Yung-Chi Yang, Steven Lee and Dr. Yao-Hsing Huang, Everlight Chemical Industrial Corporation12.08.11
High solids, powder, waterborne and UV curable coatings—the “green” coatings—have been developed to replace conventional high VOC and solvent-based coatings. Although the latest technology has overcome the disadvantages of traditional solvent-based coatings, light stabilizers in green coatings still play an important role helping to avoid degradation from sun light exposure and improve weathering stability. Everlight has developed several products specifically for green coatings.
Green coatings and light stabilizers
Green coatings can be as diversified as high-solids, powder, waterborne and UV curable coatings and so on. They are designed to eliminate the release of VOCs from conventional solvent-based coatings.
The cause of coating degradation such as discoloration, delamination, loss of gloss, cracking and chalking is due to the chromophores, or impurity content, found in the material triggered by UV light, which is damaging. Therefore, UV absorbers and light stabilizers are both recommended in order to prevent coating decomposition.
Light stabilizers can be divide
Green coatings and light stabilizers
Green coatings can be as diversified as high-solids, powder, waterborne and UV curable coatings and so on. They are designed to eliminate the release of VOCs from conventional solvent-based coatings.
The cause of coating degradation such as discoloration, delamination, loss of gloss, cracking and chalking is due to the chromophores, or impurity content, found in the material triggered by UV light, which is damaging. Therefore, UV absorbers and light stabilizers are both recommended in order to prevent coating decomposition.
Light stabilizers can be divide
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