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Fiberglass Mat

Fiberglass Mat is one of the most popular forms of reinforcement for non-structural applications. It's inexpensive, easy to use, and can quickly build thickness into parts, molds, or even a repair. It features randomly oriented strands throughout that effectively hide print-through of heavier fabrics and create an equal stiffness in all directions for molds and parts.

Note: All Fiberglass Mat is made to be used with resin to create hard, composite parts. However, it is NOT compatible with epoxy resin. Mat has a light binder that holds it together. During lay-up, it requires styrene to break down that binder and allow for complete resin saturation. Epoxy does not contain styrene and therefore cannot be effectively used with the mat. Use polyester or vinyl ester resin with these applications.


Click on a fiberglass fabric image below to view more information and pricing.


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Chopped Strand Mat: 1 1/2 ounce
1.5 oz/sq ft, 38" & 50" Wide, 0.045" Thick


Chopped Strand Mat is most frequently used with polyester resin to quickly build thickness for parts and between layers of fabric for building molds. It can be used alone or in conjunction with fiberglass fabrics, or woven roving, in larger fabrications.

Fabricators generally tear apart Chopped Strand Mat, rather than cut it. This maintains the length of fibers along the torn edge, which create stronger bonds with subsequent layers.

Chopped Strand Mat contains a binder which holds strands together, but prevents proper bonding with any epoxy resins. PLEASE NOTE: it is only compatible with polyester or vinyl ester resins.

For convenience, mat is also sold in 4-inch-wide tape form (#492).

For 38-inch, typical full roll length is 80 yards.
For 50-inch, typical full roll length is 87 yards. 
Continuous Strand Mat
1.5 oz/sq ft, 50" Wide, 0.060" Thick


Continuous Strand Mat is frequently used for rapid build-up of parts and molds, whether used alone or with other fiberglass fabrics. It wets out easily, is highly conformable, and is easily controlled for thickness, when uniformity is a factor.

When used with vacuum infusion, continuous strands looped throughout the mat facilitate the flow of resin, unlike the slowing effects often caused by chopped strand binders.

Continuous Strand Mat contains a binder which holds strands together, but prevents proper bonding with any epoxy resins. PLEASE NOTE: it is only compatible with polyester or vinyl ester resins.

Typical full roll length is 125 yards. 
Continuous Strand Veil Surfacing Mat
3.7 g/sq ft, 38" Wide, 0.010" Thick


This surfacing mat is a thin ply of continuous strand fibers that are randomly looped throughout the roll of material. It serves two primary purposes:
  • As a surface coat, it is often added to molds to minimize the pattern show-through of heavier fabrics applied later. It permits surface sanding of finished parts without compromising, or cutting into, the reinforcing fabric below.
  • When used with sandwich core, it may be placed directly over core materials to optimize bond-line thickness. It will also keep excess resin from draining into honeycomb cells when a vacuum is not used.


It is extremely thin, with a consistency much like tissue paper, and is held together with only a light binder—it does NOT add strength or structural value to any application.

Binder is not compatible with any epoxy. PLEASE NOTE: it should be used with polyester or vinyl ester resin only. 
Mat Tape
1.5 oz/sq ft mat, 4" Wide, 0.045" Thick


Chopped Strand Mat Tape is ideally suited to reinforce the seams, corners, or edges of larger parts made from chopped strand mat or other fiberglass fabrics.

Fabricators generally tear apart this tape, rather than cut it. This maintains the length of fibers along the torn edge, which create stronger bonds with subsequent layers.

Mat Tape is called tape only for its width and appearance. It is not adhesive backed. Like its fabric counterpart, it contains a binder that holds it together and prevents proper bonding with any epoxy resins. PLEASE NOTE: it is only compatible with polyester or vinyl ester resins.

For applications requiring a wider format, use Chopped Strand Mat in 38-inch (#250) and 50-inch (#1250) widths. 
Woven Roving
18 oz/sq yd, 50" Wide, 0.025" Thick, Basket Weave


Woven Roving provides an inexpensive means to laminate large, flat areas that call for rapid build-up and high strength reinforcement. It is not suited for applications that require conformability.

