A high-performance specialty resin FX-4301 developed by Fangxin Resin Group, specifically engineered for high-temperature, high-speed pultrusion of FRP optical cable strength members. It integrates exceptional heat resistance, high elongation at break, excellent wettability, fast curing, superior corrosion resistance, and outstanding mechanical properties, fully meeting the stringent requirements of high-end communication cables for long-term thermal stability and structural strength.

Key Performance Advantages

• Ultra-High Thermal Stability: Excellent heat distortion temperature and long-term service temperature, maintaining dimensional stability and mechanical strength under extreme high-temperature conditions.

• High Elongation at Break: Perfect balance of high strength and toughness, effectively absorbing stress from installation, stretching and thermal expansion, resistant to fracture and bending fatigue.

• Excellent Fiber Wettability: Optimal viscosity and permeability ensure fast, complete wet-out of glass fiber bundles, eliminating voids and dry spots for a smooth, dense finish.

• Fast Curing Efficiency: Designed for high-speed pultrusion lines with rapid, controlled curing, low exotherm and minimal shrinkage, maximizing productivity and dimensional precision.

• Superior Chemical Resistance: Excellent hydrolysis, acid/alkali and aging resistance, suitable for aerial, duct, underground and coastal environments.

• Outstanding Mechanical Properties: High tensile strength, rigidity and flexural/compressive strength for long-lasting, reliable mechanical support of optical fibers.

Application

Specially designed for optical cable strength members (FRP central rods) with extremely high-temperature resistance requirementsWidely used in: high-speed communication cables, submarine optical cables, high-temperature resistant special cables, long-distance trunk cables, 5G/6G communication cables and other high-end scenarios.