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18oz Fiberglass E Cloth

18oz Fiberglass E Cloth

SKU:FG-754450-01

Regular price $19.28 USD
Sale price $19.28 USD Regular price $19.44 USD
Unit price $19.28  per  yd
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Shipping calculated at checkout.

194 in stock

Width: 50"
Length: 1 Yard
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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.

Ideal for:

- Mid-Heavyweight Marine & Auto Repairs

- boat construction and repair to reinforce hulls, stringers, and transoms.

- tooling molds used in repeat production of marine or automotive parts.

- panel repair or fabrication for RVs, trailers, and off-road vehicles

Size Options:

Available in various widths to suit your project needs.

Weight:

18oz/sqft

162oz/yard

Compatible with:

- Epoxy resin

- Polyester

- Vinyl ester resins for a flawless bond.

Medium-to-heavyweight fiberglass fabric that's widely used in marine, automotive, and structural applications where a solid balance of strength, durability, and flexibility is needed. It's more manageable than 40oz cloth but still offers significant reinforcement.

18oz Fiberglass Cloth - By The Yard

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Technical Specifications


E-GlassPlain weave (2-end cloth)Works with Epoxy, Polyester, Vinyl Ester
MaterialE-Glass
Industry Style #Style 7544
Weight18 oz/yd²
Weave / ConstructionPlain weave (2-end cloth)
Fiber Orientation0°/90° (woven)
Thickness0.0207"
Available Widths50"
Full Roll Length125 yd
Resin-to-Reinforcement Ratio~1:1 by weight
Compatible ResinsEpoxy, Polyester, Vinyl Ester
Best ForHeavy structural reinforcement

Compare Fabrics


Product18oz Fiberglass E Cloth18oz Fiberglass E ClothYou're viewingfrom $19.28 40oz Fiberglass E Cloth40oz Fiberglass E Clothfrom $38.18 18oz Woven Roving18oz Woven Rovingfrom $19.44 24oz Woven Roving24oz Woven Rovingfrom $22.39
MaterialE-GlassE-GlassE-GlassE-Glass
StyleStyle 7544
Weight18 oz/yd²40 oz/yd²18 oz/yd²24 oz/yd²
WeavePlain weave (2-end cloth)Double plain weaveWoven RovingWoven Roving
Orientation0°/90° (woven)0°/90° (woven)0°/90° (woven)0°/90° (woven)
Thickness0.0207"0.0386"
Widths50"38"50"50"
Full Roll125 ydapprox. 70 yd125 ydapprox. 52 yd
Thread Count~5 × 4~5 × 4
Resin Ratio~1:1 by weight~1:1 by weight~1:1 by weight~1:1 by weight
ResinsEpoxy, Polyester, Vinyl EsterEpoxy, Polyester, Vinyl EsterEpoxy, Polyester, Vinyl EsterEpoxy, Polyester, Vinyl Ester
Best ForHeavy structural reinforcementVery heavy structural buildFast bulk build between mat layersHeavy bulk build between mat layers
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What To Expect When You Order Fabric Rolls

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.

Yes. With the right resin, 10 oz 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.

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.

Use sharp scissors or a utility knife. To reduce fraying, you can lightly mist the cloth with water or use tape to mark the cutting line.

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.

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.