Natural Rubber extrusion Sponge Strip
BRP are leading manufacturers of Seals, Gaskets and associated products including Natural Sponge Strip in plain or self adhesive backed.
Natural sponge strip can be manufactured in variants of width, length and thickness.
We use various methods of production for Natural Sponge Strip dependent on the product dimensions chosen. Methods of production for Natural Sponge Strip include:
Log cut strip using CNC control
Open cell sponge rubber is calendered and injected with gas to make it cellular. Most open cell is natural rubber and is a great cushioning material that can compress and recover quickly. It has low pressure sealing against gases and is weather resistant.
Open cell sponge rubber can be made of silicone or other polymers such as neoprene, EPDM, nitrile, etc. and is manufactured in rolls. Exact open cell sponge rubber properties depend upon the type of polymer used.
(Expanded Sponge Rubber)
Closed cell sponge is made in buns (gas expanded) and cut to thickness. Most closed cell sponge is neoprene or neoprene blend and is an ideal medium for protection in uses to prevent water or air from passing from one area to another at low pressures. It has high flexibility and compression capabilities and can conform to and seal most surfaces.
Closed cell sponge rubber can be made of silicone or other polymers such as neoprene, EPDM, nitrile, etc. and is made in relatively small 42 inch x 72 inch sheets. Exact properties depend upon the type of polymer used. The closed cells are expanded with nitrogen gas which is generated during forming and/or curing.