Rheology Control of High-Solids Coatings
Type: White Papers
Product Line: Silicas and Aluminas
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Abstract:
This technical article was originally printed in Modern Paint and Coating magazine. It covers the changing of paint formulations to high-solids and the critical need for thixotropes. Three types of thixotropes—fumed silica,
precipitated silica and organoclay—were used to impart anti-sag and anti-settling properties to a high-solids polyester baking enamel. Each thixotrope was evaluated in a loading ladder to establish its optimum anti-sag
performance level. Once these had been established, the viscosity, gloss and anti-settling performance of each thixotrope level were measured. Formulation specifications and the test results are covered in detail.
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Regulatory
- EU Directive 2002/95/EC(RoHS): Silicas and Aluminas
- Toy Norm EN (71-3) - CAB-O-SIL® Untreated Fumed Silicas
- EU Directive 76/769/EEC(PFOS): CAB-O-SIL™ TGC-190 and TGC-390
- Taiwan ECS Nomination: Untreated Silica Products
- Taiwan ECS Nomination: Untreated Alumina Products
- Taiwan ECS Nomination: Surface Treated Silica Products
- U.S. FDA Food Additive Applications - CAB-O-SPERSE® Untreated Fumed Silica
- EU Directive 76/769/EEC Perfluorooctane Sulfonates (PFOS) - Silicas and Aluminas
- IMDS International List of Reportable Substances - Silicas and Aluminas
- U.S. Toxic Substance Control Act (TSCA): CAB-O-SIL® Products
