Fiberglass Repair Kit – Ultimate Guide

How to Use a Fiberglass Repair Kit – The Right Way

There are several options for repairing fiberglass. One of the options is homemade, using fiberglass and resin, in a very traditional way. The other option is using a fiberglass repair kit that exists in the market.

fiberglass repair kit

Here we tell you the two options for fiberglass repair, homemade and with one of the best fiberglass repair kits in the market.

Homemade Repair Of Fiberglass

  • fiberglass (recommended fiberglass chopped strand mat is the most commonly used reinforcement in composites. Randomly dispersed fiber mat that has equal strength in every direction. Compatible with resin and epoxy. Uniform strength and stiffness in all directions).
  • resin (epoxy)
  • hardener (recommended fast hardener)
  • glass
  • sandpaper
  • scissors
  • gloves
  • material to be glued
how to repair with fiberglass and epoxy

Fiberglass Canoe Repair

Repair Fiberglass Kayak

Repair Kayak Scratches and Patch Holes with Fiberglass

Firstly, sand the area you wish to repair well using sandpaper.

Then, proceed to clean the dust that was generated by sanding with a damp towel.

Dry the material to start gluing.

Take your scissors and cut out squares of fiberglass that resemble in size the surface to be repaired.

Recommendation: cut out 2 squares per surface, so that the arrangement will be thicker and will not easily break again

how to repair with fiberglass and epoxy

Shape the squares so that they do not protrude.

Put in the glass the ratio 1:1 resin and hardener. Proceed to mix the resin and the hardener.

 Be sure you are wearing gloves.

Use your fingers to spread the resin mixture on the material to be repaired, on the areas that you have previously sanded;

Take the fiberglass squares and place them well over the resin.

Try not to leave any bubble. The entire surface must be flat so that it does not peel off in the future.

Spread the resin mixture again, now on the fiberglass you have already placed, and apply the second fiberglass square on top of the first one.

Make sure once again that there are no air voids;

Finally apply a final coat of resin over the second fiberglass frame, this time smearing a generous amount of resin.

Let it dry for about 20 hours and you’re done!

How To Fix Cracks In Plastic

How To Repair Kayak Hull

Kayak Hull Repair

If you prefer to repair with the fiberglass fabric, the ratio of resin and hardener is 2:1. It is an FRP fiberglass fabric, fabric type E glass fiberglass.

The fiberglass fabric is an option possible for boat hull construction and wood reinforcing fiberglass. Disadvantages: provides less strength than the fiberglass chopped strand mat.

kayak hull repair

Fiberglass Boat Repair Kit

Marine Epoxy

Perfect for a wood boat, canoe, kayak, or building

Use under varnish to seal and stabilize Bare wood and lacquer finish When used on Bare wood, reduces the number of varnish coats needed to achieve professional results

Epoxy resin and deep pour hardener kit for epoxy river tables, thick slab live-edge tables, art casting, deep resin molds, embedding and encapsulating objects, and filling gaps in the wood.

Pours up to 2.0 in thick per coat for small molds and up to 1.0 in thick for large molds. The self-leveling formula, simple 3:1 mixing ratio, and long working time guarantee great results for do-it-yourselfers and professionals.

High gloss clear resin is easy to tint with mica powder, alcohol dye, and concentrated liquid pigments for eye-catching effects and vivid colors. Dries to an extremely durable waterproof finish.

Low odor, low VOC formula ideal for garage, store, and indoor use. Pours deeper coats than standard tabletop epoxies. BPA-free cured epoxy surface, safer for food contact tabletops.

Professional grade epoxy is available in three sizes: 1.3-quart kit (1-gallon resin, 1/3 quart hardener), 1.3-gallon kit (1-gallon resin, 1/3 gallon hardener), and 4-gallon kit (3-gallon resin, 1-gallon hardener). (Order it here).

TotalBoat 5:1 Epoxy Resin Kit (Gallon, Slow Hardener), Marine Grade Epoxy for Fiberglass and Wood Boat Building and Repair
  • Premium Epoxy Kits Include Enough 5:1 Marine Epoxy Resin And Hardener To Complete A Variety Of Boat Building, Composite Construction, And Epoxy Repair Projects. For Use On Wood, Fiberglass, Reinforcement Fabrics, Etched Aluminum, Bare Steel, And Lead. Not Suitable For Clear-Coating Applications
  • Ideal Viscosity For Wetting Out Fiberglass Cloth And Other Reinforcement Fabrics. Self-Leveling Properties Are Ideal For Coating And Laminating. Combine With Fillers To Make A High-Strength Fairing Compound, Filleting Material, Or Adhesive
  • Choose Fast Or Slow Hardener: Pot Life Ranges From 12 Minutes @ 75°F For Fast Hardener, To 20 Minutes @ 75°F For Slow Hardener
fiberglass repair kit

How To Repair Plastic With Fiberglass

Using Fiberglass to Repair Plastic

How Do You Stick Fiberglass to Plastic?

Any preparation of epoxy and fiberglass, or marine epoxy, homemade or a commercial fiberglass repair kit, allows repair and bonding fiberglass to plastic.

Can You Use Fiberglass Resin on PVC?

Yes, you can use Fiberglass Resin on PVC.

Will Fiberglass Stick to Polycarbonate?

Yes, fiberglass will stick to polycarbonate. Fiberglass repair kits are based on epoxy and hardeners allowing repair and bonding. Although the most recommended method is using fiberglass chopped strand mat and resin such as epoxy.

Can You Fiberglass Polyethylene?

Yes, you can fiberglass polyethylene. The use of fiberglass chopped strand mat, a resin such as epoxy, and a fast hardener is the most recommended method to fix polyethylene with fiberglass.

Can You Fiberglass Over Plastic

Yes, you can repair plastic with fiberglass. Different options are available in the market, using fiberglass repair kits, fiberglass chopped strand mat, or fiberglass hull (fabric), depending on the size of the damage to be repaired.

Learn about Plastic Repair and Plastic Welding in this article

how to repair with fiberglass and epoxy