Technical Tests on Polytops

Polytop® Pin & Nail Strength resistance pull out tests

sample ave pull out force Max pull out force Min pull out force
25mm Pin 68kg 75kg 57kg
40mm Nail 140kg 168kg 124kg
65mm Nail 295kg 315kg 275kg

technical-tests-1

Rigorous tests are done by independent bodies including Loughborough University to ensure Polytops perform to the highest standard of quality. You can find pull out tests & torque test data on this page.

The tests were conducted using calibrated torque wrenches S/No. TF/100 (1-35 lbs.in.) and S/No. TF99 (240 lbs.in.)

Polytop® screw torque test

substrate / sample  pilot hole required torque failed torque
wood end grain 8 gauge x 12mm 2.5mm 0.7 n.m. 3.6 N.m.
wood end grain 8 gauge x 30mm 2.5mm 0.9 n.m. 4.1 N.m.
wood cross grain 8 gauge x 12mm 2.5mm 0.8 n.m. 3.8 N.m.
wood cross grain 8 gauge x 30mm 2.5mm 0.9 n.m. 4.0 N.m.
3mm mild steel plate 8 gauge x 12mm 3.5mm 2.7 n.m. 4.0 N.m.
3mm mild steel plate 8 gauge x 30mm 3.5mm 2.9 n.m. 3.7 N.m.