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by Jim Derck—GBI Technical Advisor When using WEST SYSTEM® 300 Mini Pumps, the most important things to remember are: Read the instructions. Use one full pumps stroke of resin for each one full pump stroke of hardener to get the proper resin-to-hardener ratio. If you’re ever concerned that your pumps aren’t metering properly, simply mix […]
by Bill Bertelsen—GBI Test Engineer Our Technical Advisor Jim Derck (now retired), noticed that some fabrics seemed to have a remarkable thirst for epoxy. To determine exactly how much epoxy it takes to wet out and bond different kinds of fabric, Jim conducted a carefully controlled experiment.
By Tom Pawlak — GBI Technical Advisor The Fairing File My son Matt and I recently built a small stitch-and-glue boat. While fairing the bottom we discovered that hacksaw blades can be modified and used for fairing. The buildup of fiberglass tape along the chine and keel had caused a low spot in the hull all […]
by Brian Knight—GBI Technical Advisor WEST SYSTEM® 807 Syringes are handy for injecting epoxy into hard-to-reach areas, but it’s difficult to load the syringe with thickened mixtures that won’t pour into the syringe body. With this gadget, loading non-sag mixtures is easy. It consists of a flat plastic disc with a short length of PVC […]
By Tom Pawlak —GBI Technical Advisor & Tim Atkinson — Senior Chemist I recently built a double-ended paddle for my kayak. The blades were made of thin mahogany plywood coated with epoxy. I had coated all the paddle parts with two coats of epoxy the day before, and overnight a thin oil-like film had formed on the […]
