In Stock Casting and melting consumables Castaldo "SuperStretch" compound 30x30 cm. Castaldo 05483 €23.95 SuperStretch compound. Compatible with other molding silicone rubbers.Recommended for all those molds that require many complicated parts. It is able to shape gaps due to its high elasticity. Low contraction of lagoma 1.3%.Vulcanizes at 165º. Add to cart