Wilsor Polyester Resin Repair Kit

Application

Wilsor Polyester Resin is a synthetic resin that cures after the addition of a hardener. It is used for making yachts, spoilers and sculptures, among other things. The strength of polyester resin is obtained by using a reinforcement material such as glass mat, kevlar or carbon. The resin is applicable to substrates such as stone, steel, polyester and epoxy, provided they are grease-free and roughly sanded. Polyester resin does not adhere to epoxy, polyethylene and Teflon.

Reinforcement material

Because polyester resin is inherently brittle, it must be reinforced with a reinforcement material such as fiberglass, carbon or kevlar mat. These are available as woven mat or shredded mat.

Polyester resin versus Epoxy resin

Advantages

• Fast curing
• Lower price
• Cure adjustable via amount of hardener

Cons

• Shrinkage, leading to lesser adhesion
• Characteristic odor

User Manual

1. Sand the damaged surface and make sure it is dry, dust- and grease-free.
2. Add 2% to a maximum of 4% hardener to the polyester resin. More hardener accelerates the cure. 250 and 500 ml containers use a BP tube as a hardener. This should be rubbed well against the wall of the mixing cup for proper mixing. Packages of 1 and 5 liters use MEK hardener.
3. Apply the resin with a brush and place the reinforcement material in the wet resin.
4. Tampon the reinforcement material so that it is completely soaked with resin. Avoid air bubbles.
5. After curing, protruding fibers can be cut away and the surface sanded and finished with a coating.