I'm a fan of the Fugen-boy gizzmos but I need to silicone around the base of a loo and the gap is too large for the largest curve in my box of three F-Bs. (The loo needed about 6mm packing at the front because of the floor slope).
Questions: Are there any large F-Bs available anywhere? How do I get a good large fillet without an F-B? Can silicone be built-up in layers, once a previous layer has cured?
Dave