Long Island’s #1 Source for Composite Raw Material

We are Long Island's Largest Inventory of Fiberglass Supplies!

We Keep Our Warehouse Fully Stocked for All Your Needs.

Welcome To Reinforced Plastics Lab. Call Us Today at (631) 249.5490
We are temporarily open from 7AM-1PM Monday thru Friday

Hand Sanitizer is Available for Purchase!


View our large selection of fiberglass supplies and much more...

Click Here


Questions about our products? Visit our FAQ page for what you need.

Click Here

Contact Us

Call our office today for more information about our company and inventory.

Click Here

Fiberglass Supplies

Product Spotlight

Reinforced Plastics Lab has a wide variety of products, ranging from Vinyl Ester & Polyester Resins to Pigments & Powders to Solvents & Additives to Fiberglass Supplies and so much more. Though located on Long Island, New York, we ship nationwide! Call or visit our store today for your everyday needs.

We also carry a large stock of miscellaneous products such as:

Brushes, Rollers, Paint Trays, Tyvek Suits, Rubber Gloves, Goggles, Respirators, Wedges, Drum Faucets, Squirrel Mixers, GelCoat Cup Guns, Plastic & Paper Buckets, Sanding Disks, Steel Rollers, Mixing Sticks and much, much more.

Fiberglass Supplies

About Reinforced Plastics Lab

Reinforced Plastics Lab is a distributor of composite raw material, serving the composites manufacturing industry for over 35 years. Reinforced Plastics Lab maintains a large inventory of supplies for your composite need. We are committed to providing the best quality products, excellent service and an on-time delivery. We have a wide range of products ranging from fiberglass supplies, to epoxy resins, to much more! So please, contact us today to learn more about all we offer. When you reach out, we can provide you with all of the necessary purchasing details..

Nationwide Distributor 

Call 631-249-5490 Today!