Shop Composites

View all
4oz Fiberglass Cloth

Fiberglass

5.7oz 3K carbon fiber twill fabric partly unrolled from its cardboard core, 2x2 diagonal weave across the width.

Carbon Fiber

1 gallon white jug of Silmar 249 clear polyester surfboard resin, blue Boat Suppliers label with UV inhibitor and danger warnings.

Resins

White peel ply release fabric unrolled flat with the rounded roll edge alongside, its smooth, tightly woven surface catching the light

Vacuum Bagging

Boat Suppliers two-part urethane pour foam kit, metal Part A and Part B cans with a cured tan rigid foam mushroom sample between them.

Foam & Core Materials

Boat Suppliers fumed silica thickener in a 1 quart jar

Fillers & Additives

Economy fiberglass roller with an aluminum coil head on a bent wire frame and black plastic handle with hang hole, shown from above

Fiberglass Tools

5.8 oz carbon/Innegra hybrid 2x2 twill fabric on a cardboard core, black carbon and white Innegra tows in a diagonal pattern

Hybrid Fabrics

First Quality Materials

Shop Fiberglass Fabrics

View all
Roll of 1708 biaxial fiberglass on a cardboard core, mat backer on the outside and the stitched biaxial face showing on the unrolled length1708 biaxial fiberglass corner peeled back by a black-gloved hand, stitched ±45° glass on one face and chopped strand mat on the other
Boat Suppliers

1708 Biaxial Fiberglass

$12.95 USD
$12.95 USD
$12.95 yd

Width
Length
Close-up of 1.5 oz fiberglass chopped strand mat showing random white glass fibers, with a US quarter on top for scale1 1/2 oz Chopped Strand Mat
Boat Suppliers

1.5oz Fiberglass Chopped Strand Mat

$6.45 USD
$6.45 USD
$6.45 yd

Width
Length
6oz Fiberglass Cloth6oz Fiberglass Cloth Full Roll
Boat Suppliers

6oz Fiberglass E Cloth

$10.95 USD
$10.95 USD
$10.95 yd

Width
Length
4oz Fiberglass Cloth4oz Woven Fiberglass Cloth
Boat Suppliers

4oz Fiberglass E Cloth

$7.95 USD
$7.95 USD
$7.95 yd

Width
Length
Black-gloved hand holding the corner of 2 oz fiberglass chopped strand mat, showing its random glass fiber strandsChoosing Your Fiberglass Chopped Strand Mat Size
Boat Suppliers

2oz Fiberglass Chopped Strand Mat

$8.95 USD
$8.95 USD
$8.95 yd
Width
Length

Shop Resins

View all
Boat Suppliers Epoxy Resin KitBoat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers epoxy kit with 1 gallon Part A thin clear resin and 64 fl oz Part B slow epoxy hardener bottles.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers thin clear epoxy resin kit, 64 fl oz Part A laminating resin jug with 32 fl oz Slow Epoxy Hardener Part B bottle.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers epoxy resin kit, 16 fl oz thin clear laminating resin Part A bottle beside 8 fl oz Slow Epoxy Hardener Part B.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers epoxy resin kit, 32 fl oz thin clear laminating resin Part A bottle with 16 fl oz Slow Epoxy Hardener Part B.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers bulk epoxy resin kit with slow hardener, five 1-gallon Part A resin jugs plus three Slow Epoxy Hardener Part B bottles.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers epoxy kit with medium hardener, 8 fl oz thin clear resin Part A beside 2.67 fl oz Medium Epoxy Hardener Part B.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers epoxy kit with medium hardener, 64 fl oz thin clear resin Part A jug and 21.3 fl oz Medium Epoxy Hardener Part B.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers epoxy kit with fast hardener, 16 fl oz thin clear resin Part A beside 4 fl oz Fast Epoxy Hardener Part B bottle.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers epoxy kit with fast hardener, 32 fl oz thin clear resin Part A jug and 8 fl oz orange Fast Epoxy Hardener Part B.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers epoxy kit with fast hardener, 1-gallon thin clear resin Part A jug and 32 fl oz orange Fast Epoxy Hardener Part B.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers bulk epoxy kit with fast hardener, five 1-gallon resin Part A jugs plus two orange Fast Epoxy Hardener Part B containers.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers epoxy kit with fast hardener, 1-gallon thin clear resin Part A jug beside 32 fl oz orange Fast Epoxy Hardener Part B.Boat Suppliers epoxy resin kit: 16 fl oz Part A thin clear resin bottle with 5.3 fl oz Part B medium hardener.
Boat Suppliers

