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18oz Woven Roving

18oz Woven Roving

Regular price $19.44 USD
Sale price $19.44 USD Regular price
Unit price $19.44  per  yd
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100 in stock

Width: 50"
Length: 1 Yard
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Heavy-duty 18oz woven roving fiberglass for marine and composite reinforcement. Ideal for boat building, mold making, and structural laminates.

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 Woven Roving 50" width by the yard

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Technical Specifications


E-GlassWoven RovingWorks with Epoxy, Polyester, Vinyl Ester
MaterialE-Glass
Weight18 oz/yd²
Weave / ConstructionWoven Roving
Fiber Orientation0°/90° (woven)
Available Widths50"
Full Roll Length125 yd
Thread Count~5 × 4
Resin-to-Reinforcement Ratio~1:1 by weight
Compatible ResinsEpoxy, Polyester, Vinyl Ester
Best ForFast bulk build between mat layers

Compare Fabrics


Product18oz Woven Roving18oz Woven RovingYou're viewingfrom $19.44 18oz Fiberglass E Cloth18oz Fiberglass E Clothfrom $17.49 40oz Fiberglass E Cloth40oz Fiberglass E Clothfrom $32.44 24oz Woven Roving24oz Woven Rovingfrom $22.39
MaterialE-GlassE-GlassE-GlassE-Glass
Weight18 oz/yd²18 oz/yd²40 oz/yd²24 oz/yd²
WeaveWoven RovingPlain weave (2-end cloth)Double plain weaveWoven Roving
Orientation0°/90° (woven)0°/90° (woven)0°/90° (woven)0°/90° (woven)
Widths50"50"38"50"
Full Roll125 yd125 ydapprox. 70 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 ForFast bulk build between mat layersHeavy structural reinforcementVery heavy structural buildHeavy bulk build between mat layers
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What To Expect When You Order Fabric Rolls

24oz Woven Roving

It’s relatively stiff compared to other fiberglass fabrics, but it can still conform to gradual curves with proper wet-out and pressure.

Yes, and you usually should. Woven roving builds thickness fast but has a coarse weave, so it is almost always alternated with chopped strand mat: the mat fills the weave and ties the layers together for a stronger, void-free laminate. A common schedule is mat, roving, mat. Finish with cloth or mat for a smoother surface.

Woven roving works well with polyester, vinyl ester, and epoxy resins. Polyester is common in boatbuilding, while epoxy is preferred for repairs and higher strength applications.

Woven roving is a heavy-duty fiberglass fabric made from continuous strands woven into a coarse, crisscross pattern. It provides high tensile strength and is ideal for structural laminates in marine and industrial applications.

Woven roving is much thicker and heavier than standard fiberglass cloth. It’s used for strength and bulk, while cloth is typically used for finishing or lightweight laminates.

Use sharp heavy-duty scissors or shears. Because of its thickness, it may be harder to trim cleanly than lighter fiberglass cloth.