RenCast 6443 Semi-Rigid Polyurethane


Popular Specifications

2,500 cps
95A Shore Hardness
19 min. Gel Time
RenCast 6443 is light amber in color, cures semi-rigid in mass, and is flexible in thin cross-sections. This material is used for foundry patterns and core boxes because it features good abrasion resistance and is moisture tolerant during casting. It is castable up to 2" in thickness.

RenCast 6443 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.

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



Catalog Number Description   Qty  
056545 RenCast 6443 - Gallon Unit
056546 RenCast 6443 - 5 Gallon (Resin Only)
056547 RenCast 6443 - 5 Gallon (Hardener Only)

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

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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.
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