Phenolic Tackifying Resin SP-1068 (Octylphenol Resol)
CAS Number: 9003-35-4
SP-1068 is an octylphenol-formaldehyde resol-type reactive tackifying resin that provides exceptional building tack and reinforcing properties in NR and SBR tire compounds. In addition to tackification, it acts as a reinforcing resin that crosslinks into the rubber matrix during vulcanization, contributing to hardness, modulus, and abrasion resistance. SP-1068 is also the primary component in phenolic resin cure systems for butyl and halobutyl rubber.
Technical Specifications
| ash (%) | ≤0.30 |
| appearance | Light yellow to amber solid resin |
| moisture (%) | ≤2.0 |
| specific gravity | 1.04–1.08 |
| softening point (°C) | 95–110 |
| free phenol content (%) | ≤1.0 |
Applications
- NR and SBR tire tread tackification and reinforcement
- Butyl and halobutyl rubber cure system component
- Tire inner liner cure resin
- High hardness rubber compounds for engineering goods
- Friction and brake rubber formulations
Key Features
- Reactive resol resin that reinforces rubber matrix during vulcanization
- Excellent building tack and self-adhesion in tire compounds
- Primary cure resin for butyl and halobutyl inner liners
- Improves hardness, modulus, and tear strength simultaneously
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CAS Number
9003-35-4
Category
Rubber / Tire ChemicalsAvailability
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