4oz Fiberglass E Cloth

Name: 4oz Fiberglass E Cloth
Brand: Boat Suppliers
SKU: FG-C0430-01
Price: 5.96 USD
Availability: InStock
Rating: 5.0 (2 reviews)

4oz Fiberglass E Cloth

SKU:FG-C0430-01

$5.96 USD

$5.96 yd

Sale Sold out

Shipping calculated at checkout.

14 in stock

Width: 30"

30" 50"

Length: 1 Yard

1 Yard 3 Yards 10 Yards Full Roll (125 Yards)

Quantity

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Shop 4oz fiberglass cloth for strong, lightweight marine reinforcement. Find high-quality, durable fabric ideal for boat building, repairs, and composite applications.

4 oz plain weave is the light, finish-grade cloth: it wets out clear and conforms to curves for surfboard skins, cosmetic layups and small repairs. Comes 30 and 50 inches wide. For a full breakdown of weights, read which fiberglass cloth weight to use.

Specifications

Ideal for:

- Surfboard Building & Repairs

- Lightweight Marine & Auto Repairs

- Model Building

- Cedar Strip Canoes & Kayaks

Size Options:

Available in various widths to suit your project needs.

Weight:

4oz/sqft

36oz/yard

Compatible with:

- Epoxy resin

- Polyester

- Vinyl ester resins for a flawless bond.

Lightweight fabric ideal for most light-duty applications, commonly used where a clear wet-out is desired.

Includes

4oz Fiberglass E Cloth by the yard

Features

Lightweight & Smooth
Ideal for surfboards, paddleboards, model building, and fine laminations where minimal weight and a smooth finish are critical.
Tight Plain Weave (E-Glass)
Balanced strength and drapeability — easy to handle and conforms well to curves and contours.
Crystal Clear Finish with Epoxy
Virtually disappears when wet out with epoxy resin, making it great for cosmetic overlays and transparent laminations.
Low Resin Usage
Requires less resin to wet out compared to heavier fabrics, saving weight and cost.
Compatible with Epoxy, Polyester, and Vinyl Ester Resins
Works across multiple resin systems for a variety of marine, automotive, and hobby projects.
Easy to Cut, Shape & Sand
Excellent for detail work, reinforcement layers, and small repairs where precision matters.
Perfect for Sealing Wood or Foam Commonly used to seal composite cores or add strength without adding bulk.

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Technical Specifications

E-GlassPlain weaveWorks with Epoxy, Polyester, Vinyl Ester

MaterialE-Glass

Industry Style #BGF 1522

Weight4 oz/yd²

Weave / ConstructionPlain weave

Fiber Orientation0°/90° (woven)

Thickness0.0059"

Available Widths30", 50"

Full Roll Length125 yd

Thread Count24 × 22

Tensile / Breaking Strength170 / 160 lb/in (warp/fill, dry)

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

Compatible ResinsEpoxy, Polyester, Vinyl Ester

Best ForLightweight repairs and surfboard work

Compare Fabrics

Product	4oz Fiberglass E ClothYou're viewingfrom $5.96	3oz Fiberglass E Clothfrom $10.79	6oz Fiberglass E Clothfrom $7.54	10oz Fiberglass E Clothfrom $9.75
Material	E-Glass	E-Glass	E-Glass	E-Glass
Style	BGF 1522	—	BGF 7533	BGF 7500
Weight	4 oz/yd²	3.2 oz/yd²	6 oz/yd²	10 oz/yd²
Weave	Plain weave	Plain weave	Plain weave	Plain weave
Orientation	0°/90° (woven)	0°/90° (woven)	0°/90° (woven)	0°/90° (woven)
Thickness	0.0059"	—	0.0093"	0.0154"
Widths	30", 50"	38"	38", 50", 60"	38", 50"
Full Roll	125 yd	125 yd	125 yd	125 yd
Thread Count	24 × 22	—	18 × 18	16 × 14
Tensile Strength	170 / 160 lb/in (warp/fill, dry)	—	290 / 280 lb/in (warp/fill, dry)	490 / 430 lb/in (warp/fill, dry)
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	Lightweight repairs and surfboard work	Lightweight finishing and surface coats	General-purpose marine layup and repair	Medium-weight structural reinforcement
	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 10 oz fiberglass cloth be used on wood or metal?

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.

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

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.

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4oz Fiberglass E Cloth

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