RayHong Fiberglass Repair Paste – Professional-Strength Bonding for Boats, Cars & More

Got cracks, gouges, scratches, or nicks in your fiberglass surfaces? The RayHong Fiberglass Repair Paste is your go-to solution. Engineered with a long strand fiber formula, this quick-dry putty delivers a strong, permanent bond that blends seamlessly into fiberglass hulls, decks, and car panels — without ruining your original finish.

Made in Mainland China.

Why Choose RayHong Fiberglass Repair Paste?

Quick Dry Formula: Sets in approximately 1 hour so you can sand, finish, and get back on the water faster.
Long Strand Fiber Technology: Provides superior structural integrity and bonding strength compared to standard putties.
High Viscosity, No-Sag: The thick paste stays exactly where you apply it — no dripping, no running.
High-Gloss Finish: Restores surfaces to a clean, polished look without affecting original paint.
Ready to Use: No mixing or two-part preparation required — just squeeze and apply.
Wide Coverage: Apply easily with a brush, roller, or small scraper for precise, controlled repairs.
Versatile Use: Ideal for fiberglass boats, car panels, decks, and other fiberglass or painted surfaces.
Long Shelf Life: 3-year shelf life for lasting value — store in a cool, dry place.

Product Specifications

Brand: RayHong
Item Type: Fiberglass Repair Paste (White)
Content: 20g
Item Weight: 45g
Special Feature: Long Strand Fiber Fiberglass
High-Concern Chemicals: None
Shelf Life: 3 Years
Storage: Cool, dry place
Origin: Mainland China

How to Use

Prepare the Surface: Sand the damaged area with sandpaper, making sure the sanding area is slightly larger than the crack or scratch. Wipe away all dust with a clean, dry cloth.
Apply the Paste: Squeeze out an appropriate amount and spread it with a small scraper in a thin, even layer. Do not apply thickly — a thin coat ensures proper drying. Avoid scraping back and forth repeatedly to prevent the coating from fluffing, cracking, or peeling. Note: This product is best suited for scratches and surface damage under 0.5 mm. For deeper damage, fill with putty first, sand smooth, then apply this paste.
Sand & Finish: After approximately 1 hour, wet-sand the repaired area with dampened sandpaper until smooth. If any air bubbles or small imperfections remain, repeat steps 2–3 until a flawless finish is achieved.

Important Notes

Color may vary slightly from images due to monitor settings and lighting conditions.
Please allow 1–3 cm deviation due to manual measurement.

Learn More About Safe Handling of Repair Materials

For safe handling and storage guidelines when working with adhesive and repair compounds, visit the U.S. Consumer Product Safety Commission (CPSC) for helpful consumer safety resources.

Learn more: Sealant

Frequently Asked Questions

Q: What surfaces can RayHong Fiberglass Repair Paste be used on?

A: This fiberglass repair paste is designed primarily for fiberglass boat hulls, decks, and car body panels. It works best on fiberglass and painted surfaces with cracks, nicks, gouges, or scratches under 0.5 mm deep. For larger damage, use a standard body putty first, sand smooth, then apply this paste as a finishing layer.

Q: Do I need to mix anything before applying the repair paste?

A: No! Unlike traditional two-part epoxy or resin repair kits, this paste is ready to use straight from the tube. Simply squeeze out the desired amount and apply directly to the prepared surface with a scraper, brush, or roller — no mixing required.

Q: How long does it take for the fiberglass repair paste to dry?

A: The paste typically dries within approximately 1 hour under normal conditions. Apply in a thin, even layer for best results — thicker applications may take longer to cure. Once dry, wet-sand with dampened sandpaper to achieve a smooth, high-gloss finish.

Q: Will the repair paste match the color of my fiberglass boat or car?

A: This product comes in white and is designed for white or light-colored fiberglass surfaces. For colored or dark surfaces, you may need to apply matching paint over the repaired area after it has fully dried and been sanded smooth.