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CSL Silicones CSL944 Multi-Surface Primer

CSL Silicones CSL944 Multi-Surface Primer is a one-component resin solution system designed to promote the adhesion of silicone sealants to masonry surfaces. CSL944 is designed to impart optimum silicone sealant adhesion to porous surfaces (i.e. concrete, brick, wood, some plastics, etc.). Not intended for use with metal.

Product Type: 1K (1 component) Coating, Primer

Compatible Substrates & Surfaces: Brick, Concrete, Plastics, Wood

Features: Excellent Substrate Adhesion

Application Method: Brush, Spray

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Identification & Functionality

Type
Dilute Solution of Reactive Materials in Solvent

Features & Benefits

Ready-to-Use Product Features
Features
  • Suitable for multiple surfaces and substrates.
  • Easy to apply by spray or brush.
  • Suitable for use with all CSL silicone sealants.

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Typical Uses
  • Suitable for multiple surfaces and substrates.
  • Easy to apply by spray or brush.
  • Suitable for use with all CSL silicone sealants.
Surface Preparation

Thoroughly clean and degrease the surface by using solvent and a clean lint-free cloth. CSL944 might stain some substrates and should be checked before use.

Application

For best results, the following steps should be taken:

  • Thoroughly clean and degrease the surface as above.
  • After the surface has dried, apply a coat of CSL944 primer by wiping it down with a clean cloth or brush.
  • A thin film of primer will normally give the best adhesion.
  • At normal temperature and humidity CSL944 should be allowed to air dry for 15 - 30 minutes.
  • Apply CSL RTV Adhesive/Sealant.

Properties

Color
Physical Form
Appearance
Liquid
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity (As Supplied)0.87--
Flash Point (As Supplied)70.0°F-

Regulatory & Compliance

Certifications & Compliance

Safety & Health

Safety Precautions

CSL944 is flammable. Keep away from open flame and heat. Use with adequate ventilation and avoid prolonged breathing of vapors. Prolonged or repeated skin contact might cause irritation. In the event of eye contact flush well with water and consult a physician.

All work involving the application and use of this product should be performed in compliance with all relevant national, Health, Safety & Environmental standards & regulations.

Packaging & Availability

Packaging Type
Packaging

CSL944 is supplied in 3.8L (1 US gallon) cans, 19L (5 US gallon) pails, and 189L (50 US gallon) drums.

Storage & Handling

Storage

CSL944 Primer should always have the container cap replaced immediately after use. Containers should be kept tightly sealed when not in use.

CSL944, when stored in original, unopened container in dry, shaded conditions, away from sources of heat or ignition, and stored below 25°C (77°F), has a shelf life of 12 months from date of manufacture.