RTV-3625 Moldmaking Silicone Rubber

Popular Specifications

Shore Hardness

Tear Strength




120 ppi




8125 ppi


Elkem RTV-3625 is a low-viscosity, 25 Shore A, tin-catalyzed, room-temperature curing silicone rubber. It is available with two catalysts. The Hi-Pro Green catalyst will provide very low shrink with a 16-18 hour demold, while Hi-Pro Blue allows demolding in 4 hours with a slightly higher shrink.

SKU Description   UM Thickness Width Length Height Board ft. Net Wt. Diameter Grade Grit Plys Radius SPB Ship Note Min. Qty Pcs/Box Pcs/Bundle Winding Ft/Box Handle Len Head Diam Head Len Mfg. # Qty
054942KG RTV 3625 - 20 kg (Base Only) SO EA 44.1
054878KG Hi-Pro Blue - 2 kg (Catalyst Only) EA 4.4
054926KG RTV 3625 - 200 kg (Base Only) SO EA 440.9 FRT
055215KG Hi-Pro Green - 20 kg (Catalyst Only) EA 44.1
054879KG Hi-Pro Blue - 20 kg (Catalyst Only) EA 44.1

Click Here to View Our Closeout Page

Please Note:
Liquid products are sold by weight, not volume.
SPB = Sheets per Box

Shipping and Handling:
Freeman charges standard published UPS/FedEx shipping rates (unless freight is specified). All orders under $25 are subject to a $5 small order fee. International orders are subject to a $250 minimum order.

Description Legend:
 = Special Order. Minimum quantities and extended lead times may apply.
 = Closeout List. Available at special pricing on our closeout list. Subject to prior sale.
 = Web Order Discounts. These items are discounted for orders completed through the website only. The discount will be applied after you request your quote, or add to cart and complete your order on the website.
 = Favorites Button. When logged in, you can select your favorite items to be viewed later in the favorites tab under "My Account"
 = Your Favorited Items. To view your favorited items, look under the "My Account" tab

Ship Note Legend:
HAZ-G = Hazardous material, cannot ship air, up to $33 surcharge applied for each package shipped ground within the US.
HAZ-A = Hazardous material, cannot ship air, no surcharge for ground shipping.
HAZ-T = Toxic material, must be sent by freight carrier.
FRT = must be sent by freight carrier due to size, weight, or hazardous classification.