Category Archives: Fiberglassing

varnish over epoxy

Getting the Clearest Fiberglass Finish

by Jim Derck—GBI Technical Advisor

If you are using the strip planking method to build a canoe, kayak or even a telescope, you already appreciate the beauty of wood. The following tips will help you achieve the clearest possible fiberglass coating to protect and reinforce the wood and show off your handiwork. Continue reading

Fiberglassing – Shop Tips

By Tom Pawlak — GBI Technical Advisor

Corners that require fiberglassing need to be rounded to allow the fiberglass cloth to conform to the corner. If the fabric you are working with won’t conform to a rounded corner, here’s a tip that may help. When draping fiberglass around a corner, orient it so the fibers are at a 45° angle to the corner. The fibers will conform much better than if oriented at 90°, because they are not bending nearly as much. Continue reading

removing fiberglass

Fiberglass Removal Techniques

By Tom Pawlak — GBI Technical Advisor

Occasionally we receive calls from people who want to remove fiberglass cloth from wooden structures. The fiberglass on the bottom of a stripper canoe has worn out or the fiberglass and polyester on the deck of an older wooden sailboat has delaminated. The techniques described here work well for removing 1 or 2 layers of fiberglass cloth from wood surfaces. Continue reading

Sharp fiberglass corners

Sharp Fiberglass Corners

by Jim Derck—GBI Technical Advisor

It’s difficult to prevent cloth from lifting when fiberglassing around a sharp wooden corner. Even if you were able to lay glass tightly around a sharp corner, it could easily be dented. The slightest compression of the underlying wood could leave a void, and an invitation for moisture and the problems it creates. To avoid these problems, we always recommend rounding over the corner so the glass will lay flat against the surface. However, there may be times when you need a sharp corner. Here’s a method to make sharp fiberglass corners that are strong enough to prevent dents and protect the underlying wood. Continue reading