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Re: Aquatic Plants Digest V3 #616

In a message dated 11/1/98 12:58:40 AM Pacific Standard Time, Aquatic-Plants-
Owner at actwin_com writes:

 Commercially lye dissolved in tetra hydro furan is used to remove cured
 rubber. this is extremely nasty stuff and will probably dissolve the plastic
 frame. I have personally disassembled tanks for repair by dragging a double
 razor blade through the seam with a pair of vise grip pliers. I then used a
 blade scraper to remove all of the silicon rubber from the glass so that the
 could be reassembled. This is important since the silicon rubber does not
 well to itself. >>
Be very careful with THF, we used many gallons of this solvent in "welding"
vinyl liner sheeting together for water-effects underliners over the years.
VERY flammable, and not good to inhale fumes of either (maybe that's why I
can't get out of the pet-fish biz?). The SOP in the trade is new single edge
razor blades to split seams, and a solvent (toluene, xylene, others... with
gloves, good ventilation) used to clean used panels of old silicone residue
(and gunk from fingers, etc.).
Bob Fenner