Epoxy Basics: How Can You Use Fibreglass Cloth or Tape to Reinforce and Resist Abrasion?
When it comes to reinforcing and resisting abrasion, fibreglass cloth or tape is a go-to material. It’s a common sight in the construction and repair of boats, cars, and other structures that require strength and durability. This guide will walk you through the process of applying fibreglass cloth or tape with the help of WEST SYSTEM® Epoxy.
What’s the first step in preparing for the application?
Before you dive into the application process, it’s important to prepare the surface. This means cleaning the surface thoroughly to remove any dust, dirt, and grease. The surface needs to be dry and smooth to ensure the fibreglass cloth adheres properly.
How should the fibreglass cloth or tape be positioned?
After the surface is ready, it’s time to position the fibreglass cloth. Cut the cloth a few inches larger than the area you’re covering. If the surface area is larger than the cloth don’t worry. Just overlap multiple pieces by about two inches.
What’s the best way to apply the epoxy?
Now, let’s move onto the epoxy application. Start by mixing a small amount of epoxy. WEST SYSTEM Epoxy suggest using three or four pumps each of resin and hardener. Pour a small pool of the mixed epoxy resin/hardener near the centre of the cloth. Then, gently spread the epoxy over the fibreglass cloth surface with a plastic spreader, working it in to ensure there are no dry areas.
How can you sure ensure the fabric is properly wet-out?
A properly wet-out fabric is transparent. If you see white areas, that’s dry fabric. If you’re applying fibreglass cloth over a porous surface, make sure to leave enough epoxy to be absorbed by both the cloth and the surface below it.
How can you remove excess epoxy?
To remove excess epoxy, use a plastic spreader. Before the first batch begins to gel, slowly drag the squeegee over the fibreglass fabric at a low, almost flat, angle, using even-pressure and overlapping strokes.
What are the final steps in the process?
Once the epoxy has cured, you can sand the surface to remove any rough spots and achieve a smooth finish. The final step is to apply a coat of paint or varnish to protect the fibreglass and give it a professional look.
Remember, safety is important when working with fibreglass and epoxy. Always work in a well-ventilated area and use protective equipment including gloves and safety glasses.
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