smooth on manufactures industry leading two component materials such as silicone urethane rubber urethane plastic urethane foam epoxy resin epoxy coatings and adhesives. This video segment will show you how to make a simple urethane mold using tap urethane rtv system. 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. The injection method involves shooting the material into a mold at a very high speed.

Aeromarine products is a premier supplier of epoxy resin products urethane foam mold making supplies casting resins. Casting flexible polyurethane foam. Polyurethane elastomers and casting resins silicones epoxies and latex. Higher densities can be made by restricting the expansion in closed molds.

Search by product type polytek supplies materials to companies in industrial construction entertainment fine arts and technology sectors. This product is a liquid two component polyurethane system that forms rigid foam with a nominal density of 2 12 lbs. The material shot into the mold is either in the form of liquid or in the form of hardened polyurethane droplets. However if you have to use a foam made of another material be sure to coat it in liquid wax.

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. Injecting liquid into the mold allows for a wide variety of design capabilities but it is only conducive to making smaller parts. Foam it series castable rigid urethane foam. That can be used for low density structural or flotation applications.

Is a leading manufacturer of specialty polymers including. Foam it castable urethane foams will expand many times their original volume when mixed and poured.