Attained CE Mark EN14592 for Polytops pins (25, 30, 40mm) and nails (40, 50, 65mm)
Studied alternative forms of fastener – Nano Coating Corrosion tests on all types of nails done by UCAS accredited lab. All corroded badly except A4 Stainless Steel nails.
Upgraded A2 to A4 Stainless Steel. Passed all corrosion test. No corrosion complaints ever received.
Feedback from application near coast that after 2 years, the A2 Stainless Steel nails had corrosion.
PVC fascia, soffit & cladding. Added A2 Stainless Steel option for corrosion resistance.
Registered Polytops trademark. Made Polytops pins, nails, screws & rivets in Zinc Plated Steel for internal caravan use.