Bakelite Synthetics launches Bakelite® PF 6204 K, a high-performance phenolic tackifier resin. The tackifier provides both high initial rubber tack but also a high long-term tack. There is no loss of adhesive strength when the mix is stored over a lengthy period.
Acts As a Mild Plasticizer
Also, there are no side effects on vulcanization. The resin acts as a mild plasticizer, thus promoting the distribution of the filler. Phenolic tackifier resins, based on alkyl phenol novolacs, have good compatibility to rubber due to the long alkyl chain.
Tackifier resin acts as a processing aid in unvulcanized rubber mixtures. reinforcing resins. For vulcanized rubber products, tackifier resins improve:
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Processability
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Hardness
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Tensile strength
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Abrasion resistance
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Temperature and chemical resistance
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Outstanding adhesion, particularly of tire cord to the rubber in steel belted radials tires
Source: Bakelite Synthetics