Glue for DIY tubing - The Planted Tank Forum
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post #1 of 5 (permalink) Old 02-02-2004, 04:22 PM Thread Starter
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Hello all. Wasserpest, cause you run so many DIYs, what type of glue did you purchase to seal the cap to the tubing.

I used this silicon crap that worked well for four weeks than just desealed itself entirely.

What glue do you use to seal the tubing to the cap?

Any help would be much appreciated.
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post #2 of 5 (permalink) Old 02-02-2004, 04:31 PM
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Silicone has worked fine for me, but the soft tube eventually seems to work itslef loose and separate from the silicone. I use rigid airline fittings that I epoxy to the bottle cap now. Either from old airstones or the small diameter tube that is used for UGF uplift tubes.

- Sam P -
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post #3 of 5 (permalink) Old 02-02-2004, 04:58 PM
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Silicone does not like to stick to the cap or the tube, I always drill a smaller hole than the tubing in the cap and let the tube seal it off, has worked flawless from day 1.
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post #4 of 5 (permalink) Old 02-02-2004, 05:05 PM Thread Starter
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I've had too much trouble with the silicone not wanting to stay in place over time.

I'm going to drill another hole and try epoxy and silicone.
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post #5 of 5 (permalink) Old 02-02-2004, 05:22 PM
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Fat Guy,

For setups where pressure is involved (like pushing CO2 into an external inline reactor), I do it like CGA, using these little dripline connectors, cut in half:

For pressure-less applications (like letting it bubble into a filter inlet) just drilling a hole (make sure it is really nice and round) and pulling the airline through works as well. I am not convinced that this will last as long as the "nipple method" :mrgreen:
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