Precast Concrete - Stone Veneer

Manufacture flexible molds for the high-volume production of veneer stone using Polytek® polyurethane, silicone, or latex liquid mold materials

Polytek® liquid mold rubbers are the mold material of choice for high-volume veneer stone production (manual or automated manufacturing). These two-component mold rubbers capture excellent surface detail, offer exceptional dimensional stability and have unmatched lifetime and durability compared to hot melt and polypropylene systems.

Molds made from these room temperature curing systems can be completed in a much shorter timeframe (~16 hour demold) compared to latex rubber molds. When properly maintained, these molds can last for years and produce thousands of stones.

Explore popular product options below:

Popular Polyurethane Products:

Poly 74-20 Liquid Rubber

A soft polyurethane rubber popular for multi-cavity molds. Can be thickened with PolyFiber II or Fumed Silica to make brush-on molds.

Poly 74-45 Liquid Rubber

A mid-range hardness polyurethane rubber popular for panelized systems. Can be thickened with PolyFiber II or Fumed Silica to make brush-on molds.

Browse All Polyurethane Rubbers

Learn more or browse all of Polytek's room temperature curing polyurethane rubbers below. These two-part materials can be poured, brushed or sprayed to make high-performance molds.

Popular Silicone Products:

PlatSil® 73-29 Silicone Rubber

A medium hardness (Shore A30), platinum-cured silicone rubber that does not require form release. Can be thickened with PlatThix Liquid Thickener or Fumed Silica to make brush-on molds.

PlatSil® HTS-25 Silicone Rubber

PlatSil® HTS-25 Silicone Rubber is a high-performance, platinum-catalyzed silicone with excellent tear strength, tensile strength and elongation properties.

PlatSil® HTS-25 Fast Silicone Rubber

PlatSil® HTS-25 Fast Silicone Rubber is a high-performance, platinum-catalyzed silicone with excellent tear strength, tensile strength and elongation properties. This silicone features a fast demold time of ~3 hours for quick turnaround.

PlatSil® HTS-40 Silicone Rubber

PlatSil® HTS-40 Silicone Rubber is a high-performance, platinum-catalyzed silicone with excellent tear strength, tensile strength and elongation properties.

Browse All Platinum-Cured Silicone Rubbers

Learn more or browse all of Polytek's room temperature curing, platinum-cured silicone rubbers below.

Popular Latex Products:

NaturForm™ 60 Molding Latex Rubber

Polytek® NaturForm™ 60 Molding Latex Rubber is a 58-62% solids natural latex with excellent tear strength and elongation properties.

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.

NaturForm™ 74 Molding Latex Rubber

Polytek® NaturForm™ 74 Molding Latex Rubber is a high solids (70-74%) natural latex with excellent tear strength and elongation properties.

NaturForm™ 74-R Molding Latex Rubber

Polytek® NaturForm™ 74-R Molding Latex Rubber is a high solids (70-74%) natural latex with internal mold release that assists in releasing concrete and other materials from the finished latex mold.

Application Examples

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