Pre-crosslinked natural rubber.
The Superpoly (SP) line of specialty polyisoprene natural rubbers
consists of partially pre-crosslinked, high performance elastomers
available in bale form. These elastomers are produced by blending
specific proportions of vulcanized and unvulcanized natural rubber
during the latex phase of production. The latex phase blending is said
to ensure a homogeneous, uniform mix of the two components. Due to their
unique two-phase structure, SP natural rubbers are said to be very
clean, light in color, and contain low levels of volatile matter.
Applications include wiper blades, tubing, hoses, sponge, surgical
articles, gaskets, windscreen seals, adhesives, etc.
Circle 47 on card