NaturForm™ 60-R Molding Latex Rubber

Polytek® NaturForm™ 60-R Molding Latex Rubber is a blue, 58-62% solids natural latex with internal mold release that assists in releasing concrete and other materials from the finished latex mold. This rubber has excellent tear strength and elongation properties and can be brushed or sprayed with suitable equipment. After multiple coats, it builds up to form a tough rubber blanket mold that should be backed with a supportive mold shell.

Molds made with natural latex are often used for casting plaster, concrete (e.g., veneer stone manufacturing and statuary) and limited casting with some resins.

For a 58-62% solids latex without the internal release, select NaturForm™ 60 Molding Latex Rubber. For a high solids (70-74%) option, select NaturForm™ 74 Molding Latex Rubber

NOTES: Exposure to temperatures <40°F and >80°F may damage latex, causing irreversible coagulation. DO NOT ALLOW TO FREEZE. Always store and use at room temperature.

SHIPPING: Latex cannot be shipped in temperatures near or below 32°F. Expedited Shipping Service is available at an additional cost, but cannot be purchased online. Please call Polytek Customer Service (1-800-858-5990) for more information. 

WARNING: This product can expose you to chemicals including Cadmium, Diethanolamine and o-Phenylphenate, sodium which are known to the State of California to cause cancer and/or birth defects. For more information, go to


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Technical Specifications

Cured Color:
Percent Solids:
Density of Liquid Latex:
8.15 lb/gal
5000-7000 cP
Read the NaturForm Technical Bulletin for detailed mold making instructions.
Shelf Life & Storage of Liquid Latex:
Use liquid latex within three months. For best results, store products in unopened containers at room temperature (60-90°F). Exposure to temperatures <45°F and >80°F may damage latex, causing irreversible coagulation. DO NOT ALLOW TO FREEZE.

More Information

Material Calculator

Technical Bulletin

Safety Data Sheet