2oz Fiberglass Chopped Strand Mat

SKU:CSM-2050-01

$6.87 USD

$6.87 yd

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95 in stock

Width: 50"

50"

Length: 1 Yard

1 Yard 3 Yards 10 Yards Full Roll (Approx. 60 Yards)

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For maximum strength and durability, our 2 oz Fiberglass Chopped Strand Mat is the ideal choice for boat repairs, automotive applications, and composite laminations. This heavy-duty mat offers superior bonding with polyester and vinyl ester resins, ensuring a reinforced, long-lasting finish with excellent structural integrity.

Specifications

Ideal for:

- Structural reinforcement

- Large Repairs

- Heavy Layups

- Marine, Auto & Aerospace Use

Compatible with:

- Polyester resin
- Vinyl ester resins for superior adhesion.

Resin Requirements:
- 50" Width: Approximately 42oz of resin per yard

Weight
2oz per square foot
(18oz per square yard)

610gsm

Most commonly used mat for mold and boat building applications as well as automotive part construction.

Product Data Sheet

Includes

2oz fiberglass chopped strand mat by the yard

Features

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Technical Specifications

E-Glass (chopped strand)Chopped Strand MatWorks with Polyester, Vinyl Ester

MaterialE-Glass (chopped strand)

Weight2 oz/ft² (18 oz/yd²)

Weave / ConstructionChopped Strand Mat

Fiber OrientationRandom (chopped)

Available Widths50"

Full Roll Lengthapprox. 60 yd

Resin-to-Reinforcement Ratio~2 to 2.5:1 (resin:glass)

Compatible ResinsPolyester, Vinyl Ester

Best ForHeavy mat for fast bulk build

Compare Fabrics

Product	2oz Fiberglass Chopped Strand MatYou're viewingfrom $6.87	0.75oz Fiberglass Chopped Strand Matfrom $3.12	1.5oz Fiberglass Chopped Strand Matfrom $4.62
Material	E-Glass (chopped strand)	E-Glass (chopped strand)	E-Glass (chopped strand)
Weight	2 oz/ft² (18 oz/yd²)	0.75 oz/ft² (6.75 oz/yd²)	1.5 oz/ft² (13.5 oz/yd²)
Weave	Chopped Strand Mat	Chopped Strand Mat	Chopped Strand Mat
Orientation	Random (chopped)	Random (chopped)	Random (chopped)
Thickness	—	—	0.045"
Widths	50"	38", 50"	38", 50"
Full Roll	approx. 60 yd	approx. 150 yd	approx. 80 yd
Resin Ratio	~2 to 2.5:1 (resin:glass)	~2 to 2.5:1 (resin:glass)	~2 to 2.5:1 (resin:glass)
Resins	Polyester, Vinyl Ester	Polyester, Vinyl Ester	Polyester, Vinyl Ester
Best For	Heavy mat for fast bulk build	Thin bulk/print-blocking layer behind gelcoat	Most common mat for mold and boat building
	Selected	View	View

What To Expect When You Order Fabric Rolls

Fiberglass Chop Strand Mat - Boat Suppliers

Can chopped strand mat be layered with other materials?

Absolutely. It's commonly used between layers of fiberglass cloth or woven roving to add bulk and prevent print-through in gelcoats or top layers.

Do I need to roll out air bubbles when using chopped strand mat?

Yes, it's important to use a fiberglass roller to eliminate air bubbles and ensure proper wet-out during lay-up. This improves the strength and finish of the final part.

How thick is 2oz fiberglass mat?

2 oz fiberglass mat is approximately 0.060 inches thick (about 1.5 mm) in its dry form. Once resin is applied and rolled out, the thickness compresses closer to 1.0 mm depending on resin content and pressure.

How does 2 oz mat compare to 0.75 oz or 1.5 oz fiberglass mat?

0.75 oz chopped strand mat is about 0.022–0.025 inches thick (≈0.6 mm) in dry form. Once resin is applied and rolled, it compresses closer to 0.5 mm. This lightweight mat is excellent for tight curves, cosmetic layers, and small repairs.