TB511 PU Topcoat DTM Semi-gloss is a two component polyurethane topcoat (direct to metal), with the exception of aluminum & galvanized steel substrates.
This topcoat contains special pigments which enhances corrosion protection) with a semi-gloss finish, 55 +/-10 GU/60° this is dependent on color and spray technique.
For a higher level of anti-corrosion performance, we recommend to use of an epoxy primer first.
TB511 is specifically developed for lightindustrial use, application properties enable fast operation with good force dry and air-dry capabilities.
The standard mixing ratio is 80% Binder, 20% colour toner or optional 70% Binder, 30% colour toner for low opacity colours.
All colour toners are chromate and lead free, also providing good UV protection.
Air drying is recommended, force-drying will result in a higher gloss finish.
Selection of hardener, reducer & color, can affect viscosity, flash-off time and thickness, this will also have an influence on the end gloss result too.
Mixing Ratios:
5:1 +10-25% TB511 : AU500 +RS603, RS605, RS607, RS609