Foam Tape Compression & Material Guide by Series

Compression Guide

This guide shows the force required to compress each material series to 25% of its original thickness (leaving it at 75% thickness).

Foam tape compression and firmness guide chart showing PSI ratings by product series

Firmness Level	Force Required (PSI)	Compatible Material Series
Ultra Soft	0–2 psi	P8500 – Polyester P8500E – Polyether
Soft	2–5 psi	NE4100 – Neoprene (Pure) P9200 – EPDM P9300 – EPDM P8200 – Blended Neoprene P8600 – Blended Nitrile/Vinyl U6100 – Poron Urethane (1/8"+)
Medium	5–9 psi	P9100 – EPDM P8100 – Blended Neoprene P8100UL – Blended Neoprene P8000 – Sponge Rubber
Firm	9–13 psi	NE4300 – Neoprene (Pure) P8300 – Blended Neoprene S600 – Silicone U6100 – Poron Urethane (1/16")
Extra Firm	13–17 psi	NE4400 – Neoprene (Pure)