Let me be the first to admit this item is a bit hokey. It is clearly designed for moistening stamps, but it can also be re-purposed and used to activate veneer tape. It's cheap and it works. I started using one of these in my shop close to 20 years ago. It's been through the wringer, and it still works like a champ.
Approximately 3" in diameter.
You can find these moisteners online for less, but I include a spacer ring made from an odd size of PVC pipe that fits inside and raises the sponge 5/16" above the top edge of the cup. This allows veneer tape to easily pass over the sponge and activate the tape with water.
Two Tips from Joe
Review by Mason McBrien
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These hold up well under student conditions. I have used these for years in our woodworking school. They've held up quite well. No complaints.
Review by Benjamin Knight
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Great product, highly recommend you construct a small wood base, I made mine using forsner bit and a scrap piece of poplar I had laying around. Now I can clamp it down to any work surface with ease and apply my tape with one hand.
Review by David H.
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This isnt so much a review as it is just a tip to easily improve this moistener. I put a couple pieces of velcro on the bottom of the moistener and then put the mating velcro pieces at the corner of my workbench so the moistener stays put when in use.