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Release Coatings and Agents
Improve release and lubricity
Explore
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.
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Silicone Release Coatings
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Silicone Release Agents
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:
Robust curing below 35 ppm platinum.
In controlling release, cure and coatweight.
Breaking records without misting.
With long bath life, anchorage, and release.
Unleashing your cure potential
Two thermal cure chemistries for silicone release coating products, to meet all your application needs.
Addition cure
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.
Advantages
- 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
Disadvantages
- Susceptibility to catalyst poisoning by:
- Amines
- Sulphides
- Phosphides
- Organotin salts
- Potential for interaction with acrylics
How is a rhodium-catalyzed addition cure coating unique to Dow?
Advantages
- Does not interact with most adhesives.
- Excellent acrylic stability
- Relatively difficult to poison
Disadvantages
- Less sensitive to substrate inhibition in comparison to platinum-catalyzed coatings
- Cures more slowly and requires a higher
temperature - Not suited for temperature sensitive substrates
- Not suited for food contact applications
Condensation Cure
Catalyzed by tin, condensation cure chemistry is a cost-effective solution that maintains versatility and stability.
Advantages
- Coating is robust and resistant to substrate inhibition and catalyst poisoning
- Minimal adhesive interaction
Disadvantages
- 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
Silicone release agents from Dow offer many benefits in industrial, food-contact manufacturing and film and paper coating applications. Their nonstick properties can help enable:
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.
Resources
Silicone Release Coatings Guide: Select the release coating formulation, equipment, and coating technique that is right for your application.
Silicone Coverage and Thickness Guide: Learn how these factors affect release performance.
Complete Curing Guide: Read how to ensure optimal release coating performance.
Silicone Release Agents Selection Guide: Select the best DOWSIL™ or XIAMETER™ release agent for your application.
Discover how we can quickly evaluate many substrates and silicone solutions under varying conditions to keep pace with ever-changing customer and industry needs.
Global pilot coating capabilities for the pressure sensitive market.
Pilot Coater capabilities
Global pilot coating capabilities for PSI
Learn about our global coater resources in North America, Europe and China which enable us to develop new solutions and evaluate current solutions used in the pressure sensitive market on a variety of substrates and with differing chemistries.
Worldwide pilot coating and testing resources
Learn more about Dow’s technology and innovation in the future of silicone release coatings. Our testing resources can help evaluate your coatings and develop new ones.
Coater explained by Dow expert, David Rich
With coater speeds increasing to meet the rising demand for labels, misting poses a major challenge to silicone suppliers and coater operators.
We are committed to connecting you with experts and resources to tackle any challenge.
Address requirements and trends in silicone pressure sensitive release coatings.