Hi Groucho
Sorry for the delay been away a while. Use silicone sealer on internal shower corners, shower trays baths & shower screen/door. I would use silicone between the tiles & UPVC frames as it’s not going to be painted. Quality silicone of the correct type is far superior to decorators caulk in all cases but you it won’t take paint so don’t use it can’t use it anywhere you need to paint.
Regards
Richard C
Sorry for the delay been away a while. Use silicone sealer on internal shower corners, shower trays baths & shower screen/door. I would use silicone between the tiles & UPVC frames as it’s not going to be painted. Quality silicone of the correct type is far superior to decorators caulk in all cases but you it won’t take paint so don’t use it can’t use it anywhere you need to paint.
Regards
Richard C