Boat Suppliers Epoxy Resin Kit – Thin, Clear, with Hardener

$34.95 USD
$34.95 USD
$1.46 floz

Boat Suppliers Table Top Kleer Kote epoxy resin kit, two 32 fl oz bottles, clear Part A resin and Part B hardener at 1:1 mix ratio.Boat Suppliers Table Top Kleer Kote epoxy resin kit, two 1-gallon jugs, clear Part A resin and Part B hardener at 1:1 mix ratio.
Boat Suppliers Table Top Kleer Kote epoxy resin kit, two 1-gallon jugs, clear Part A resin and Part B hardener at 1:1 mix ratio.Boat Suppliers Table Top Kleer Kote epoxy resin kit, two 1-gallon jugs, clear Part A resin and Part B hardener at 1:1 mix ratio.
Boat Suppliers

Boat Suppliers Table Top Kleer Kote Epoxy Resin

$44.99 USD
$44.99 USD
Boat Suppliers General Purpose Polyester Resin - 1 GallonGeneral Purpose Polyester Resin with Hardener - on the workshop bench
Boat Suppliers

General Purpose Polyester Resin with Hardener

$59.95 USD
$59.95 USD
$0.47 floz
Marine-grade polyester layup resin in a 32 fl oz metal can with a small MEKP hardener bottle, blue Boat Suppliers label.One gallon jug of marine-grade polyester layup resin with included MEKP hardener bottle, blue Boat Suppliers label.
One gallon jug of marine-grade polyester layup resin with included MEKP hardener bottle, blue Boat Suppliers label.One gallon jug of marine-grade polyester layup resin with included MEKP hardener bottle, blue Boat Suppliers label.
Five one-gallon jugs of marine-grade polyester layup resin grouped together, the 5 gallon bulk quantity option.One gallon jug of marine-grade polyester layup resin with included MEKP hardener bottle, blue Boat Suppliers label.
Boat Suppliers

Marine-Grade Polyester Layup Resin with Hardener

$34.95 USD
$34.95 USD
$1.09 floz

Boat Suppliers Polyester Surfboard Resin Silmar 249 - 1 QuartBoat Suppliers Polyester Surfboard Resin Silmar 249 - 1 Gallon
Boat Suppliers Polyester Surfboard Resin Silmar 249 - 1 GallonBoat Suppliers Polyester Surfboard Resin Silmar 249 - 1 Gallon
Five 1 gallon white jugs of Silmar 249 clear polyester surfboard resin grouped together, each with a blue Boat Suppliers label.Boat Suppliers Polyester Surfboard Resin Silmar 249 - 1 Gallon
Quart bottle of Boat Suppliers Silmar 249 polyester surfboard resin with UV inhibitors beside a red-tipped bottle of MEKP catalystBoat Suppliers Polyester Surfboard Resin Silmar 249 - 1 Gallon
Silmar

Clear Polyester Surfboard Resin - Silmar 249 with Hardener

$29.95 USD
$29.95 USD
$0.94 floz

Shop Carbon Fiber Fabrics

View all
5.7oz Plain Weave Carbon Fiber5.7oz 3K plain weave carbon fiber fabric on a cardboard core, showing the over-under checkerboard weave and cut edge.
Boat Suppliers

5.7oz 3K Plain Weave Carbon Fiber Fabric - 1st Quality

$56.95 USD
$56.95 USD
$56.95 yd
Width
Length
5.7oz 3K carbon fiber fabric roll in 2x2 twill weave, black tows draped off a cardboard core with a frayed cut edge.Gloved hand holding 5.7oz 3K carbon fiber fabric, black 2x2 twill weave showing diagonal pattern and frayed cut edge.
Boat Suppliers

5.7oz 3K 2x2 Twill Weave Carbon Fiber Fabric - 1st Quality

$56.95 USD
$56.95 USD
$56.95 yd
Width
Length
6oz x 50 inch wide 2x2 Twill Carbon Cloth - Stabilized Fabric6oz x 50 inch wide 2x2 Twill Stabilized Carbon Fiber
Boat Suppliers

