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Kabasph®SCA-9156X is a poly-urea modified acrylic resin with fine needle-like poly-urea crystals that form hydrogen bonds, providing strong thixotropy and anti-sagging performance. For automotive OEM acrylic-amino top clearcoats, its network prevents vertical sagging at rest, breaks down under shear for flow/leveling, then reforms. Amine value ≤8 mgKOH/g, fineness ≤15 μm, recommended dosage 10–15% on total formulation—suitable for high-quality automotive coatings.
Key Benefits
l Rheology control: Prevents sagging while maintaining excellent leveling, with no significant reduction in solids content.
l Pigmented systems: Helps prevent settling, flocculation, and flooding.
l Metallic systems: Improves metallic flake orientation.
l Melamine baking paints: SCA is “built into” the film during baking, so the original SCA is no longer present in the cured film, which retains optimum gloss and transparency.
l Film properties: No adverse effect on solvent resistance, chemical resistance, or mechanical properties.
l High efficiency: As part of the Kabasph® high-efficiency SCA resin range, it offers high SCA active content. Recommended dosage can be only about 50–70% of conventional SCA resins on the market, which typically have an active content of 2–3%, helping reduce customers’ operating costs.
l Compared with conventional anti-sagging agents such as silicates, waxes, and organic clays, SCA resins provide rheology control without sacrificing gloss, transparency, or film properties.
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