Help- Caulk


21 Oct 2006
Reaction score
United Kingdom
Hi all

As part of my final preparation for painting my lounge I went around the room last night and applied GeoCel Decorators Caulk to all cracks and around all door and window frames, smoothed off with a wet finger and all looking good.

Got up this morning to find a single crack down the middle of every single line of caulk I had applied. It looks terrible after all my efforts !

What did I do wrong? and how can I rectify this. Please help.

Many thanks
Sponsored Links
It could be the caulk..ive never heard of the brand personally

Ive seen this happen before, sometimes caused by the room being too warm or the surfaces that you are caulking i.e something porous like bare wood, the moisture in the caulk absorbs into the surface leaving nothing to form a bond.

I'm visualising this as sticking at the sides of the gap but splitting down the middle? I presume the stuff has shrunk as it dries. I was thinking it might have been the size of the gap?. If you fill but leave the level below the finished surface, you could then apply a thinner layer over the top, which, being thin, should shrink less but would fill the crack.

DIYnot Local

Staff member

If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

Select the supplier or trade you require, enter your location to begin your search.

Are you a trade or supplier? You can create your listing free at DIYnot Local

Sponsored Links