

🛠️ Build stronger, smarter, and smoother with every layer!
This 1 Oz. Fiberglass Chopped Strand Mat by Griffco Products offers a 3-yard by 50-inch sheet designed for professional composite fabrication. Ideal for hand layup, vacuum bagging, or molding, it delivers uniform strength in all directions and precise mold conformity. Compatible with epoxy, polyester, and vinyl ester resins, it builds thickness at 0.03 inches per layer, making it a reliable choice for industrial-grade reinforcement and repair projects.











| ASIN | B01N20MS32 |
| Best Sellers Rank | #344,764 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #183 in Fiberglass Raw Materials |
| Brand | Griffco Products |
| Brand Name | Griffco Products |
| Color | White |
| Customer Reviews | 4.6 out of 5 stars 313 Reviews |
| Global Trade Identification Number | 00867327000300 |
| Grade Rating | Industrial |
| Item Form | Sheet |
| Item Shape | Sheet |
| Item Thickness | 0.03 Inches |
| Manufacturer | Griffco Products |
| Material | fiberglass |
| Shape | Sheet |
| Unit Count | 1 Ounce |
H**N
Does the job!
Used this repair the shower pan in my grandparents bathroom
J**E
Excellent Mat
Great Quality Mat, Very Corse Mat for the cost! Fills very well and wets excellent! Makes great quality strong Fiberglass with minimal amount of resin!
K**R
Perfect
Great quality
G**E
Worked great with epoxy resin.
Fiberglassmat,wetted out easily. I really could have used a heavier mat but layering worked fine.
R**K
EASY TO WORK WITH.
I used product to repair my pond prowler plastic boat that sustained a hole in the aft due to fire. It was my first time making such a repair and I must say it turned out great. The holed was patched and easily sanded. I painted it and was back on the water with a complete waterproof repair. Thumbs up
A**R
Lots of fiberglass for a cheap price
I purchased to make a fan shroud. I used five layers and still have plenty left to probably make two more fan shrouds. Overall I'm happy.
T**E
Sheet of chop mat
After reading others review of this product I was apprehensive to purchase however this product worked perfectly. Yes I agree where the sheet was folded the fiberglass mat gets frayed but most people are going to cut this mat up into small sections to make it usable. Chances are if this does not satisfy your need for chop mat then you probably wouldn't be making a purchase off Amazon anyhow.
1**1
Yup its powdered.
You can see the powder in the bag so its the epoxy compatible stuff, its folded but not compressed, when I unfolded it on the table it laid flat right away, I didn't see any damage at the folds or feel any weak spots. Be gentle with this it seems more fragile than the mat held together with styrene for polyester resin, overall I'm happy with this, if I need more I WILL BUY THIS AGAIN.
Trustpilot
2 weeks ago
2 weeks ago