Silicone Sealant??

Question

Hi,I just replaced the silicone sealant along the front of a relativelynew shower (6 months old).The reason for this was that the plumber got a big lump of dirt off hisboots into it when it was wet.I managed to cut the old out with a very sharp craft knife, this stillhowever left a very thin film of the old stuff on the shower tray anddoor. I masked it off and applied the new stuff about 1mm wider thanthe old.Is this going to be OK, I've started to worry that it may not adhereproperly to the  old silicone??Any comments welcome.....Pete

Kalico · Accepted Answer

Should be fine but there will be only one way you will find out.There is a gel you can apply that dissolves all the old silicon but asyou've already done the job then just see how it goes.Rob

Lobster · Answer

It's a possibility; depends how mucky the old stuff was - if it's clean (which it ought to be if you've cut away the grubby surface layer) you'll probably get away with it. The kosher way to do it would have been to clean away the residual silicone with a special solvent; readily available these days under names like 'Silicone eater' (eg at Screwfix).

David

John Schmitt · Answer

The new silicone will crosslink into the freshly cut surface successfully,  giving a bond very nearly, if not as strong, as the cohesive strenght of  the silicone.John Schmitt

Nick H · Answer

--Nick H

Silicone Sealant??

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