This is a classic case of the right tool for the job. There’s all kinds of
silicones designed to do specific tasks – Roof & Gutter, Brick & Concrete, Wet
Area, and this one: Glass.
Monte’s making an aquarium, and it’s important to select the right sealant,
because it not only has to be waterproof and strong enough to hold against the
water pressure, it also has to be non-toxic to the fish. Small tanks like this
are very easy to assemble, but larger tanks require sealant to be applied
Step 1: Cut or order your glass to size. For safety and a neat appearance, have
the edges “arrised”. This is a small bevel that removes the sharp edge.
Step 2: Apply masking tape to the glass so that you’ll have straight edges on
the silicone. Lay out the glass panels so you can simply stand the panels up and
hold them together tightly with masking tape on the outside of the corners.
Step 3: Apply the sealant by pushing it into the corners, and then smooth it off
with a wet finger. Remove the masking tape from each side of the joint
carefully, without touching the new silicone. Then leave it for about 72 hours
to fully cure. Remove the outside tape and give it a rinse off before installing
the new fish.
Of course if it’s good
enough for fish, it’s good enough to seal leaks around your windows, skylights
or wherever else glass needs a good seal.
Selleys products are available at all good hardware stores.