CoatOSil® 7001 copolymer is an additive for improved flow and leveling of solvent-borne two-component acrylic-polyol isocyanate cured coatings. When this product is incorporated as a flow and leveling additive, the appearance and distinctness of image (DOI) of the clearcoat is typically excellent, compared to the current commercial additives used.

Incorporation of 0.05% to 0.10%wt CoatOSil 7001 copolymer into the polyol resin solids portion of a solvent-borne, two-component acrylic polyol clearcoat formulation, cured with a polyisocyanate, can improve the appearance of the final product as viewed by the customer.

CoatOSil 7001 silicone-polyether block copolymer is an excellent candidate to consider for use as a flow and leveling additive in acrylic-polyol resin formulations for monocoat and clearcoat formulations.

To learn more about Momentive Silanes for Coating Applications, check out the Momentive Paint & Coatings Brochure!

Features & Benefits

• Greater distinctness of image (DOI)
• Improved clarity of final film
• Improved film coalescence
• Reduces long wavelength wavescan values
• Gloss and slip, low viscosity

Performance Data

Clearcoat samples were spray applied as a film build gradient over black basecoated glass substrate to evaluate the coalescence, flow and leveling performance on very smooth surfaces. The three samples tested were 0.00%wt additive, 0.06%wt CoatOSil 7001 copolymer and 0.06% of a commercially available flow additive, based on a 100 gram total resin solids basis.

Additionally, these clearcoat samples were applied directly over the glass substrate to evaluate flow and leveling over a distinctly different substrate.

*Test results, actual results may vary

Properties