Tinuvin 144 Bis (1,2,2,6,6-pentamethyl-4-piperidinyl)-[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]butylmalonate 63843-89-0 Ciba Light stabilizer / UV-absorber >> Hindered amines (HALS) Coatings >> Powder Coatings Automotive OEM Automotive refinishing Coil Coating TINUVIN 144 is a light stabilizer of the hindered amine class (HALS) and also contains an antioxidant moiety of the sterically hindered phenol type. Its efficiency provides significantly extended life time to coatings by minimizing paint defects such as cracking and loss of gloss. TINUVIN 144 also shows triboelectric charging activity for powder coatings. %LV (1,2,2,6,6-pentamethyl-4-piperidinyl)-[[3,5-bis(1,1-dimethylethyl)-4- hydroxyphenyl]methyl]butylmalonate Molecular weight: 685 CAS No. 63843-89-0 TINUVIN 144 is recommended for applications such as: · automotive coatings · coil coatings · powder coatings. The performance of TINUVIN 144 can be significantly improved when used in combination with a UV absorber such as recommended below. These synergistic combinations give superior protection against gloss reduction, cracking, blistering delamination and color change in automotive coatings. TINUVIN 144 can also reduce yellowing caused by overbake. The light stabilizers may be added in two coat automotive finishes to the base and clear coat. However, according to our experience the optimum protection is achieved by adding the light stabilizer to the topcoat. Possible interactions of TINUVIN 144 with paint ingredients such as acid catalysts should be carefully evaluated. In powder coatings, TINUVIN 144 significantly improves triboelectric charging, which in turn results in: · improved transfer efficiency of the triboelectric coating process and a reduced amount of overspray to be recycled · improved powder adhesion to the workpiece · enhanced wrap-around on spraying · easier sieving of powders for both corona and triboelectric application during manufacture and use. The amount of TINUVIN 144 required for optimum performance should be determined in trials covering a concentration range. Light stabilizer of the hindered amine class (HALS) and also contains an antioxidant moiety of the sterically hindered phenol type. Provides significantly extended life time to coatings by minimizing paint defects such as cracking and loss of gloss. Shows triboelectric charging activity for powder coatings. Recommended for automotive coatings, coil coatings, powder coatings. Can be significantly improved when used in combination with a UV absorber. These synergistic combinations give superior protection against gloss reduction, cracking, blistering delamination and color change in automotive coatings. Can also reduce yellowing caused by overbake. The light stabilizers may be added in two coat automotive finishes to the base and clear coat. However, according to our experience the optimum protection is achieved by adding the light stabilizer to the topcoat. Possible interactions with paint ingredients such as acid catalysts should be carefully evaluated. In powder coatings,results in improved transfer efficiency of the triboelectric coating process and a reduced amount of overspray to be recycled, improved powder adhesion to the workpiece, enhanced wrap-around on spraying, easier sieving of powders for both corona and triboelectric application during manufacture and use. Recommended usage level: 0.5-1.0% based on weight percent binder solids (+ 1.0-3.0% UV absorber) for clear coats and one coat metallic shades, 1-2% (+ 1-2% UV absorber) for one coat solid shades.