18oz Fiberglass E Cloth

17.8 oz actual0°/90°50" wide

1 5

Boat Suppliers

18oz Fiberglass E Cloth

SKU:FG-754450-01

$27.45 USD

$27.45 USD ~~USD~~

$27.45 yd

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Shipping calculated at checkout.

In stock

Width: 50"

50"

Length: 1 Yard

1 Yard 3 Yard Pack 5 Yard Pack 10 Yard Roll 25 Yard Roll Full Roll (125 Yards)

Quantity

Key Specs

Weight: approx. 17.8 oz/yd² (604 g/m²), sold as 18 oz
Fiber Angle: 0°/90° (woven)
Widths: 50 in
Compatible Resins: Epoxy, Polyester, Vinyl Ester
Resin Needed: About 1 qt per yard, waste included
Ships: Folded under 10 yd, rolled from 10 yd

Style 7544 two-end plain weave E-glass at 18 oz per square yard, 50 in wide. This is heavy structural cloth: one ply builds the thickness that three plies of 6 oz would take, which matters when you are laminating a transom or a hull section on the clock. It is woven, so unlike mat it carries real directional strength at 0 and 90 degrees.

Where it goes: transoms, stringers, hull sections, heavy structural repairs and reinforcement.
Build rate: 0.0207 in per ply.
Resin demand: roughly 1:1 resin to glass by weight, about 2.09 oz per square foot.
Resin compatibility: epoxy, polyester and vinyl ester.
Width: 50 in, cut from 1 yard up to a full roll.

Heavy cloth needs real rolling pressure to consolidate. Work a grooved roller through the whole ply and watch the edges, which is where dry spots hide.

Specifications

Ideal For:

Hulls, stringers and transoms
Tooling molds for repeat production
Panel repair for RVs, trailers and off-road vehicles

Weight:

approx. 17.8 oz/yd² (604 g/m²), sold as 18 oz

Widths:

Available in a 50 in width.

Weave:

Plain weave (2-end cloth)

Compatible With:

Epoxy, polyester and vinyl ester resins.

Medium-to-heavyweight cloth for marine, automotive and structural work that needs a balance of strength, durability and drape.

Includes

18oz Fiberglass Cloth - By The Yard

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Technical Specifications

E-GlassPlain weave (2-end cloth)Works with Epoxy, Polyester, Vinyl EsterWoven in the USA

MaterialE-Glass

Industry Style #Style 7544

Weightapprox. 17.8 oz/yd² (604 g/m²), sold as 18 oz

Weave / ConstructionPlain weave (2-end cloth)

Fiber Orientation0°/90° (woven)

Thickness0.0207"

Available Widths50"

Full Roll Length125 yd

Thread Count28 × 14

Tensile / Breaking Strength≥750 / ≥750 lb/in (warp / fill, greige)

Resin-to-Reinforcement Ratio~1:1 by weight

Compatible ResinsEpoxy, Polyester, Vinyl Ester

Best ForHeavy structural reinforcement

Compare Fabrics

Product	18oz Fiberglass E ClothYou're viewingfrom $27.45	40oz Fiberglass E Clothfrom $47.95	18oz Woven Rovingfrom $19.44	24oz Woven Rovingfrom $22.39
Material	E-Glass	E-Glass	E-Glass	E-Glass
Style	Style 7544	—	—	—
Weight	approx. 17.8 oz/yd² (604 g/m²), sold as 18 oz	40 oz/yd² (1356 g/m²), nominal	18 oz/yd² (610 g/m²)	24 oz/yd² (814 g/m²)
Weave	Plain weave (2-end cloth)	Double plain weave	Woven Roving	Woven Roving
Orientation	0°/90° (woven)	0°/90° (woven)	0°/90° (woven)	0°/90° (woven)
Thickness	0.0207"	0.0386"	0.030"	0.040"
Widths	50"	38"	50"	50"
Full Roll	125 yd	50 yd	125 yd	approx. 52 yd
Thread Count	28 × 14	—	~5 × 4	~5 × 4
Tensile Strength	≥750 / ≥750 lb/in (warp / fill, greige)	—	—	—
Resin Ratio	~1:1 by weight	~1:1 by weight	~1:1 by weight	~1:1 by weight
Resins	Epoxy, Polyester, Vinyl Ester	Epoxy, Polyester, Vinyl Ester	Epoxy, Polyester, Vinyl Ester	Epoxy, Polyester, Vinyl Ester
Best For	Heavy structural reinforcement	Very heavy structural build	Fast bulk build between mat layers	Heavy bulk build between mat layers
	Selected	View	View	View

What To Expect When You Order Fabric Rolls

Can epoxy resin be used with fiberglass cloth?

Yes, epoxy resin is ideal for wetting out fiberglass cloth and other reinforcements like carbon fiber and Kevlar. It saturates the fabric well and cures into a strong, durable laminate.

Can fiberglass cloth be used on wood or metal?

Yes. With the right resin, fiberglass cloth bonds to wood, metal, foam, and cured fiberglass. Use epoxy for wood and metal, since it grips those substrates far better than polyester. Prep matters more than the cloth: sand to clean, bare material, remove all dust and oil, and wet out the surface before laying the cloth down.

What does the weight (oz) of fiberglass cloth mean?

The weight refers to ounces per square yard. Lighter cloth (e.g., 4oz) is more flexible and used for fine finishing; heavier cloth (e.g., 10oz) provides more strength and bulk.

How do I cut fiberglass cloth?

Use sharp scissors or a rotary cutter on a clean surface. To reduce fraying, run masking tape along the cut line and cut through the middle of the tape, and handle cut edges gently. Keep the cloth dry before layup, since moisture on the glass weakens the resin bond.

What is fiberglass cloth used for?

Fiberglass cloth is used to reinforce composite materials in applications like boat building, surfboard repairs, auto bodywork, and structural laminates. It’s combined with resin to form a strong, lightweight composite.

What’s the difference between fiberglass cloth and chopped mat?

Fiberglass cloth is woven for strength in specific directions, while chopped strand mat is made of randomly oriented fibers and is better for building bulk.