What Is Chopped Strand Mat

Because the binder dissolves in resin the material.

What is chopped strand mat.

Fabricators generally tear apart chopped strand mat rather than cut it. Chopped strand mat csm is a random fiber mat that provides equal strength in all directions and is used in a variety of hand lay up and open mold applications. Chopped strand mat is most frequently used with polyester resin to quickly build thickness for parts and between layers of fabric for building molds. In the case of polyester and vinylester resins an emulsion bound matt is used and in the case of an epoxy resin a powder bound matt would be used.

Also called csm chopped strand mat non woven fiberglass mat material is typically used for repair work and laminate build up. Fiberglass mat also known as chopped strand mat or csm p fiberglass mat is a non woven material typically used for laminate build up and repair work. Chopped strand mat weight is specified in ounces per square foot. Chopped strand mat is produced by chopping continuous strand roving into short 1 5 to 3 inch lengths and dispersing the cut fibers randomly over a moving.

It is typically processed using the hand lay up technique where sheets of material are placed on a mold and brushed with resin. Chopped stand mat can be chemically or mechanically bound. Available in various lengths and three different weights. It consists of glass fibers laid randomly across each other and held together by a binder.

Mat is often used as the first layer before the gelcoat in a laminate to prevent print through. Chopped strand mat is a non woven cloth from chopped glass fiber of a regular distribution. Print through is when the fabric weave texture shows through the resin. It can be used alone or in conjunction with fiberglass fabrics or woven roving in larger fabrications.

Available online in various quantities and sizes or request our free print catalog. Chopped strand mat conforms readily and is well suited to use for odd shaped parts. Glass matting and surface tissue chosen for its outstanding quality buy online or by phone. Long fiberglass strands laid randomly in a styrene binder.

Chopped strand mat or csm is a form of reinforcement used in fiberglass. Chopped strand mat csm is a widely used traditional reinforcement solution. Use weights per lineal yard to estimate resin requirements. Chopped strand mat is designed to cover a wide range of layup techniques.

Chopped strand mat is the least expensive fiberglass and is often used in mold construction or projects where thickness is needed. It easily conforms to moulds and has fast wet out properties. With chopped strand mats as a general rule estimate the resin reinforcement ratio at 2 1 by weight.