6oz 3K 2x2 Twill Carbon Fiber Fabric – Stabilized

$60.95 USD
$60.95 USD
$60.95 yd
Width
Length
Close-up of 8.3oz 3K 4x4 twill carbon fiber fabric curling over a flat layer, black cloth with a large diagonal twill pattern and gold sheen8.3oz 3K 4x4 Twill Carbon Fiber Fabric - 1st Quality - image 2
Boat Suppliers

8.3oz 3K 4x4 Twill Carbon Fiber Fabric - 1st Quality

$70.95 USD
$70.95 USD
$70.95 yd
Width
Length
11 oz 6K 2x2 twill weave carbon fiber unrolled on a table, bold diagonal pattern with a fringed edge and white edge threadClose-up of 11 oz 6K 2x2 twill carbon fiber cloth lying flat, light raking across the bold diagonal tows of the weave
Boat Suppliers

11oz 6K 2x2 Twill Weave Carbon Fiber - 1st Quality

$63.95 USD
$63.95 USD
$63.95 yd
Width
Length

Marine Calculators

See All Boating Calculators
Boat Suppliers
Boat Suppliers
Boat Suppliers
Boat Suppliers

Our Blogs

See More
Fiberglass Explained: Cloth, Mat, Roving and Biaxial by Job
Buyer's Guides Fiberglass Fabrics
19 October 2026

Fiberglass Explained: Cloth, Mat, Roving and ...

Fiberglass by form: chopped strand mat, woven cloth, woven roving and 1708 biaxial, with weights,...

Read More
19 October 2026

Fiberglass Explained: Cloth, Mat, Roving and ...

Fiberglass by form: chopped strand mat, woven cloth, woven roving and 1708 biaxial, with weights,...

Read More
Gloved hand rolling gray epoxy barrier coat onto the underside of a fiberglass hull on jack stands in a metal boat shed, ahead of bottom paint
Repair & Maintenance Resin & Epoxy Systems
17 October 2026

Epoxy Barrier Coat Below the Waterline: Coats...

How many coats of epoxy barrier coat a hull needs (4 to 6, about 10 mil dry), the recoat window b...

Read More
17 October 2026

Epoxy Barrier Coat Below the Waterline: Coats...

How many coats of epoxy barrier coat a hull needs (4 to 6, about 10 mil dry), the recoat window b...

Read More
Roll of yellow and black carbon Kevlar twill fabric unrolled on a shop table with paper part patterns weighted on top, tape measure and scissors
Buyer's Guides Carbon Fiber & Kevlar
16 October 2026

Kevlar Carbon Fabric: How Many Yards and How ...

Kevlar carbon fabric by the yard: how to turn a part into a cut length and an epoxy quantity, wit...

Read More
16 October 2026

Kevlar Carbon Fabric: How Many Yards and How ...

Kevlar carbon fabric by the yard: how to turn a part into a cut length and an epoxy quantity, wit...

Read More
Gloved hand wetting out carbon fiber fabric with epoxy using a yellow plastic squeegee, Boat Suppliers carbon fiber roll on the bench behind
Carbon Fiber & Kevlar Tools & Techniques
15 October 2026

Carbon Fiber Fabric Layup Guide: Plies, Epoxy...

How to cut, wet out and lay up carbon fiber fabric by hand: 3K twill ply thickness, epoxy per squ...

Read More
15 October 2026

Carbon Fiber Fabric Layup Guide: Plies, Epoxy...

How to cut, wet out and lay up carbon fiber fabric by hand: 3K twill ply thickness, epoxy per squ...

Read More
Roll of black carbon fiber cloth unrolled on a workbench beside blue painter's tape and a yellow rotary cutter, Boat Suppliers box behind
Buyer's Guides Carbon Fiber & Kevlar
13 October 2026

Carbon Fiber Fabric Cloth: Twill vs Plain, 3K...

Carbon fiber fabric cloth buying guide: 2x2 twill vs plain weave, 3K vs 12K tow, 5.7 oz vs 11 oz,...

Read More
13 October 2026

Carbon Fiber Fabric Cloth: Twill vs Plain, 3K...

Carbon fiber fabric cloth buying guide: 2x2 twill vs plain weave, 3K vs 12K tow, 5.7 oz vs 11 oz,...

Read More