Chopped Strand Fiberglass: Uses and Advantages
What Is Chopped Strand Fiberglass?
Chopped strand fiberglass is produced by cutting continuous fiberglass yarns into short lengths, typically 6 to 50 mm. After cutting, the strands receive a sizing treatment compatible with the resin or matrix they'll be mixed into.
Why It's Used
Chopped strand offers high temperature resistance, chemical resistance, low water absorption and electrical insulation. Its non-combustible nature suits fire-safety-critical applications. Its short-fiber form disperses evenly into a mix — ideal for concrete, ready-mix plaster and thermoplastic injection.
Applications
Chopped strand fiberglass is used to reinforce concrete and precast elements, ready-mix plaster mortars, thermoplastic-reinforced parts (automotive, electrical), and small composite molded parts.
Frequently Asked Questions
What does chopped strand add to concrete?+
It improves crack resistance, reduces shrinkage cracking and increases impact resistance — especially valued in thin precast elements.
What fiber length suits which application?+
Shorter lengths (6-12 mm) disperse easily in mortar/concrete mixes; longer lengths (25-50 mm) suit thermoplastic reinforcement where higher strength is needed.
