3/4 oz Fiberglass Chop Strand Mat – 50" Wide (Cut Yardage)

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SKU
2cy3/4mat
As low as $4.06
Quick Overview

3/4 oz. Fiberglass Chop Strand Mat (50" wide) is a versatile reinforcement material sold by the yard, in 10-yard rolls, or 25-yard rolls. Compatible with polyester and vinyl ester, this mat wets out easily and provides excellent strength for laminating, boat building, and fiberglass repair projects.

3/4 oz. Fiberglass Chop Strand Mat – 50" Wide

3/4 oz. Chop Strand Mat (CSM) is one of the most widely used fiberglass reinforcements for marine, automotive, and general composite projects. Featuring randomly oriented glass fibers held together with a styrene-soluble binder, this mat offers uniform strength in all directions and wets out quickly with resin.

Key Features

  • Lightweight reinforcement – 3/4 oz. per square foot
  • 50" width for large, continuous layups
  • Available by the linear yard, 10-yard rolls, and 25-yard rolls
  • Compatible with polyester, vinyl ester, and epoxy resins
  • Excellent conformability for complex curves and contours
  • Provides a smooth finish and strong laminate structure

Applications

  • Boat building and fiberglass repair
  • Automotive body panels and restoration
  • Mold making and plug building
  • Composite reinforcement for marine, industrial, and DIY projects

Whether you need small yardage for a repair or bulk rolls for larger projects, 3/4 oz. Fiberglass Chop Strand Mat is the industry standard for reliable performance, easy handling, and cost-effective reinforcement. Ideal for surfboards, boats, automotive, and structural fiberglass applications.

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Customer Questions
How much fiberglass cloth do I need for my surfboard?
How much fiberglass cloth do I need to build a surfboard? The amount of fiberglass cloth required depends on your surfboard’s size, glassing schedule, and whether you're accounting for waste and overlap. For a typical 6'1" shortboard with a standard...
Why is timing critical when building a polyester tooling mold?
Most polyester tooling molds are built using contact (open) molding, where tooling gel coat is applied first and allowed to gel before laminating. The laminate bonds to the cured gel coat through a secondary bond, which is inherently weaker than a ...
What type of tooling gel coat should be used for mold construction?
Tooling gel coat selection directly impacts mold surface quality, durability, and heat resistance. Isophthalic polyester tooling gel coats provide the highest natural gloss and smoothness but offer moderate strength and heat distortion temperature (...
What is the purpose of a barrier coat in tooling applications?
Barrier coats, typically vinyl ester based, are applied between the tooling gel coat and the laminate. Their primary function is to block fiber print-through and reduce surface distortion in the finished mold. Barrier coats also reinforce the ...
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