Swimming Pools Blue ISO-NPG Polyester Topcoat
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ISO-NPG Topcoat is based on premium isophthalic-neopentylglycol polyester resin and is especially suited for products exposed to water and less aggressive chemicals at varying temperatures.
Key applications for ISO-NPG polyester topcoats includes swimming pools, marine, sanitary articles, wind energy, automotive bodywork etc.

ISO-NPG Topcoat is based on premium isophthalic-neopentylglycol polyester resin and is especially suited for products exposed to water and less aggressive chemicals at varying temperatures.
Key applications for ISO-NPG polyester topcoats includes swimming pools, marine, sanitary articles, wind energy, automotive bodywork etc.
Features
- Based on a premium ISO/NPG with good mechanical properties
- Voc content below 30% for a white colour
- Excellent application properties
- Excellent curing properties
- Easy to sand and repair
Benefits
- Styrene emission reduced by 50 % compared to conventional IS/NPG topcoats
- Excellent colour stability and durable gloss after UV exposure
- Processing robustness enables high quality manufacturing under different external temperatures
- Superior air release properties
- Easy flow and leveling
- Available in both spray and brush versions
- Available on the Polycolour system (quick tinting system)
- Available in approximately 7000 colours
Approvals
- Det Norske Veritas (DnV)
Gel time with 1,5% of Luperox K1S (X-8) catalyst: 10-25 min.
Heat distortion temperature: 90 ºC.
Type of supply
ISO-NPG Polyester Topcoat Swimming Pools Blue x 1 kg, supplied with 20 g of MEKP catalyst
ISO-NPG Polyester Topcoat Swimming Pools Blue x 5 kg, supplied with 100 g of MEKP catalyst
ISO-NPG Polyester Topcoat Swimming Pools Blue x 20 kg, supplied with 0.5 kg of MEKP catalyst
A gelcoat should not be applied over an old gelcoat as it will peel off over time. Even if you sand the old gelcoat. To apply a gelcoat/topcota, you would need to remove the old gelcoat and then apply a new resin and fiber laminate. Another option would be to sand the old gelcoat, then apply an epoxy primer and finally 2-3 coats of 100 g/m2 each of a high-resistance polyurethane paint.