Removing dry silicone from glass?

Is there a solvent that will make it easier to remove dry silicone from glass along with razor? I am shortening my overrflow box on my drilled out 20 long and want to get rid of the old silicone lines left on the glass.

matt

 

Try denatured alcohol. I was told that it would losen cured silicone, but haven't tried it my self. I do used alcohol for clean up of un-cured silicone and it works like a top. Hope it helps.

 

Thanks Jay, I'll try that.. someone else mentioned vinegar and I found this:

Acrysol Silicone Remover - Prep Agent

Doubt it says 'reef safe' on the label though. :-/

 

Matt just alittle tid-bit I have used acrysol before and I personally would never use it on my tank. I am 99% sure it is toxic to humans. My rule of thumb is if it can kill me its not going in the tank.

 

Yeah I figured. Thanks..

I got one side done, I had rubbing alcohol in the house and that helps a lot. I just kept wetting a towel with it and reapplying after scraping a bit.