Solventless silicone release coatings
Quantity:
Silway 8240
Description Base polymer component for Silway 8240 solventless silicone release coatings
Typical Applications
Release liners for pressure-sensitive adhesive laminations/label stock
Coating for liners of technical adhesive tape
Single-sided and double-sided industrial papers
Non-stick packaging
Key Features& Benefits
Solventless
Fast cure for liner
Provides stable release force
Low platinum (Pt) concentration
Typical Physical Properties
Property | Result |
Appearance | Colorless |
Viscosity at 25°C (77°F) (mPa.s) | 420 |
Chemical nature | Reactive siloxane polymer |
Active ingredients（%) | 100 |
Density at 25°C (77°F)(g/cm3) | 0.97 |
Usage
Silway 8240 Coating must be blended with appropriate crosslinkers and catalysts.
Bath Preparation (Cont.)
Add crosslinker such as Silway 8240 Crosslinker and blend thoroughly.
Add catalyst such as Silway 8240 Catalyst and blend thoroughly again.
The following formulation is recommended as a starting point:
Component | Parts by Weight |
Silway 8240 Coating | 100 |
Silway 8240 Crosslinker | 3.0–3.4 |
Silway 8240 Catalyst | 0.8–1.0 |
4. Optional to add HRA or LRA to modify release force performance.
Bath Life
The life of the formulated bath viscosity varies considerably with the specific formulation, and the temperature of the surroundings. Under 25°C, the bath should still be usable within 6 hours.
Handling Precautions
Direct eye or skin contact may cause slight irritation, which can be relieved by flushing the eye with water for 15 minutes. It is recommended that safety glasses and rubber or plastic gloves be worn when handling this product.
Usable Life And Storage
When stored at or below 30°C (86°F) in the original unopened containers, this product has a usual life of 24 months from the data of production.
Packaging
200L drum or 1000L IBC drum
Limitations
This product is neither tested nor represented as suitable for medical or pharmaceutical uses.
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