RenCast 6403-1 /Ren 6403-3 High Tear Strength, Flexible Mold Making Polyurethane

Popular Specifications

800 cps | 85-90A Shore Hardness
20 Min Gel Time
Formerly RenCast 6403-3. Ideal for durable parts such as impellers, rollers, gears and wheels, this off-white elastomer features low viscosity, fast cure, high tensile strength and good load recovery. It is castable up to 1/2" in thickness.

Two 5 gallon pails of hardener are required per each 5 gallon pail of resin to provide the correct mix ratio.

Please note: Material may crystallize if exposed to freezing temperatures. Please click here for more information, guidelines and corrective action.

RenCast 6403 may be thickened for use as a surface coat using RenCast 6400-1 Resin as a third component. Please see the Technical Bulletin "Procedure for Surface Coat Application" for instructions.

Formula Change Information
Due to discontinuation of a raw material, the RenCast 6403 formulation has changed. Information on this change can be found here. Our testing has found the new version to be functionally identical. Please contact our technical services department for further information or clarification.

Catalog Number Description   Qty  
056931 RenCast 6403-3 - Gallon Unit
056931CO RenCast 6403-3 - Gallon Unit (Expired, Catalyzes Fine) CO
056537 RenCast 6403-1 - 5 Gallon (Resin Only)
056930 Ren 6403-3 - 5 Gallon (Hardener Only, 2 required) SO

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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.

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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.