Can't comment on the silicone he's used but its a well known fact that silicone does no accept paint or stain very well hence the reason why he's used white but judging by the look of his siliconing (spelling ) he's never held a silicone gun before.....sack him
The bead of silicone he's put on is easily removed with a stanley blade, the tape he's used is fine, probably glazing tape, glass panels won't be damaged at all
The bead of silicone he's put on is easily removed with a stanley blade, the tape he's used is fine, probably glazing tape, glass panels won't be damaged at all