Glues, Goos and Super Glues
Glues, Goos, and Super Glues
The are all kinds of different adhesive that can be tried in different situations. Some are simple to use other complicated and messy. Knowing what's available for different situation and knowing how to use them takes a little research.
Recently I was involved in a special project with a friend that involved some tricky lamination and a lot of different parts to be tacked together. I decided it was time to investigate what was available on the market these days in glues.
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There are two kinds of wood fillers -- hardening and non-hardening -- and we use both. It depends on what we need to fill and the finish we're using.
This Western Red Cedar heartwood test lay-up, that included resorcinol, West System epoxy, liquid polyurethane, 3M 5200, and PL Premium polyurethane construction adhesive, was pulled from the pond water after six months of submersion, cleaned, and a sample removed from one end and re-soaked while the large end was allowed to air dry.
The polyurethane promise was enticing. We were told that it’s stronger than yellow glue, it’s waterproof, it fills gaps, it can be stained and it will bond almost any two materials together. The downsides were that it is more expensive, can be messy and it has a shelf life of about a year after the bottle is opened.
Prior to being a woodturner, Super Glue was an obscure tube rarely seen or used, stuck in a kitchen drawer. When I became a woodturner I was surprised to see myself going through bottles of the stuff.