Have heard of this before - good friend in USA had his APOLLO BG just completely drop out after TT had been on for 5 years - pulled in at the edges slightly and then one day just all fell off... another had a similar thing happen.
Ive never used it and never will.. ive also never sealed a BG unless it was necessary, can honestly say that i dont believe in sealing to protect a perfectly good BG - if she starts to go then of course address the issue, the coating should also be as thin as possible - the thicker it is, the more risk you take.... well, thats always been my theory and i aint budging from it.
