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Product Details

Fiberglass Mat, also known as Chopped Strand Mat or CSM for short, is a non-woven material typically used for laminate build-up and repair work. It consists of glass fibers laid randomly across each other and held together by a styrene binder.

Polyester is the preferred resin for wetting out this form of glass fiber material as it readily dissolves the styrene bonding agent.

Offered in various weights per square foot. The lightest version, veil mat, is used commonly as a finishing layer to mask any print-thru in a laminate schedule. This particular veil mat uses longer, thinner fibers than heavier mat weights also offered here. Think angel hair pasta to spaghetti fibers. Coarser, heavier mat is commonly used for bulk, random axis strength buildup and is also an excellent initial layer when bonding repair work.

Reviews for Fiberglass Mat

10 of 24 Reviews

July 17, 2021

Fiberglass Mat
By S/V Brass Ring from Charleston SC

Verified Purchase

Not much to say about Fiberglass Mat, it's just what it is however what I can say is...how impressed I am with Total Boats perfect packaging and fast shipping. This is the beginning of a beautiful relationship.

Bottom Line Yes, I would recommend to a friend

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July 3, 2021

I should have used a thicker matt
By Louie from Summit Ms

Verified Purchase

It was my first job I didn't know what to order perhaps I should have talked to the help desk prior to ordering. I had to layer twice

Bottom Line Yes, I would recommend to a friend

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June 2, 2021

Recommend
By DIYJunkie from Oakland

Verified Purchase

Great product. Fast shipping. Best price.

Bottom Line Yes, I would recommend to a friend

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May 5, 2021

Relatively easy to work with, but did make a bit of a mess
By Dinghy Dan from Mount Prospect, IL

Verified Purchase

This was my first time working with CSM, so hard to compare to other CSM products. It did what I wanted it to do in repairing and reinforcing a hull crack in a small sailboat. I'm not sure how strong the binders in this product are supposed to be, but I found that when I created a tear to shape the piece I needed, the frayed edges unraveled pretty easily, creating a lot of loose fiberglass strands in my workspace. Not the end of the world - just a bit messy. Overall, happy with the performance of this product.

Bottom Line Yes, I would recommend to a friend

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February 18, 2021

I would & will use again
By Farm 1991 from FDL WI

Verified Purchase

Used in multi lamination in replacing transom

Bottom Line Yes, I would recommend to a friend

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December 15, 2020

I would buy this again.
By robb454 from hays,ks.

Verified Purchase

good quality and decent price.

Bottom Line Yes, I would recommend to a friend

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October 4, 2020

Exactly what I ordered and delivered on time.
By Bill from Tempe, AZ

Verified Purchase

Exactly what I ordered and on time. Great place to work with. Good advice, great products, what could be better?

Bottom Line Yes, I would recommend to a friend

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May 15, 2020

Pretty straight forward material
By Mike from NY

Verified Purchase

This is my first time doing any type of fiberglass work on my boat. The CSM fibers end up coagulating together and make a mess. This might be a norm with fiberglass work but that's the only annoyance I found with it.

Bottom Line Yes, I would recommend to a friend

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May 12, 2020

Great for fast build up
By Timg from Tustin ca.

Verified Purchase

I use fiberglass mat as a middle layer between woven layers to add bulk

Stringer repair

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March 25, 2020

no
By M from RI

Verified Purchase

It's too thin. I think toilet paper is thicker.

Bottom Line No, I would not recommend to a friend

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