Crosile® 7697 Solvent-Free PET Adhesion Promoter Silane

Crosile® 7697 is a solvent-free anchoring silane coupling agent that can be directly added to solvent-free silicone release systems, significantly improving the adhesion of silicone coatings to untreated PET films—eco-friendly, highly efficient, and cost-effective.

Item NO.:
Crosile® 7697

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Crosile® 7697: Solvent-Free PET-Anchoring Silane – One Coat, Firm Grip!

Description:

Specifications

Properties	Target Values(Spec, Limits)
Appearance	Light yellow Liquid
Density (25 ℃, g/cm³)	1.11-1.12
Viscosity (25℃, mpas)	2-8
Flash Point ℃	51
Refractive Index (25°C)	1.42-1.43

Crosile-7697 Adhesion Promoter Application:

1. Release Films

PET liner needs no primer; apply 0.8–1.2 g/m² silicone + 0.5–1 phr Crosile® 7697 Anchor inline. Anchor strength rises 40–60 %, meeting high-speed label and electronics-die-cut demands without silicone transfer.

2. Release Papers/Glassine

For low-surface-energy glassine or super-calendered kraft, Crosile® 7697 Anchor reduces silicone penetration and keeps peel force stable at 8–12 g/cm—ideal for medical tapes and security labels.

3. Electronics/Optical Protection Films

In solvent-free, low-haze formulas Crosile® 7697 Anchor bonds silicone tightly to PET, survives 180 °C for 30 min without blistering or migration, and serves as a carrier for OCA optical adhesives.

4. Functional Composite Films

Blended with fluorosilicone release agents, Crosile® 7697 Anchor creates ultra-light peel (2–5 g/in) fluorosilicone coatings that still maintain high anchorage, suitable for 5G high-frequency tapes and EV battery insulation films.

In short, whenever you need a solvent-free, primer-free silicone release layer to anchor firmly to PET or paper, choose Crosile® 7697 Anchor.

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