Poly 75-65 Liquid Rubber

poly-75-65Poly 75-65 liquid polyurethane rubber has a 1A:1B mix ratio and a 35-minute pour time. This rubber is used primarily for making tough, durable molds, form liners and stamps for casting, forming and texturing concrete. Examples include decorative concrete countertops, precast architectural panels, sound barriers, fences, pavers, slabs, patio stones, retaining wall blocks and for virtually all other types of cast stone and GFRC applications.

Molds can also be used to cast plaster, wax, and limited resins and foams with proper release agents. This rubber has high abrasion resistance and long mold life for high volume casting operations.

Poly 75-Series rubber are not UV-resistant; however, if occasional outdoor use is necessary, Poly 75-65 (along with Poly 75-59 & Poly 75-80) perform best and UV resistance can be improved by adding UV additive.


Mix Ratio Shore Hardness Pour Time Cured Color Mixed Viscosity Specific Volume Demold Time
1A:1B A65 35 min. Amber 3,000 cP 27 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 | Sealers & Release Agents Selection Guide

Video Tutorials on YouTube: How to Make a Slate-Textured Concrete Texture Mat with Poly 75-65  |  How to Make a Poured Block Mold of a Stone with Poly 75-65


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