I’m trying to install a bathtub splash guard along the lines of this answer. However, my bathtub is one of those pre-molded drop-in units where the shower wall corners are rounded. Also, things are not entirely square. The vertical surface of the plexiglass splash guard is 11” long and 1/2” wide. This is the surface I need to seal against the enameled tub. But with the splash guard flush to the horizontal surface of the tub the gap to the shower wall varies from 1/4” at the bottom to 1/2” at the top of the splash guard.
The splash guard came with a tube of ASI 502 100% RTV Silicone. I’m hesitant to use this product directly to try and fill such a large gap. Anyone have experience doing this? Or suggestions for alternative methods?