Technical datasheet

SP-1045 Resin

Supplied byAkrochem- Last Updated on Mar 13, 2026

SP-1045 Resin (Old Name: Akrochem® P-101) by Akrochem is a heat reactive, phenolic resin-based tackifier used in the resin curing of butyl rubbers. It is suitable in combination with halogen and zinc donors, yields butyl vulcanizates with outstanding resistance to high heat and compression set. It exhibits non-blooming, non-staining, high modulus values and inherent ozone resistance. It is designed for tire curing bladders, conveyor belts, gaskets and heat resistant packing compounds. It shows compatibility with other elastomers. Recommended dosage level of SP-1045 Resin in butyl is 10-12 phr, chloro-butyl is 4-5 phr and bromo-butyl 1-3 phr.
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SP-1045 Resin properties

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