CAFA-250
Chem-A-Flow Additive
Product #115
Applications
A recoatable high molecular weight polyacrylate, CAFA
250, is designed to allow for small incremental changes
in surface tension. Substrate wetting exhibited by crawling
or beading up of the coating requires the use of more powerful
surface tension modifiers such as silicone or fluorocarbon surfactants
(see SA#1,
RAMA,
HSADA 42 or
HSADA 44).
CAFA 250 at high dosage levels helps to eliminate
these defects without the potential recoat problems. Because
silicone and fluorocarbon surfactants are powerful, their effectiveness
can be described as a tight shaped bell curve. Polyacrylate
flow modifiers can broaden the curve and allow for better quality
control of the coating. Resins include: acrylic, alkyds, epoxies,
phenolic, nitrocellulose lacquers, melamine and isocyanate reactive
systems.
Benefits
• Improves Flow and Leveling
• Increases Mar Resistance
• Recoatable - (High-Heat Stable)
• Prevents Pinholes and Craters
• Promotes Air Release and Inhibits Foam
Recommended Additions
2 lbs. to 6 lbs. per 100 gal. (0.20% to .75% of total weight).
Add to letdown under agitation.
Typical Properties
Visc.: 200 - 400 cps
Color: Clear
Solvents: Aromatic 150
Wt./Gal.: 7.95 lbs./gal
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