You can also use a black light to help speed up curing time for the silicones ! I've done it before (long ago for a 10gal repair and only took about 2-3 hrs) and never leaked. Still always best to allow things to naturally react though and likely the formulations have changed in the past 20 yrs. It's the UV radiation that drives the reaction.
Last edited by jfynyson; 01-30-2014 at 08:37 PM.
Reason: UV addition