1981
SEAC patents polymer headed fasteners
1st June 1981
Registered Polytops trademark. Made Polytops pins, nails, screws & rivets in Zinc Plated Steel for internal caravan use.
1984
Demand for application outdoors
1st May 1984
PVC fascia, soffit & cladding. Added A2 Stainless Steel option for corrosion resistance.
1990
Coastal area corrosion
2nd December 1990
Feedback from application near coast that after 2 years, the A2 Stainless Steel nails had corrosion.
1991
Upgrade to A4 Stainless Steel
5th August 1991
Upgraded A2 to A4 Stainless Steel. Passed all corrosion test. No corrosion complaints ever received.
2014
SEAC commissions Salt Spray Test
18th 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.
2015
Attained CE Mark EN14592
15th April 2015
Attained CE Mark EN14592 for Polytops pins (25, 30, 40mm) and nails (40, 50, 65mm)
