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HCRA 4120 Silicone Gum Heat Cure
HCR (High Consistency Rubber) 25 Shore A Durometer
Platinum Silicone Gum High Consistency Rubber, by it's nature has the highest physical properties than our
other Silicone Elastomers. HCR Silicones also have the benefit of being dimensionally
stable with very low to no shrinkage. Since it is a gum rubber you can actually
sculpt your piece directly into the silicone itself. HCR's also bond well to
most substrates making it a great laminate, it also has a long 6 hour working
time in an optimal 65°F work space. HCR silicones must be heated to reach full
Parts A & B are a series of two-part platinum-catalyzed
silicone elastomers. Each elastomer is supplied as a two-part kit (Part A &
Part B), equal portions of which must be thoroughly blended together prior to
A two-roll mill is used for the blending process and coloring process.Find our two roll mills here