--- product_id: 549329167 title: "1.5 Oz. Fiberglass Chopped Strand Mat - 3 Yards X 50\" Wide for Hand Layup, Vacuum Bagging or Molding Composites with Epoxy, Polyester or Vinyl Ester Resins" brand: "griffco products" price: "Β₯33153" currency: JPY in_stock: true reviews_count: 5 category: "Griffco Products" url: https://www.desertcart.jp/products/549329167-1-5-oz-fiberglass-chopped-strand-mat-3-yards-x store_origin: JP region: Japan --- # 3 yards continuous length uniform strength & stiffness 1.5 oz lightweight strength 1.5 Oz. Fiberglass Chopped Strand Mat - 3 Yards X 50" Wide for Hand Layup, Vacuum Bagging or Molding Composites with Epoxy, Polyester or Vinyl Ester Resins **Brand:** griffco products **Price:** Β₯33153 **Availability:** βœ… In Stock ## Summary > πŸ› οΈ Reinforce your projects with precision and ease β€” don’t get left behind! ## Quick Answers - **What is this?** 1.5 Oz. Fiberglass Chopped Strand Mat - 3 Yards X 50" Wide for Hand Layup, Vacuum Bagging or Molding Composites with Epoxy, Polyester or Vinyl Ester Resins by griffco products - **How much does it cost?** Β₯33153 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/549329167-1-5-oz-fiberglass-chopped-strand-mat-3-yards-x) ## Best For - griffco products enthusiasts ## Why This Product - Trusted griffco products brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Seamless 3-Yard Roll:** Uninterrupted 50" width for large-scale projects without breaks - β€’ **Lightweight Yet Durable:** 1.5 oz fiberglass mat balances ease of handling with robust reinforcement - β€’ **Superior Mold Conformity:** Outperforms woven roving by hugging mold details for flawless finishes - β€’ **Multi-Resin Compatibility:** Perfectly bonds with epoxy, polyester, and vinyl ester resins for versatile use - β€’ **Precision Thickness Build-Up:** Adds consistent 0.045" thickness per layer for controlled composite strength ## Overview This 1.5 oz fiberglass chopped strand mat from Griffco Products offers a continuous 3-yard by 50" wide roll designed for hand layup, vacuum bagging, and molding with epoxy, polyester, or vinyl ester resins. Engineered for uniform strength and stiffness, it provides a reliable 'print through' barrier and bond layer, conforming better to mold details than woven roving. Ideal for transportation, marine, recreation, and construction industries, it delivers consistent thickness build-up and professional-grade reinforcement. ## Description 50" wide, continuous 3 yard linear length of the finest quality 1.5 oz weight Chopped Strand Mat. Folded and packaged as shown in pictures. Can be used in a variety of hand lay-up applications with epoxy, polyester and vinyl ester resins. Used in the transportation, recreation, marine and construction industries. Review: Great Review: Love it. So affordable! I have bought this 5 times! ## Features - Use for "print through" barrier between gel coat and woven roving - Use as a bond layer between layers of woven roving - Use to build thickness - about 1/22" or .045" per layer - Uniform strength and stiffness in all directions - Conforms to mold details better than woven roving ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07GN1BLC4 | | Brand | Griffco Products | | Brand Name | Griffco Products | | Country of Origin | USA | | Customer Reviews | 4.7 out of 5 stars 458 Reviews | | Global Trade Identification Number | 00867327000331 | | Grade Rating | Industrial | | Item Form | Roll | | Item Shape | Sheet | | Item Thickness | 0.05 Inches | | Item Weight | 3.52 Pounds | | Manufacturer | Griffco Products | | Material | Fiberglass | | Material