SEAC patents polymer headed fasteners1st June 1981
Registered Polytops trademark. Made Polytops pins, nails, screws & rivets in Zinc Plated Steel for internal caravan use.
Demand for application outdoors1st May 1984
PVC fascia, soffit & cladding. Added A2 Stainless Steel option for corrosion resistance.
Coastal area corrosion2nd December 1990
Feedback from application near coast that after 2 years, the A2 Stainless Steel nails had corrosion.
Upgrade to A4 Stainless Steel5th August 1991
Upgraded A2 to A4 Stainless Steel. Passed all corrosion test. No corrosion complaints ever received.
SEAC commissions Salt Spray Test18th March 2014
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.
Attained CE Mark EN1459215th April 2015
Attained CE Mark EN14592 for Polytops pins (25, 30, 40mm) and nails (40, 50, 65mm)