CHT QSil Primer No. 3 Clear, 0.34 kg Pint

Description

CHT USA primer QSil Primer No. 3 Clear is a one-component adhesion promoter for use with compatible silicone elastomers. The colorless to pale-yellow liquid prepares selected glass, aluminum, stainless steel, and silicone surfaces so the applied elastomer can form a more dependable interface. The 0.34 kg pint format suits qualification work, maintenance, moldmaking, and controlled production use.

CHT USA primer compatibility

Use QSil Primer No. 3 Clear only after confirming that the silicone grade, substrate, and service environment are compatible. The clear version is useful where a blue inspection tint would be undesirable. Because primers are system-dependent, a successful result on one silicone or surface finish does not establish performance on another. Run an adhesion test with the actual substrate preparation, primer coverage, cure conditions, and elastomer thickness.

CHT USA primer application

Start with a surface that is clean, dry, and free of dust, oil, release agent, oxidation, and loose material. Apply a thin, uniform coat with a controlled wipe, brush, spray, or other qualified method. Avoid puddles and heavy deposits. Allow the carrier to evaporate and the primed surface to dry before applying silicone. The master product data identifies a 30-minute dry time, but users should confirm the current technical guidance and shop conditions before production use.

• Product type: one-component silicone adhesion primer
• Appearance: clear to slightly yellow
• Package: 0.34 kg pint
• Common substrate families: glass, aluminum, stainless steel, and compatible silicones
• Primary role: promote adhesion between substrate and silicone elastomer
• Application control: thin, even coverage on prepared surfaces

Use suitable ventilation and follow the current safety documentation because the material is flammable. Keep ignition sources away from the work area, close the container promptly, and use appropriate gloves and eye protection.

Browse our adhesive primers and accelerators for related surface-preparation products. Learn about CHT silicone technologies at CHT.

Need Help?

Need help qualifying a primer for your silicone and substrate? Call (800) 220-1966 or email [email protected].