Boat Suppliers

1.5oz Fiberglass Chopped Strand Mat

1.5oz Fiberglass Chopped Strand Mat

SKU:CSM-10538-01

Regular price $3.91 USD
Sale price $3.91 USD Regular price $4.16 USD
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Shipping calculated at checkout.

1001 in stock

Width: 38"
Length: 1 Yard
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For a balance of flexibility and strength, our 1.5 oz Fiberglass Chopped Strand Mat is a go-to material for boat repairs, automotive applications, aerospace layups and composite laminations. This medium-weight mat offers excellent wet-out and superior bonding with polyester and vinyl ester resins, ensuring a strong and durable finish.

Ideal for:

- Structural reinforcement

- Repairs

- General fiberglass work.

- Marine, Auto & Aerospace Use


Compatible with:


- Polyester resin
- Vinyl ester resins for superior adhesion.

Resin Requirements:
- 38" Width: Approximately 24 oz of resin per yard
- 50" Width: Approximately 32 oz of resin per yard

Weight:
1-1/2 oz per square foot
(13.5oz per square yard)

458 gsm


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

Product Data Sheet

1.5oz Chopped Strand Mat by the yard

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Variant Variant total Quantity Price Variant total
38" / 1 Yard
38" / 1 Yard
Sale price
$3.91 USD/ea
Regular price
$4.16 USD
$0.00 USD
Sale price
$3.91 USD/ea
Regular price
$4.16 USD
$0.00 USD
38" / 3 Yards
38" / 3 Yards
Sale price
$10.70 USD/ea
Regular price
$11.70 USD
$0.00 USD
Sale price
$10.70 USD/ea
Regular price
$11.70 USD
$0.00 USD
38" / 10 Yards
38" / 10 Yards
Sale price
$32.42 USD/ea
Regular price
$36.40 USD
$0.00 USD
Sale price
$32.42 USD/ea
Regular price
$36.40 USD
$0.00 USD
38" / Full Roll (Approx. 80 Yards)
38" / Full Roll (Approx. 80 Yards)
Sale price
$266.50 USD/ea
Regular price
$266.50 USD
$0.00 USD
Sale price
$266.50 USD/ea
Regular price
$266.50 USD
$0.00 USD
50" / 1 Yard
50" / 1 Yard
Sale price
$5.20 USD/ea
Regular price
$5.20 USD
$0.00 USD
Sale price
$5.20 USD/ea
Regular price
$5.20 USD
$0.00 USD
50" / 3 Yards
50" / 3 Yards
Sale price
$14.82 USD/ea
Regular price
$14.82 USD
$0.00 USD
Sale price
$14.82 USD/ea
Regular price
$14.82 USD
$0.00 USD
50" / 10 Yards
50" / 10 Yards
Sale price
$45.50 USD/ea
Regular price
$45.50 USD
$0.00 USD
Sale price
$45.50 USD/ea
Regular price
$45.50 USD
$0.00 USD
50" / Full Roll (Approx. 80 Yards)
50" / Full Roll (Approx. 80 Yards)
Sale price
$289.12 USD/ea
Regular price
$289.12 USD
$0.00 USD
Sale price
$289.12 USD/ea
Regular price
$289.12 USD
$0.00 USD

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What To Expect When You Order Fabric Rolls

Works Great For:

Marine

Boat Building & Repairs

Aerospace

Built for airplane specs

Automotive

Fiberglass car body repair

Fiberglass Chop Strand Mat - Boat Suppliers

Product Comparison

3/4 oz Chopped Strand Mat

0.75oz Fiberglass Chopped Strand Mat

Flexible & lightweight fiberglass mat.

$3.12

-

$3.12

SHOP NOW

Flexbility

Volume / Build Up

Epoxy Usage

Specifications

Ideal for:
- Spots where flexibility is needed

- Keeping parts lightweight
- General fiberglass work.
- Marine, Auto & Aerospace Use

Compatible with:
- Polyester resin
- Vinyl ester resins for superior adhesion.

