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Description for Dow Dowsil 20 Release Coating
Release coating for plastics, adhesives, and elastomeric products, solvent dilutable, provides heat stable, polydimethylsiloxane.Brand Dowsil Application Type Release coating 1 Part or 2 Part 1-Part Material Form Liquid Substrate Methacrylates, Silicone glass laminates, Plastics, Polyesters, Polyurethanes, Porous substrates, Phenolics Manufacturer Dow Chemistry Non-carbonizing, High molecular weight silicone resin, Xylene, Polydimethylsiloxane, Stoddard Cure Method Solvent, Heat cure Cure Temperature (°C) 93 to 204 Cure Time (min) 5.00 to 10 Viscosity (cPs) 11 (cSt), Non-oily Color Colorless/ light straw, Colorless/ light straw High Temperature Resistance (°C) Heat stable Can Be Used In Conjunction With These Materials Moldmaking materials, Adhesives, Elastomeric products -
Technical Data for Dow Dowsil 20 Release Coating
Overview
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Application Type
- Coating - Release coating
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1 Part or 2 Part
- 1-Part
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Material Form
- Liquid
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Substrate
- Porous Substrates
- Glass - Silicone glass laminates
- Plastic - Plastics
- Acrylic (PMMA) - Methacrylates
- Polyurethane - Polyurethanes
- Phenolic - Phenolics
- Polyester - Polyesters
- Other - Epoxies, Melamimes, Silicone glass laminates
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Industry
- Industrial - Metal making, Silicone molding compounds, Tubes, Minimum build-up on molds, Minimum build-up on dies
- Furniture / Wood-Working - Wood forming operations
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Chemistry
- Solvent-Based - Xylene, Stoddard
- Other - Non-carbonizing
- Silicone - Polydimethylsiloxane, High molecular weight silicone resin
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Application Method
- Brush - Brushing, Wiping
- Spray - Spraying
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Cure Method
- Solvent
- Heat - Heat cure
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Color
- Clear / Transparent - Colorless/ light straw
- Yellow - Colorless/ light straw
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Can Be Used In Conjunction With These Materials
- Other - Moldmaking materials, Adhesives, Elastomeric products
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Brand
- Dowsil
Specifications
Cure Specs
Cure Temperature (°C) 93 to 204 Cure Time (min) 5.00 to 10 Viscosity (cPs) 11 (cSt), Non-oily Test Method Material Resistance
High Temperature Resistance (°C) Heat stable Other Properties
Specific Gravity 0.93 (g/ml) Test Method Flash Point (°F) 89.6 Test Method Business Information
Shelf Life Details When stored at or below 30°C (86°F) in the original unopened containers, this product has a usable life of 24 months from the date of production. This product is classed as a flammable, with a flash point of 32°C (89.6°F). Handle and store with appropriate precautions. Shelf Life Temperature (°F) <86 Shelf Life Type from the date of production Shelf Life (mon) 24 -
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Best Practices for Dow Dowsil 20 Release Coating
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Surface Preparation
After application, allow the mold surface to dry until completely free of diluent. Because the solvents used to dilute DOWSIL™ 20 Release Coating may be flammable, special care must be taken when applying the dilution to hot surfaces.
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Application
Easy to use
After dilution, DOWSIL™ 20 Release Coating can be applied by spraying, brushing, or wiping. Mold surfaces should be cleaned prior to application. Best parting characteristics are obtained when this product is applied in a very thin film.
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Curing
Although not essential, a heat cure produces better release and increased durability of the parting film. Heating the molds for 5–10 minutes at 93–204°C (200–400°F) is suggested.
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Viscosity Test Methods
Viscosity | Test Method |
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11 (cSt) | Specification Writers: These values are not intended for use in preparing specifications |
Non-oily |
Flash Point Test Methods
Flash Point | Test Method |
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32.0°C | CTM 0021A, closed cup, Specification Writers: These values are not intended for use in preparing specifications. |
Specific Gravity Test Methods
Specific Gravity | Temperature | Test Method |
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0.93 (g/ml) | 25°C | CTM 0001A, Specification Writers: These values are not intended for use in preparing specifications. |