Type | Fiberglass | | Model Number | CSM450GW1270MM | | Number of Items | 1 | | Part Number | CSM450GW1270MM | | Shape | Sheet | ## Product Details - **Material:** Fiberglass - **Brand:** Griffco Products - **Shape:** Sheet - **Item Thickness:** 0.05 Inches - **Item Form:** Roll ## Images ![1.5 Oz. Fiberglass Chopped Strand Mat - 3 Yards X 50" Wide for Hand Layup, Vacuum Bagging or Molding Composites with Epoxy, Polyester or Vinyl Ester Resins - Image 1](https://m.media-amazon.com/images/I/81RetEynb2L.jpg) ![1.5 Oz. Fiberglass Chopped Strand Mat - 3 Yards X 50" Wide for Hand Layup, Vacuum Bagging or Molding Composites with Epoxy, Polyester or Vinyl Ester Resins - Image 2](https://m.media-amazon.com/images/I/715a8KrGDpL.jpg) ![1.5 Oz. Fiberglass Chopped Strand Mat - 3 Yards X 50" Wide for Hand Layup, Vacuum Bagging or Molding Composites with Epoxy, Polyester or Vinyl Ester Resins - Image 3](https://m.media-amazon.com/images/I/A1Ro4wdJR0L.jpg) ![1.5 Oz. Fiberglass Chopped Strand Mat - 3 Yards X 50" Wide for Hand Layup, Vacuum Bagging or Molding Composites with Epoxy, Polyester or Vinyl Ester Resins - Image 4](https://m.media-amazon.com/images/I/81D77-MO38L.jpg) ![1.5 Oz. Fiberglass Chopped Strand Mat - 3 Yards X 50" Wide for Hand Layup, Vacuum Bagging or Molding Composites with Epoxy, Polyester or Vinyl Ester Resins - Image 5](https://m.media-amazon.com/images/I/91n9van03lL.jpg) ## Questions & Answers **Q: How is the weight of 1.5 oz calculated?? "cloth is sold according to its weight per square yard" this is 11.5 oz/sy?!** A: Yes woven cloth and roving are specified differently. Chopped strand mat is specified in either grams per square meter or ounces per square foot. In the case of this product it would be 450 grams per square meter or 1.5 oz per square foot. We also offer a 1 oz version of this product (also epoxy compatible but the product page is out of date) it is ASIN: B01N20MS32. I hope this answers your question. **Q: can you lay carpet on this? If so what kind of carpet glue should I use on boat carpet? Can this be applied to treated plyboard?ly** A: This cloth can be applied to wood or metal using fiberglass resin. Carpet can be applied as with any other smooth surface. I don't know of a specific adhesive for marine carpet. **Q: Does this product use a styrene binder? Can I use it with epoxy?** A: It has a silane binder that is compatible with polyester, epoxy and vinylester resins. It is powder bound so it comes apart a little easier than emulsion bound and wets out easily. **Q: Could you use this to reinforce craft concrete or concrete slabs?** A: I think you would want loose fibers for that. Most likely in the 1/2" to 1" length. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great *by D***R on 14 September 2025* ### ⭐⭐⭐⭐⭐ Love it. So affordable! I have bought this 5 times! *by H***I on 18 October 2025* ### ⭐⭐⭐⭐⭐ Great fiberglass *by N***E on 27 July 2023* ## Frequently Bought Together - 1.5 Oz. Fiberglass Chopped Strand Mat - 3 Yards X 50" Wide for Hand Layup, Vacuum Bagging or Molding Composites with Epoxy, Polyester or Vinyl Ester Resins - TotalBoat Polyester Laminating Resin - Marine Grade Fiberglass Resin and MEKP Catalyst for Layups and Repairs (Gallon) - Fiberglass Roller Tools Kit, 3pcs Fiberglass Resin Laminating Bubble Roller Set for Tub Shower Bathtub Boat Repair --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/549329167-1-5-oz-fiberglass-chopped-strand-mat-3-yards-x](https://www.desertcart.jp/products/549329167-1-5-oz-fiberglass-chopped-strand-mat-3-yards-x) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-24*