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04-16-2013, 05:20 AM #1Member Swordtails
- Join Date
- Oct 2011
Trouble removing freshly cured silicone
Just stripped and resiliconed an older 125 gal tank, and because of a small mistake I didn't notice now I'm having to re-resilicone the whole thing again. After spending hours just rigorously razoring all the freshly cured silicone off I go to clean and retape for the new silicone application and what do I find but my good masking tape is not sticking in certain locations, even after cleaning all the seams with denatured alcohol and then acetone. Although visually the glass appears clear in these places the only thing I can imagine is that there still remains a very thin layer of that freshly cured silicone that I'm not able to remove. In those spots I've put so much pressure on the razor I was afraid the blade itself was going to break in my hand. Been using the regular rectangular shaped razors with small removable handle for support.
So now I'm just about clueless as to what to do next. My only idea as to how to remove the silicone mechanically would involve some kind of spinning flap pad like you would clean metal with. It would be 'ok' to get into the glass a little as the upper and lower brace frames would cover the damage. As for a chemical means to remove the silicone I'm not aware of any due to silicone's nonreactive nature.
Any advice at all?
04-16-2013, 06:53 AM #2Member Swordtails
- Join Date
- Oct 2011
PS. Just got word that DAP apparently makes a product that is designed to remove silicone, although I'm not sure what it is at this point. Anybody possibly know what this product is or have advice on using this it in a proposed freshwater aquarium?
04-16-2013, 11:24 AM #3
I would suggest manually removing the silicone. When resealing a tank, ideally you only want to remove the outer layaer of silicone and leavel the inner layer of silicone that is between the glass holding them in place. Although I have never used a sillicone remover like you have discribed, I would be concerned that it could damage the silicone between the pains of glass making this a lot bigger of a job to fix. Just a concern on my part tho.
I have only remove silicone with a razor when resealing tanks. The last tank I resealed, I had to remove the silicone with a razor knief (box cutter knief) as it was very hard to remove. It reminded me of how you discribed you situation. It just takes time and effort.
If the bad part is only one one spot of the tank, could you make that part the back of the tank making it even less noticeable ?If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
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