Alumilite High Strength 1

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Alumilite's High Strength 1 silicone mold making rubber has a higher durometer than the other High Strength silicones from Alumilite but still maintains the exceptional tear streng th which makes it great for one or two piece molds that require a higher hardness. The High Strength 1 measures a 38A shore hardness. The High Strength 1 is a tin base silicone and cures against all different types of clay and substrate without inhibiting. The tin base silicone is a condensation cure and therefore temperature and humidity may affect the cure speed of the rubber. The High Strength 1 has a low viscosity which does not require degassing (always recommended when available) and will pick up the exact detail of your original. Use the High Strength 1 when you need a little more stiffness to your mold but still desire an exceptional tear strength. Use Alumilite's Rubber to Rubber mold release or petroleum jelly when making 2-piece molds when using the High Strength 1 rubber due to it's extremely high tear strength. Specifications: Product Alumilite's High Strength 1 Color Pink Mix Ratio 10:1 by WEIGHT Open Time 45 mins Demold Time 12-18 hours Mixed Viscosity (cps.) 22,000 Specific Gravity 1.15 Shore A Hardness 38 Linear Shrink (%) .3 Tear Strength (ppi) 148 Tensile Strength (psi) 551 Elongation 430% Temperature Resistance (F) -67 to 395 Vacuum Required No Show more