Release Coatings and Agents
Improve release and lubricity
Release Coating Systems and Agents
Releasing the potential of silicone performance
Silicone release coatings are applied at low coatweights onto a wide range of substrates using many different techniques. The silicone release coatings form a crosslinked non-stick surface useful in protecting pressure-sensitive adhesives until the moment of use, and also enable delivery of many other sticky materials such as bituminous compounds, composite prepregs, and food. They are available in a variety of delivery systems utilizing a range of thermal cure chemistries, such as platinum- or rhodium-catalyzed addition curing or tin-catalyzed condensation curing.
Silicone release agents are used as additives in mold release applications where they enable quicker release of products made in molds, such as tires or food containers. They also provide lubricity and slipperiness in applications such as newspaper presses and conveyor belts that use rollers.
From food and healthcare to graphic arts and labels, silicone release coatings from Dow provide a range of benefits to deliver the right solution for any application. Competitively priced and reliably supplied, they offer:
Unleashing your cure potential
Two thermal cure chemistries for silicone release coating products, to meet all your application needs.
Catalyzed by platinum or rhodium, addition cure chemistry has been successfully applied to solventless, solvent-based, and emulsion coatings.
Offering fast cure at low to moderate temperatures, platinum catalysts have the added ability to maximize bath life within defined temperature ranges.
- Yields faster
- More complete cure at low temperatures
- Less prone to silicon migration
- Non-reversible, non-blocking
- Does not require post cure, making two-sided differential release and in-line applications possible
- More durable coating with more stable and predictable release
- More avenues for controlling performance
- Susceptibility to catalyst poisoning by:
- Organotin salts
- Potential for interaction with acrylics
How is a rhodium-catalyzed addition cure coating unique to Dow?
- Does not interact with most adhesives.
- Excellent acrylic stability
- Relatively difficult to poison
- Less sensitive to substrate inhibition in comparison to platinum-catalyzed coatings
- Cures more slowly and requires a higher
- Not suited for temperature sensitive substrates
- Not suited for food contact applications
Catalyzed by tin, condensation cure chemistry is a cost-effective solution that maintains versatility and stability.
- Coating is robust and resistant to substrate inhibition and catalyst poisoning
- Minimal adhesive interaction
- Necessity for post-cure often rules out two-sided and in-line applications
- Blocking may occur
- Greater potential for silicone migration
- Tin and rubber are mildly interactive - tin catalyzed coatings are less desirable with SBR adhesives
Chemical Manufacturing and Industrial
Technologies and solutions for the next generation.
Films, Tapes and Release Liners
Pressure-sensitive applications including masking tapes, splicing tapes and protective films.
Food and Beverage
Chemistry-based solutions that play an important role in ensuring quality and safety from manufacturing to the kitchen table.
Silicone Release Coatings and Agents
Explore our portfolio of DOWSIL™, SYL-OFF™ branded silicone release coatings and agents – and use filters to narrow by application, ingredient information and regulatory approvals.
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