Comparison of TT-F-1098 Solvent-Thinned Block Fillers with Water-Thinnable Block Fillers.
CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL
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Failures of paint systems using solvent-based block fillers such as TT-F-1098 to smooth concrete surfaces prior to painting have been reported in two Corps of Engineers Districts. This study evaluated water-thinnable block fillers as a possible alternative to solvent-based block fillers. The evaluation was based on tests of compatibility between the block fillers and various types of topcoats and on accelerated weathering tests. Solvent-based block fillers are adequate for use with some restrictions however, latex block fillers are equal to solvent-based fillers in their compatibility with most topcoats and are superior for use when the topcoats contain strong organic solvents. They are also more resistant to deterioriation caused by ultraviolet light and condensation, are easier to work with, provide fewer vapor problems, and are easier to procure. Latex block fillers are therefore considered a good alternative to solvent-based block fillers.
- Coatings, Colorants and Finishes