Resin Requirements:
- 38" Width: Approximately 12 oz of resin per yard
- 50" Width: Approximately 16 oz of resin per yard

Weight
0-3/4 oz per square foot
(6.75oz per square yard)

229 gsm

Perfect for Marine, Automotive, and DIY Projects

Product Data Sheet

1.5oz Fiberglass Chopped Strand Mat

1.5oz Fiberglass Chopped Strand Mat

Balance of flexibility and strength.

$3.91

-

$4.16

SHOP NOW

Flexbility

Volume / Build Up

Epoxy Usage

Specifications

Ideal for:

- Structural reinforcement

- Repairs

- General fiberglass work.

- Marine, Auto & Aerospace Use


Compatible with:


- Polyester resin
- Vinyl ester resins for superior adhesion.

Resin Requirements:
- 38" Width: Approximately 24 oz of resin per yard
- 50" Width: Approximately 32 oz of resin per yard

Weight:
1-1/2 oz per square foot
(13.5oz per square yard)

458 gsm


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

Product Data Sheet

2oz Fiberglass Chopped Strand Mat

2oz Fiberglass Chopped Strand Mat

Maximum strength and build up.

$5.10

SHOP NOW

Flexbility

Volume / Build Up

Epoxy Usage

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

3/4 oz Chopped Strand Mat

0.75oz Fiberglass Chopped Strand Mat

Flexible & lightweight fiberglass mat.

$3.12

-

$3.12

SHOP NOW

Flexbility

Volume / Build Up

Epoxy Usage

Specifications

Ideal for:
- Spots where flexibility is needed

- Keeping parts lightweight
- General fiberglass work.
- Marine, Auto & Aerospace Use

Compatible with:
- Polyester resin
- Vinyl ester resins for superior adhesion.

Resin Requirements:
- 38" Width: Approximately 12 oz of resin per yard
- 50" Width: Approximately 16 oz of resin per yard

Weight
0-3/4 oz per square foot
(6.75oz per square yard)

229 gsm

Perfect for Marine, Automotive, and DIY Projects

Product Data Sheet

1.5oz Fiberglass Chopped Strand Mat

1.5oz Fiberglass Chopped Strand Mat

Balance of flexibility and strength.

$3.91

-

$4.16

SHOP NOW

Flexbility

Volume / Build Up

Epoxy Usage

Specifications

Ideal for:

- Structural reinforcement

- Repairs

- General fiberglass work.

- Marine, Auto & Aerospace Use


Compatible with:


- Polyester resin
- Vinyl ester resins for superior adhesion.

Resin Requirements:
- 38" Width: Approximately 24 oz of resin per yard
- 50" Width: Approximately 32 oz of resin per yard

Weight:
1-1/2 oz per square foot
(13.5oz per square yard)

458 gsm


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

Product Data Sheet

2oz Fiberglass Chopped Strand Mat

2oz Fiberglass Chopped Strand Mat

Maximum strength and build up.

$5.10

SHOP NOW

Flexbility

Volume / Build Up

Epoxy Usage

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

FAQ

Frequently Asked Questions

Fiberglass Chop Strand Mat - Boat Suppliers

CSM is ideal for hand lay-up and open-mold applications. It’s used in boat building, mold making, and general fiberglass repair to create strong laminates, fill voids, and provide a smooth finish when layered with polyester resin.

CSM can be easily cut with scissors or a utility knife. For complex curves or better blending of layers, it can be torn by hand to help it conform to the mold shape more easily.

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.

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.

Most CSM is designed for polyester or vinyl ester resin because the binder in standard mat doesn’t dissolve in epoxy. However, epoxy-compatible chopped strand mat is available and should be used if you’re working with epoxy systems.

On average, you’ll need about 1.2 to 1.5 times the weight of the mat in resin. For example, 1.5 oz CSM will require roughly 20–25 oz of resin per yard. Use our Epoxy Calculator to estimate your resin needs, adjusting for polyester if necessary.