DOWSIL 1201
Harmonization Code : 3404.90.00.00 | Artificial waxes and prepared waxes : Other
Main features
- Adhesion-Promoting Surface Treatment
- Low-Viscosity Adhesive Application
- 1 to 2-Hour Cure Window
Product Description
DOWSIL™ 1201 RTV Prime Coat is a one-part, light yellow silicone primer formulated to enhance the adhesion of SILASTIC™ RTV-3110, RTV-3112, and RTV-3120 Mold-Making Bases to selected substrates. The acetone/toluene-based liquid deposits a thin layer of silane coupling agents and other active ingredients onto prepared surfaces. It can be applied by wiping, dipping, or spraying and typically cures through exposure to atmospheric moisture for 1 to 2 hours at room temperature and 20 to 90% relative humidity. Supported substrates include metals, glass, wood, masonry, and structural plastics.
Key features
- Adhesion-enhancing primer: Formulated to improve the bonding of specified SILASTIC™ RTV mold-making elastomers to supported substrate types.
- Multiple application methods: May be applied in a light, even coat by wiping, dipping, or spraying.
- Room-temperature moisture cure: Typically cures for 1 to 2 hours at room temperature and 20 to 90% relative humidity before silicone application.
Applications / Suitable for
- Priming metals and glass before applying supported SILASTIC™ RTV elastomers
- Priming wood and masonry bonding surfaces
- Priming supported structural plastics
TDS, SDS & Technical Documents
Technical Specifications
Thermal Properties
Additional Information
As-supplied / before-processing properties
Typical as-supplied properties from the technical data sheet. Values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Product form | One-part liquid primer | — | Silane coupling agents and other active ingredients diluted in an acetone/toluene solvent mixture |
| Color | Light yellow | — | As supplied |
| Non-volatile content | 23.32 | % | CTM 0010; 1 hour at 110°C |
| Kinematic viscosity | 1.11 | cSt | CTM 0004; at 25°C |
| Flash point, closed cup | −20 | °C | Equivalent to −4°F |
| Typical primer cure | 1–2 | hours | Room temperature; 20–90% relative humidity; lower temperature or humidity requires longer cure |
| Shelf life | 12 | months | At 25°C; store below 32°C and protect from moisture |
