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Monday 8am - 4:30pm Tuesday 8am - 4:30pm Wednesday 8am - 4:30pm Thursday 8am - 4:30pm Friday 8am - 4:30pm

Sherfab Unlimited, Inc.

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Ontario, CA
Sherfab Unlimited, Inc.

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Sherfab Unlimited Inc. is a composite materials distribution company providing the highest quality materials and customer service.

10/31/2026

Happy Halloween from the team at Sherfab! 🎃 Wishing you a spooky day and perfectly cured projects no tacky gel coats allowed! 👻

10/30/2026

Topcoat Additive, the Easy Route

If you want a smooth finish without extra steps, try a topcoat additive. It saves time, works well for beginners and pros alike, and can cost less over time once you factor in the materials and labor you save. Mix it in, apply, and let it cure. No separate PVA step and no washing off afterward.

sherfab.com/pro-tips

10/23/2026

Still tacky after curing? That’s not a mixing error; that’s air inhibition. Oxygen blocks the final stage of the curing reaction, and with standard gel coat outside a mold, it’s totally normal.

The fix: seal out the air on your final coat with a surfacing agent or PVA. A topcoat additive works too; just apply it to your last one or two coats.

10/16/2026

Pro Tip: The Surfacing Agent Method

This is the classic way to get a full cure. Mix a wax-like surfacing agent into your gel coat at about 4%. As it cures, the agent rises to the surface and seals out air. Use it only on your final coat, since the next layer won’t bond over it. Plan on light sanding afterward, then wet-sand and polish.

Got a project on the bench? Tag us with and get 10% off your next order.

10/09/2026

Pro Tip: Keep your gel coat out of the sun.

Heat speeds up the cure and cuts your working time, so the surface can set before you’ve finished laying it down. Work in a shaded spot or wait for an overcast day. On hot afternoons, move the job indoors or hold off until the temperature drops.

Got a project on the bench? Tag us with and get 10% off your next order.

09/15/2026

Hot weather can be rough on more than just you. It can affect your gel coats, too.

When temperatures climb above 85°F, gel coats can begin to thicken, separate, or even cure prematurely before you open the can.

For best results, keep containers out of direct sunlight and away from hot garages, trailers, or vehicles. Store them in a cool, well-ventilated space between 60°F and 80°F whenever possible.

More tips for working with composites and fiberglass materials:
sherfab.com/pro-tips

09/01/2026

Two-time national champions!
Huge congrats to the .helio.tech solar car team on taking 1st place with their four-seater solar car, officially making them a two-time national championship team.
We were proud to donate carbon fiber, peel ply, and resin for this build. Seeing those materials go into a championship-winning car is exactly why we do this.
Next up, the team is already building their advanced one-seater for the 2027 season. We can't wait to see it.
Congrats, Heliotech. Keep going.

07/06/2026

BLOWOUT SALE
Full Rolls of our 1597 Cloth — now just $1,030/roll. That's $250 in savings, and we only have 11 left at this price. Don't sleep on it.

Link in bio to order.

03/08/2026

This International Women’s Day, we’re proud to celebrate RacerX2, an all-girls engineering solar car team using teamwork, skill, and determination to bring their project to life.

From layups to full-scale fabrication, every step takes problem-solving, patience, and collaboration. They’re not just building a solar car, they’re helping inspire the next generation of girls in STEM.

02/14/2026

Like a high-quality resin, some bonds are just meant to last, especially the one between you and Sherfab. Happy Valentine’s Day to our favorite makers and builders!

Address

1740 E. Monticello Court
Ontario, CA
91761

Opening Hours

Monday	8am - 4:30pm
Tuesday	8am - 4:30pm
Wednesday	8am - 4:30pm
Thursday	8am - 4:30pm
Friday	8am - 4:30pm

Telephone

+19099232200

Website

https://www.sherfab.com/

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