It has exceptionally high abrasion resistance making them ideally suited for application on decks and walkways, hulls of icebreakers, tidal and splash zones of steel structures and concrete.
They offer very good adhesion to both steel, blast cleaned to Sa 2½, and concrete
Polyesters are usually two-component coatings applied at normal temperature. The polyester coating have a rather short pot-life and should therefore be applied by a two-component airless spray equipment (Regular airless spray is possible, and in fact, often used). At 20oC the pot life is approximately 40-45 minutes. Styrene free polyester, where the styrene is replaced with vinyltoluene, can be applied down to 5oC when applied with two-component airless spray equipment.
The polyester coatings are dry to handle in 2 hours (at 23oC) and can be applied in a film thickness of 300-1500 microns per coat.
Benefits
- Quick curing
- Variable curing time
- Application with airless spray
- Excellent mechanical strength
- Glass-flakes reduce shrinkage, increase mechanical strength and water resistance.
- Very good chemical resistance
Limitations
- Temperature dependent
- Short pot life
- Recoating interval 2-12 hours
- Bad curing may be experienced on zinc primers and galvanised surfaces.
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