Low density rigid 2 part foam used to cast lightweight props or fill voids to add structural integrity.

 Contains no ozone depleting CFC’s or HCFC’s. 

Simple mix ratio of 1:1 by weight. 

The 2 parts are best mixed together by using a paint mixing paddle attached to a drill. Hand mixing is also perfectly fine but it’s worth premixing part A to aerate it before mixing with part B. As soon as both parts have been fully mixed, it should be poured into your mould/cavity before any expansion has begun. 

The foam can be “free risen” meaning the foam can rise if not restricted but for best results, especially if you are casting something with lots of detail, it’s worth restricting the rise so that the foam expands into every crevice. 

Optimal temperature for mixing 2-part foam is 18-23°C , however cure times can vary a lot depending on ambient temperatures and amount of material mixed. As a rule, lower temperatures = slower curing, Higher temperatures = faster curing, small mixtures = slower curing, larger mixtures = faster curing. Top Tip: We have found that warming the mould with a heat gun (warm not scorching!) prior to pouring in the 2 part mixture really helps the foam to develop a smooth ‘skin’.