MasterFiber™ F70  

MasterFiber F70, a Micro Synthetic Fiber, is a fibrillated polypropylene fiber manufactured from 100% virgin homopolymer polypropylene resins. MasterFiber F70 meets the requirements of ASTM C1116, Section 4.1.3 and Note 3, and the requirements of ICC ES AC32 Sections 3.1.1 (plastic shrinkage reinforcement) and 3.1.2 (temperature-shrinkage reinforcement).
MasterFiber F70 is designed to distribute quickly throughout the concrete mix. The fibrillation pattern is designed to optimize the mechanical bond between the mortar matrix and the fiber. MasterFiber F70 is an excellent secondary reinforcement option when used at 1.5 lb/yd³ (0.9 kg/m³).

Features

• Excellent distribution
• Excellent temperature-shrinkage reinforcement

Benefits

• Modifies macro-cracking and micro-cracking mechanism
• Reduces plastic settlement
• Extends service life with reduced maintenance
• Enhances fatigue strength
• Enhances impact, pullout and surface abrasion resistance
• Reduces permeability