Adhesion Promoter - Manchem® Zircoaluminates
MANCHEM® ZIRCOALUMINATES are a
range of adhesion promoters developed as alternatives to traditional adhesion promoters. Manchem® products
significantly enhance performance characteristics such
as intercoat and substrate-to-coating adhesion.
Manchem® adhesion promoters find use in
many applications, including coatings, specialty rubbers, adhesives
Incorporation of Manchem® Adhesion Promoters Provide The Following
- Improved Wet Adhesion
- Improved Salt Spray And Corrosion Resistance
- Improved Humidity Resistance
- Improved Peel Strength
- Improved Cohesive Film Integrity
- Improved Blister Resistance
Direct-To-Metal Acrylic Primer on Bare Steel - 1000 hr. Salt Spray
The panel on the left is a commercially available direct-to-metal acrylic primer/finish applied to bare steel. The panel on the right is the same primer/finish with Manchem 441 adhesion promoter. After a 1000 hour salt spray test, the coating with Manchem showed no signs of corrosion beyond the scribe while the coating without Manchem exhibited significant corrosion across the entire panel. Click on picture for close-up view.
The bi-functional nature of Manchem® Zircoaluminate adhesion promoters enables them to “bridge” or “couple two or more
species through irreversible chemical interactions. Examples of
such interactions include:
COATING --- ADHESION PROMOTER --- SUBSTRATE
COATING --- ADHESION PROMOTER --- COATING
In the case of coupling a coating to a substrate, the highly metallic nature of zircoaluminates
makes them uniquely reactive with metal surfaces. The inorganic
functional groups chemically interact with the substrate (e.g.
metal) while the organofunctional groups react with the resin
producing a complex network of bridging bonds between substrate
and coating. The result is significantly improved substrate wet
Manchem® Adhesion Promoter - FREE SAMPLE!