Premium Chopped Strand Mat Fiberglass Sheet – 40x40 Inches, 300 GSM

Shazam’s Premium Chopped Strand Mat (CSM) Fiberglass Sheet is a high-quality reinforcement fabric measuring 40x40 inches and weighing 300 GSM. This versatile mat is made from randomly distributed glass fibers held together by a binder, making it ideal for various structural, repair, and insulation applications.

Used extensively in composite fabrication, this fiberglass mat is perfect for projects involving polyester or epoxy resins. Whether you’re strengthening surfaces, repairing damaged boats or automotive parts, or creating custom molds, this mat offers excellent adhesion, strength, and durability.

Ideal for industrial, marine, DIY, and home repair use, it provides resistance to heat, moisture, and corrosion. It’s an essential material for professionals and hobbyists seeking long-lasting results in composite and repair work.

Key Features

• High-strength chopped strand fiberglass mat

• Standard weight: 300 GSM for balanced strength and flexibility

• Sheet size: 40 x 40 inches (approx. 100cm x 100cm)

• Excellent adhesion with polyester and epoxy resins

• Heat-resistant and corrosion-resistant

• Compatible with compression molding and hand lay-up methods

• Easy to cut, handle, and shape to desired size

• Suitable for curved or irregular surfaces

• Durable and long-lasting performance

• Non-toxic and safe for industrial and hobby use

Applications

• Marine fiberglass repair (boats, kayaks, hulls)

• Car body panel repairs and moldings

• Composite panels for furniture, enclosures, and equipment

• Industrial equipment insulation

• Custom mold making and casting

• Heat-resistant lining or paneling

• DIY structural repair projects

• Wind energy and aerospace component repairs

• Pipe wrapping and tank reinforcements

• RC vehicle and drone repairs

Specifications

• Material: Chopped Strand Fiberglass

• GSM (Grams per Square Meter): 300

• Size: 40 inches x 40 inches (1.0m x 1.0m)

• Binder: Emulsion bonded

• Resin Compatibility: Polyester, Epoxy, Vinyl ester

• Color: White/Off-white

• Flexibility: Moderate

• Thickness: Approx. 1.2–1.5mm

Storage & Handling

• Store in a dry, clean environment

• Avoid exposure to moisture

• Wear gloves and mask while handling

• Cut with scissors or shears for precise shaping