● Competitive Prices ● Small and Large Quantities ● Rapid Reliable Free Delivery
High performance topcoats for aggressive environments where colour and gloss retention is critical


  • Excellent colour and gloss retention
  • Easy to apply by brush, roller or spray
  • Direct to metal options
  • High solids, low solvent
  • High build products
  • Isocyanate free options
  • Topcoats made to order in an extensive colour range


  • Norsok system 1, 2B, 5A, 6A-6B
  • Network Rail N1, N2, N4, N9, N13
  • Network Rail M20, M21, M24, M34
  • Highways Item 167, 168, 169 and 185

Hardtop High Performance Polyurethanes

A range of two component chemically curing aliphatic acrylic polyurethane and polysiloxane topcoats. Hardtop products exhibit excellent chemical resistance colour and gloss retention in aggressive atmospheric environments with high Corrosivity C5M (ISO 12944-2). They may be applied over most epoxy primers and intermediates as a final coat in a multicoat high performance system. Certified for low spread of flame according to IMO/Solas directive and BS476 Part 6. Selected products are FDA Food compliant for dry solids.

Recommended for steelwork in offshore environments, refineries, power plants, bridges, external buildings, industrial structures and equipment. In marine applications Hardtop is ideal for topside, deck and the superstructure. Hardtop HB is suitable for application to plastic building products. Hardtop Flexi is a flexible, single coat, direct to metal primer finish. Hardtop CA is an isocyanate free acrylic polyurethane. Hardtop Optima is an isocyanate free polysiloxane topcoat with outstanding colour and gloss retention in extreme environments.

All topcoats are available in an extensive range of RAL and BS colours, made to order, for delivery next working day.

Refer to separate Technical data sheet for each variant.


Technical DataHardtop AXHardtop CAHardtop HBHardtop FlexiHardtop XPHardtop Optima
Gloss Level Gloss Gloss Matt Gloss Gloss High Gloss
 Vol Solids 63% 60% 50% 64% 63% 76%
 DFT microns 50-100 60-125 60-100 50-150 40-80 60-100
 Surface Dry 23c 1hr 2.5hrs 2hrs 1.5hrs 3hrs 3hrs



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