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Glass tape, also known as fibreglass tape, is a non‑adhesive reinforcement material widely used in fibreglass repairs, composite builds, and GRP construction. Its strength, ease of use, and compatibility with multiple resin systems make it a popular choice for both professional builders and DIY repairers.
Unlike adhesive-backed tapes, glass tape relies on woven glass fibre strands for strength. When saturated with resin, it forms a rigid, durable structure that reinforces joints, edges, and seams while helping to create a smooth, professional finish.
For best results, apply glass tape after shaping and fairing the surface, but before applying the final coating.
Builders commonly use glass tape to strengthen joints, reinforce edges, and improve structural integrity in composite projects such as boats, kayaks, and GRP roofing systems.
Glass tape contains no binder, making it highly versatile and suitable for use with:
You can apply glass tape using either the wet method or dry method. Both techniques work well for large and small areas, though the dry method is often preferred due to the tape’s lightweight nature.
For wider areas, use multiple strips of glass tape and overlap each join by approximately 50mm to ensure consistent strength.
Repeat for additional layers if required
Once the resin has cured, sand the surface as needed before finishing.
The dry method is particularly useful for larger or wider repair areas.
Remove excess resin while ensuring the weave remains fully filled. Once cured, sand to achieve the desired finish.
Glass tape is ideal for reinforcing joints, trims, and decking seams on flat roofs. Its thinner profile compared to glass bandage results in reduced visibility and a smoother final appearance.
In marine applications, builders use glass tape to reinforce hull seams, joints, and edges, particularly during small repairs or structural upgrades.
Glass tape is commonly applied along keel lines, centre seams, and high‑wear areas where abrasion from stones or launching surfaces is most likely.
At Tricel Composites, we supply high‑quality glass tapes in widths of:
All tapes are supplied in 50‑metre rolls, suitable for a wide range of fibreglass and composite applications.
Glass tape is used to reinforce joints, seams and edges in fibreglass and composite projects, improving strength and durability while maintaining a smooth surface.
No. Glass tape contains no adhesive or binder, meaning it must be applied using resin and is compatible with polyester, epoxy and polyurethane systems.
Glass tape is thinner and more precise, making it ideal for joints and seams, while glass bandage is heavier and better suited for broader reinforcement areas.
Yes. For larger areas or when joining strips, overlap glass tape by approximately 50mm to maintain consistent strength.
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