High performance light stabilizer for coatings
In this article we highlight the performances of our Omnistab LS 123. This product is a liquid hindered amine light stabilizer of amino ethers. It provides outstanding light stability in coatings and has a low alkalinity. The burnish disappear, so it can avoid reaction with the acid composition in coatings. And it also prevent colored paint from pulverization. Due to the liquid form, the Omnistab LS 123 is suitable for both waterborne and solvent based coatings.
Applications
Its excellent performance reflect in the following applications:
- Alkyd resin / acrylate air-dry automobile repair paint
- Oxidized alkyd paints and varnishes
- Two-component non-isocyanate coating
- It is easy to emulsify in the water-based coating system and can also be used in water-based coatings
- Synergistic performance with other Light Stabilizers & UV absorbers
Industries
Recommended industries for the high performance light stabilizer: automotive coatings, industrial coatings, decorative coatings, wood coatings and varnishes. Especially the ones with high solid content and acid-catalyzed; such as double-coated metal thermosetting acrylic systems or single-layer thermosetting acrylic varnish and polyester systems.
Recommended combinations
For more comprehensive protection we recommend to combine the light stabilizer with an ultraviolet absorber. For automotive coatings, the combination of Omnistab LS 123 with one of the following absorbers can significantly improve the weather resistance: Omnistab UV 384-2, Omnistab UV 1130, Omnistab UV 928 or Omnistab UV 400. It effectively prevent gloss loss, cracking, color change, bubbles and delamination. In double coating systems, most manufactures use light stabilizers in primers and topcoats. For wood coating, the combination of Omnistab LS 123 and Omnistab UV 384-2 or Omnistab UV 1130 has a good protective effect on air-dry alkyd paint. Light stabilizer mixtures commonly added to the film and decorative paints.
Recommended dosage
Automotive paint and industrial paint: 0.5-2.0%* Omnistab LS 123 + 1.0-3.0% Omnistab UV 1130 / UV 384-2 /UV 928 / UV 400
Decorative coating and wood coating: 0.5-2.0%* Omnistab LS 123 (use alone) or + 1.0-3.0% Omnistab UV 1130 / UV 384-2
*You can determine the optimal dosage by trial (relative to resin solids).
For more technical product details about this Omnistab LS 123, see our product data sheet.
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