DOWSIL 20

DOWSIL™ 20 Release Coating is a solvent-based silicone release coating formulated for plastics, adhesives, and elastomeric products. The colorless to light-straw liquid contains polydimethylsiloxane and high-molecular-weight silicone resin and forms a durable, non-oily parting film on prepared mold surfaces. It can be diluted with suitable aliphatic or aromatic hydrocarbon solvents and applied by spraying, brushing, or wiping. In most cases, one application supports release through multiple molding cycles while minimizing buildup on molds and dies. An optional heat treatment of 5 to 10 minutes at 93 to 204°C can improve release and film durability.

Key features

• Durable release film: Forms a heat-stable, non-carbonizing, non-oily parting layer that can provide release through numerous molding cycles.
• Solvent-dilutable application: May be diluted for application control and applied to cleaned mold surfaces by spraying, brushing, or wiping.
• Low mold buildup: Supports release with minimal accumulation on molds and dies and does not discolor molded parts.

Applications / Suitable for

• Molding epoxies, melamines, methacrylates, phenolics, polyesters, and polyurethanes
• Releasing silicone-glass laminates, tubes, and parts made from silicone molding compounds
• Wood-forming operations, metalworking, and rubber-gasket production