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EducationDouble sided tape for holding specimens?
5th Dec 2019 00:41 UTCAli U.
This is a picture I took of an box that used double sided foam taped on the bottom. I am holding that box at 45+ degrees and everything is stable.
I wanted to know if tape like this can hurt the specimens "chemically"? (These specimens are strong enough to be taped.)
(In this case my specimens are calcite)
5th Dec 2019 08:55 UTCJim MGlasson
5th Dec 2019 21:09 UTCEd Clopton Expert
Double-sided foam tape can leave residue on specimens and mounting surfaces that is difficult to remove. I have used grey mounting putty with good success for years, but I don't live in a climate that subjects it to great heat, so I have not had the problems that Jim describes. That putty, which I am told is made in Germany, sticks well to most surfaces but removes cleanly when required.
If a very secure, long-term hold is required, and the specimen will withstand soaking, a drop of white (Elmer's) glue will work. Soaking in warm water will soften it so it can be scrubbed off.
The blue "Mineral Tack" of years ago turned out not to be stable over time, becoming either gummy and difficult to remove cleanly or hardening and releasing its hold. It also left stains on porous surfaces (specimens or mounting surfaces).
Another good wrapping material is the very thin plastic film that grocery store produce bags or drycleaner bags are made of. It is soft, can be crumpled up to provide cushioning, and it doesn't leave paper fibers on things.
6th Dec 2019 02:30 UTCEd Clopton Expert
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