A. A solvent-based construction adhesive will work fine for attaching ceramic fixtures. For best results, I recommend abrading the glazing on the tile first. For attaching plastic fixtures, a multi-purpose construction adhesive works well. A 100% silicone caulk also would work. Silicones by nature are very strong. Once the tile is in place and the adhesive is dry, caulking around the fixture is recommended.
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