New Silicone over new silicone?

j1mm1nycr1cket · 11 Nov 2015

I'm renovating my bathroom. Done a really good job, did everything right but absent mindedly put silicone around bath to meet tiles before grouting.
I'm now considering whether to grout down to meet the silicone or if that will just leave a hairline crack where the two meet.
I could grout and then put another bead over the new silicone to cover the grout edge as well, but will new silicone stick to new silicone ?
I don't want to scrape it out really.. I'm not sure it's even a risk with water ingress... what do you reckon.?
Thanks

ree · 11 Nov 2015

Are you saying that you have siliconed between the rim of the bath tub and the bottom of the wall tiles? The usual line of caulking?

If the silicone is a full bead and has been "struck" and smoothed, and is sticking to the bath and the bottom of the tiles then no problem: simply grout down to the silicone.

Read the previous post on "Perfect Grouting"

longdogs · 12 Nov 2015

Please also see this post: //www.diynot.com/diy/threads/tiling-to-bath.446286/

j1mm1nycr1cket · 12 Nov 2015

Yes, that's exactly what I'm saying, ree. In the end I dug it out. I'm going to grout then silicone over the top, belt and braces. I don't think it would have been a problem grouting down to the silicone but I've spent so much time doing the job properly I don't want to leave anything to chance.
I found a post on another forum where someone had tried sticking new silicone over new silicone and they reported that it didn't bond very well. Thanks

jctilingservices · 12 Nov 2015

you should not be grouting between bath and bottom of tiles, the grout will not allow for any movement and therefore crack / breakaway, leaving some way for water to get in

longdogs · 12 Nov 2015

jctilingservices said:
you should not be grouting between bath and bottom of tiles, the grout will not allow for any movement and therefore crack / breakaway, leaving some way for water to get in

I totally agree.

cjard · 2 Dec 2015

Fill the bath before you apply your new bead of silicone

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New Silicone over new silicone?

j1mm1nycr1cket

ree

longdogs

j1mm1nycr1cket

jctilingservices

longdogs

cjard

DIYnot Local

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