Fibers are bundled into warp and fill yarns that run at zero and 90 degrees, delivering solid strength in two directions for finished composite parts. Fabricators should orient yarns to run parallel with expected loads, and alternate consecutive plies at 45 degrees to maximize strength.

Woven roving is often used with chopped strand mat (CSM) to reinforce other materials and make repairs. In this specific case, it should be used with polyester or vinyl ester resin only, as the CSM keeps it from being compatible with epoxy. Otherwise, woven roving is compatible with all of the resins on this site.

Fibre Glast is committed to ensuring that every roll of fabric we handle is First Quality and manufactured to the highest standards, so that you can expect the same finish, sizing, and handling characteristics every time you order.

Typical full roll length is 100 yards. 
Scrim Fabric, White
1.64 oz/sq yd, 50" Wide, 0.005" Thick, 20 x 10 Leno Weave


Scrim fabric is a unique open form of fiberglass and is used in a variety of ways:
  • It is often used for reinforcement of other types of materials, including fiberglass and some plastics. When fully cured, the scrim fabric strengthens and mimics the expansion/contraction of the surrounding substrate.
  • It can be used in repair applications, often for concrete repair and castings.
  • It can be adhered to sandwich core materials to allow added conformability.


Like other plain weave fabrics, scrim delivers uniform strength in both horizontal and vertical directions.

Scrim fabric is compatible with epoxy, vinyl ester, and polyester resin systems.

Fibre Glast is committed to ensuring that every roll of fabric we handle is First Quality and manufactured to the highest standards, so that you can expect the same finish, sizing, and handling characteristics every time you order.

Typical full roll length is 2,500 yards.  
Fiberglass Sample Pack
This convenient Sample Pack contains a 4" x 6" swatch of our fiberglass fabrics and tapes. It is ideal for determining which material you would like to try for your application. Plus, each sample pack includes a coupon for $25 off your next order of $100 or more when purchased within 60 days!

*This sample pack does not contain Stitched Fiberglass. For these fabrics see #4007 Stitched Fiberglass Sample Pack.

Contains samples of:

Woven Fiberglass Fabrics
#241 2 oz/sq yd, Plain Weave, 38" Wide
#262 4 oz/sq yd, Plain Weave, 50" Wide
#259 6 oz/sq yd, Plain Weave, 38" Wide
#243, 244 7.5 oz/sq yd, Plain Weave, 38" or 50" Wide
#245, 271, 247 10 oz/sq yd, Plain Weave, 38", 50", or 60" Wide
#1543, Style 6781 S2-Glass, 9 oz/sq yd, 8H Satin Weave
#1094 Style 7725, Bi-Directional, 9 oz/sq yd, 2x2 Twill Weave, 38" Wide
#543 Style 7781, 9 oz/sq yd, 8HS Weave, 38" Wide
#573 Style 120, 3 oz/sq yd, 4HS Weave, 38" Wide
#254 20 oz/sq yd Tooling Fabric, Mock Leno Weave, 38" Wide
#223 18 oz/sq yd Woven Roving, Plain Weave, 50" Wide
Fiberglass Tape, 9 oz/sq yd, Plain Weave, 1" (#217,) 2" (#219,) 3" (#220,) 4" (#221,) 6" (#222,) or 12" (#224)
#246 Scrim Fabric, 50" Wide, White

Non-woven Fiberglass Fabrics
Chopped Strand Mat, 1.5 oz, (#250) 38" Wide, (#1250) 50"Wide, (#492) 4" Wide
#260 Continuous Strand Surfacing Veil, 38" Wide
#251 1.5 oz/sq ft Continuous Strand Mat, 50" Wide
#522 Gun Roving, for use with chopper gun

Fiberglass Sleeve
2" Braided Fiberglass Biaxial Sleeve, 10.4oz 



You can place an order on our website or, if you have any questions, call 1.800.838.8984 | 8:00am - 8:00pm EST Mon-Fri.


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