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urbanaprof t1_iuafwwr wrote

Reply to comment by Leighgion in Is no more nails glue acceptable for attaching wood together for shelving? by ThatCraftyDragon

Idiot here. Why avoid construction adhesive? I'm using it for cinderblocks, but label says for wood, metal etc. Hope this isn't too dumb of a question.

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Stonetechie t1_iubdvau wrote

Mostly it’s messy and looks like hammered dog poop. It’s also unnecessary it you’re going long grain to long grain with moderate clamping- pva is all you need.

For weird matériels or less than ideal situations/no clamps I prefer it or epoxy over wood glue. Wood glue loses most of its strength if there’s any gap or finish on the joint.

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Leighgion t1_iudz4ya wrote

It’s a matter of using the most suitable material for the job.

Wood glue is meant for tight, flush joints and excels in this role as it’s thin enough to spread evenly, fill tiny cracks and dries either clear or very slightly yellow. Basically, it’s tidy.

Construction adhesive is meant for much rougher connections where surfaces that aren’t as smooth or flush and you’re probably only applying spots of adhesive rather than covering the whole surface. As such, the stuff is much thicker, more gloppy and you basically only want to apply it where it’s never going to be seen or touched because it’s messy, impossible to fine tune and looks like crap.

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