Often wondered on this question.
I know the manufacturers use sealant (mastic) on a roll a lot, but my thoughts have always been that it was for ease and cheapness (labour wise) of manufacture.
My personal opinion is that GOOD QUALITY silicone based sealants such as Sikaflex, Dow Corning, or in the case of EPDM, Dicor, does a FAR better job of getting into all the nooks and "crannies" when you're sealing something up........but thats just a personal opinion and not based on fact.
I also must add that when ever I seal anything up using silicone, I belong to the school of thought which says "its better to put too much on and have to clean up afterwards, than not put enough on and risk a leak".
Perhaps somebody from the trade might like to comment and give arguments for and against both?
Cheers:thumb:
I know the manufacturers use sealant (mastic) on a roll a lot, but my thoughts have always been that it was for ease and cheapness (labour wise) of manufacture.
My personal opinion is that GOOD QUALITY silicone based sealants such as Sikaflex, Dow Corning, or in the case of EPDM, Dicor, does a FAR better job of getting into all the nooks and "crannies" when you're sealing something up........but thats just a personal opinion and not based on fact.
I also must add that when ever I seal anything up using silicone, I belong to the school of thought which says "its better to put too much on and have to clean up afterwards, than not put enough on and risk a leak".
Perhaps somebody from the trade might like to comment and give arguments for and against both?
Cheers:thumb: