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PAMS Resin Alpha Methyl Styrene Resin

The Alpha Methyl Styrene resin is the monomer petroleum resin obtained by the copolymerization of α-methyl styrene and the second monomer. AMS Resin is a water-white, transparent, low-molecular-weight thermoplastic resin with a softening point of 80–150 °C. Compatible with numerous polymers, it lowers processing temperatures by 15–20 °C while markedly improving peel strength, hardness, and aging resistance. Low-odor and low-VOC, it is widely used for tackifying, reinforcing, modifying, and eco-friendly formulations.

  • Item NO.:

    PAMS Resin
  • Property:

    AMS Resin is a water-white, transparent, low-molecular-weight thermoplastic resin with a softening point of 80–150 °C. Compatible with numerous polymers, it lowers processing temperatures by 15–20 °C while markedly improving peel strength, hardness, and aging resistance. Low-odor and low-VOC, it is widely used for tackifying, reinforcing, modifying, and eco-friendly formulations.

PAMS Resin Alpha Methyl Styrene Resin

Alpha-Methyl Styrene Resin

– Key Features

  • - High-aromatic petroleum resin copolymerized from α-methyl styrene and a co-monomer  
  • - Excellent compatibility with SBR, NR and other synthetic rubbers  
  • - High viscosity and strong tack, instantly boosting peel and cohesive strength  
  • - Formulation flexibilizer for adhesives: raises holding power and aging resistance  
  • - Improves rubber compound anti-slip and wet-grip performance

Specifications

Items PAMS 85 PAMS 100 PAMS 110 PAMS 120 PAMS 130 PAMS 140
Appearance Colorless, transparent granule
Softening Point (°C) 80-90 100-109 110-119 120-129 130-140 136-145
Color (Gardner) 0-1
Yellow Index (YI) 0-9.5

Application

1. PSA & HMA: acts as a tackifying resin, instantly boosting peel strength and heat resistance.  

2. Plastic modification: processing aid for PVC/TPU extrusion & injection, lowering melt temperature, improving flow and stiffness.  

3. Rubber tire: tread moisture-resistant modifier that enhances wet grip and reduces heat build-up; also reinforces TPE, wire coatings, ionic elastomers.  

4. Coatings & specialty molding: increases gloss, abrasion resistance and drying speed while serving as a reinforcing filler.

PAMS Resin Alpha Methyl Styrene Resin

 

Packing: 25kg in PE bag or Paper bag. With pallet or without pallet.

Storage: Should be stored in cool ventilated dry place. 

Shelf life: One year in a ventilating, cool and dry area.

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