Profile based on SBR with 60-80 (wt.%) butadiene and 40-20% styrene, contains 30-60 pts. EVA and 30-40 pts. C black per 100 pts. thermoplastic styrene-butadiene-styrene rubber (SBS). The compsn. can also contain 2-30 pts. N-isopropyl-N-phenyl-p-phenylene-diamine (I) and/or 20-40 pts. coumarone resin (II), pref. with a m.pt. of ca. 130 degrees C or 20-40 pts. lignin resin, based on lignin sulphonates, modified lignins and their derivs., and/or 5-35 pts. paraffin oil. No vulcanisation is needed and the profile can be bonded easily. It has good physical properties, e.g. great elasticity with slight compression set, optimum tensile strength and elongation at break, high tear strength and good resistance to heat, cold and ageing.
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