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Red Dot Glue


sm23221

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In the past I've used double-sided sticky tape - a 'good quality' tape will stick well and hold in place, but can be removed with care if you need to again. I used a scalpel to trim around the 'dot' and to then remove the backing paper prior to poitioning.

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Not superglue (Cyanoacrylate) - I had a lens with a misaligned dot as a result of doing so and being ham-fisted:eek:.

 

So CA glue works ! If ham fisted, use medium thickness and the instant fixer you spray on after the piece is positioned. I have built many a RC airplane that way. The thin will also work.

 

Even 5 min epoxy takes 24 hrs for full cure.

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I've never had a problem with superglue but I agree epoxy is probably better. Key is to use the smallest amount possible so that when you press the dot into place, it does not exude from the edges. Also, use non metallic tools like a wooden tooth pick to apply to avoid damaging the finish.

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Last week I had it repaired at the best Leica repairman in my country. I don't know about the technical names, but he assured me that an elastic glue is imperative, a hard glue will always cause repeated loss of the little red knob

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Last week I had it repaired at the best Leica repairman in my country. I don't know about the technical names, but he assured me that an elastic glue is imperative, a hard glue will always cause repeated loss of the little red knob

 

This is what I discovered hence my post #4 above.

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I agree, E6000 should be an ideal glue. I would never use epoxy or the normal hard super glue, they need a 'key' or alternatively a much larger surface area to bond strongly. You can get a flexible superglue that does bond very well, but with E6000 so easy to find on Ebay it is the better option.

 

Steve

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I agree, E6000 should be an ideal glue. I would never use epoxy or the normal hard super glue, they need a 'key' or alternatively a much larger surface area to bond strongly. You can get a flexible superglue that does bond very well, but with E6000 so easy to find on Ebay it is the better option.

 

Steve

 

Over here everybody and their brother sells it starting with WalMart, Ace, Lowes, Home Depot and the like. Even available in some drug stores.

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  • 7 years later...

Someone resurrected this 7-year-old thread...
By far the best is ultra thin double sided tape of the "strong" variety.

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