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Neoprene isolation pads are normally supplied ribbed in standard sizes of 465x465mm. The pads are resistant to ozone, fuel oil, cutting fluid. Other elastomers are available.
Pads can be supplied cut to smaller sizes. The thickness can be increased by bonding layers together.
Type NP2 pads can be made up of two layers of NP1 bonded to both sides of a galvanised plate.