Poly 74-24 Liquid Rubber

Poly 74-24 Liquid RubberPoly 74-24 is a 1:1 mix by weight or volume, Shore A~25, liquid polyurethane mold rubber which can be poured as supplied or thickened for brush-on applications using Poly Fiber II thickener. This easy-to-use rubber can be used to cast wax, plaster, concrete or resins such as when making cold cast bronze sculptural reproductions. This user-friendly, multi-purpose mold rubber is an excellent candidate for almost every general mold making project.


Mix Ratio Shore Hardness Pour Time Cured Color Mixed Viscosity Specific Volume Demold Time
1A:1B A25 20 min. Amber 2,000 cP 27.5 in³/lb ~16 hr.
Accessories: 74/75 Part C Softener, 74/75 Part X Accelerator, PolyFiber II Thickening Agent, UV Additive, Tietex® Fabric, Poly Purge Aerosol Dry Gas


Product Literature: Technical Bulletin | Safety Data Sheets | Physical Properties Bulletin | Sealer & Release Agent Selection Guide

Video Tutorials:For 74-Series video tutorials, visit the 74-Series page or the Polytek YouTube Channel.


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