CoatOSil MP 200


Market:  ACE Coating, Auto/Trans OEM Coating, Bed Liners, Coatings-Construction, Coatings-Industrial, Coatings-Transportation, Concrete Floor Coating, Construction Coatings, DTM, General Industrial Coating, Primer, Protective/Maintenance Coating, Transportation Coatings
Product Type: Additives
Product Category: Adhesion Promoter, Coupling Agent, Crosslinking Agent, Silanes
Supplier: Momentive
Download TDS

CoatOSil MP 200 silane is an epoxy-functional silane oligomer that may be considered for use as an adhesion promoter or binder in polysulfide, urethane, epoxy, and acrylic caulks, sealants, adhesives, and coatings. The product is a polyfunctional structure bearing gamma-glycidoxy groups, which is an excellent candidate to consider to reduce emissions of methanol upon hydrolysis of the material as compared with monomeric epoxy silanes. It typically aids adhesion promotion and crosslinking of water-borne or solvent-based coatings as well as dispersion of metallic pigments in water-borne systems.

The gamma-glycidoxy propyl epoxide ring available in this silane can react with many different organic functionalities, while the alkoxy silane groups still available on the oligomeric structure typically bond strongly to inorganic substrates. The hydrolytic stability of CoatOSil MP 200 silane can help provide better shelf life than normal monomeric silanes, thus providing better durability in solvent-borne systems. Specific hydrolysis conditions can be applied to hydrolyze the material so CoatOSil MP 200 silane may be considered for use in waterborne systems.

Typical product use level varies from 0.1 wt% to 2 wt% of binder solid content depending on desired performance attributes.

CoatOSil MP 200 Molecular Structure

Features and Benefits of CoatOSil MP 200

  • Improved abrasion and scrub resistance, particularly in highly-filled formulations using silane-reactive fillers such as talc and kaolin (calcined or hydrous)
  • Improved adhesion to concrete, glass, and metals (cold-rolled steel, HDG, and aluminum, etc.)
  • Improved chemical and corrosion resistance
  • Lower alcohol liberation due to the partially hydrolyzed and condensed silane
  • Faster curing rate
  • Improved water and UV resistance
  • Higher hydrolytic stability
  • Faster grafting rate into polymers silane structure

Performance Data

Our Chemists performed additional testing on CoatOSil MP 200 to the below in the Azelis Application Labs. 

CoatOsil MP 200 - Corrosion Resistance

CoatOsil MP 200 in Epoxy and Amine - adhesion test

*Test results, actual results may vary

Learn more on CoatOsil MP 200 and Momentive Silanes for Coating Applications


Properties Typical Impact 
Dry adhesion (cross cut) Improved
Wet adhesion (cross cut after immersion test) Improved
Hardness No Impact
Impact resistance (reverse) Improved
Bending resistance (Conical mandrel) Improved
Corrosion resistance (NSS) Improved


Our chemists are sharing their discoveries made in Azelis CASE application labs! To learn new ways to solve a formulating problem, get ideas, or ask questions, check out our Chemist Collaboration!

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