Fiberglass Cloth & Resin Kit - 5 Yards 6oz Cloth 50" Wide + Resin

SKU:SK-CLO5P

$109.95 USD

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20 in stock

Resin: Gallon Polyester

Gallon Polyester Half-Gallon Epoxy Kit Gallon Vinyl Ester

Quantity

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Five yards of 6oz plain-weave E-glass, 50 inches wide, with the resin to lay it up. 6oz cloth is the finish and sheathing fabric: surfboards, paddle boards, wood boats, bar tops, canoe and kayak sheathing, and any laminate where you want strength with a smooth, clear finish.

What is in the kit:

5 yards x 50" of 6oz woven fiberglass cloth, folded pack (about 62 sq ft)
Your choice of resin: 1 Gallon of clear Silmar 249 polyester with MEKP (surfboard standard, UV inhibited), or a half-gallon marine epoxy kit with medium hardener (85oz mixed; best adhesion, wood boats and repairs over old laminate)
6 mixing cups and mixing sticks

Coverage: 6oz cloth is light; either resin choice fully wets out all 5 yards with resin to spare for fill coats.

Specifications

Reinforcement: 5 yd of 6 oz plain weave E cloth, 50" wide
Resin options: gallon polyester, gallon vinyl ester, or half-gallon epoxy kit
Coverage: any of the three resin options covers all 5 yards comfortably
Also in the kit: 6 graduated cups, 6 stir sticks
6 oz cloth is the standard sheathing and finish layer, fine enough to sand fair
Epoxy option is non-hazmat; polyester and vinyl ester ship ground only

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How to use this kit

Five yards of 6 oz plain weave E-glass with the resin to lay it up. Every kit ships with this same sheet printed and in the box.

Safety: If you chose polyester: MEKP hardener is corrosive, so gloves and eye protection any time it is open, and flush an eye with water for 15 minutes and get medical help. Polyester gives off styrene, so ventilate hard. If you chose epoxy: resin and hardener are skin sensitizers and repeated contact can start a permanent allergy, so gloves on and wash with soap and water, never solvent. Either way, mixed resin heats up in the pot: never cap a mixed cup and pour leftovers out thin to cure.

What is in the kit

5 yd 6 oz woven fiberglass cloth, 50 in wide, folded packabout 62 sq ft
1 Resin, your choicegallon Silmar 249 polyester with MEKP, or half-gallon marine epoxy kit
6 / 6 Mixing cups, mixing sticks

You supply: a squeegee or laminating roller, chip brushes, gloves, a respirator, sandpaper, and fumed silica or fairing filler for fill coats.

Mixing (check which resin you chose)

Polyester	1.5 percent MEKP, 10 drops per ounce
Epoxy	3 parts resin to 1 part hardener
Either way	Mix only what you can use in 15 min

This kit ships with the resin you selected. Polyester uses MEKP by percentage; epoxy uses a fixed volume ratio and never varies. Confirm against the label on your container.

Coverage: 6 oz cloth is light, so either resin choice fully wets out all 5 yards with resin left over for fill coats.

The job, start to finish

1

Prep the surface

New mold: wax and release it thoroughly. Old laminate: grind off all gloss, gelcoat and contamination back to solid glass, then wipe with acetone. Polyester is a poor secondary bond, so every bit of its grip comes from clean, freshly ground surface.

2

Cut everything dry

Cut your cloth to size, allowing a few inches of overhang you can trim after cure. Cut all of it before you mix a drop, because once resin is catalyzed you have about 15 minutes and no time to be looking for scissors.

3

Mix small batches

Catalyze only what you can lay up in 15 minutes, using the chart at left. Stir thoroughly but slowly to avoid whipping in air, and scrape the sides of the cup. Pour it out of the mixing cup as soon as it is mixed: resin left in a deep cup heats up and kicks early.

4

Wet out

Brush resin on, lay the cloth in, and stipple straight down with the brush until it turns translucent. Do not brush sideways: that drags the fibers out of place. Work wet on wet through your stack rather than waiting for cures between plies.

5

Fair and topcoat

Once cured, knock down the high spots and fill the weave with resin thickened to a peanut butter consistency with fumed silica. Sand fair through the grits. Laminating resin has no UV protection or wax, so it needs gelcoat or paint over it before it lives outside.

Works onSurfboards, paddle boards, wood boats, bar tops, canoe and kayak sheathing, and any laminate wanting strength with a smooth clear finish.

Not forHeavy structural buildup. 6 oz cloth is a finish and sheathing fabric; use 1708 biaxial where you need real thickness and strength.

If something goes wrong

Cloth still looks white

It is dry, not wet out. Stipple more resin in until it goes clear or that area has no strength.

Weave still shows after coating

Normal after one coat. It takes two or three fill coats to bury 6 oz weave.

Cloth shifted during layup

Squeegee from the centre outward, never sideways from an edge.

Laminate feels tacky

Normal for polyester laminating resin, which stays tacky on top so the next layer bonds.

Bubbles under the cloth

Work them to the nearest edge with the squeegee while wet, before it gels.

Cloth goes clear when fully wet out, which is how you check for dry spots. Fill coats bury the weave. Gelcoat, paint and varnish are at boatsuppliers.com.