Silicone sealant not sticking to bath

[Gavin77]

Title says it all really.

Removed old sealant with some sealant remover / knife, cleaned whole area with meths, allowed to dry, filled the bath and resealed, but in places it looks like the new sealant hasn't adhered to the bath (I can slide a fingernail underneath it in places and theres water leaking through)

Any ideas what went wrong? Or is it simply a case of cr@p sealant? To smooth i used my finger dipped in washing up liquid/water mix, but this took me a while. Could the washingup liquid have prevented the sealant from sticking properly?

Can anyone recommend a good quality sealant so i can try again?

 

[gcol]

What silicone did you use and how long after using the meths did you wait until applying the silicone?

 

[Gavin77]

Hi Gcol
Er, probably didnt wait that long after using the meths, but did wipe it all up with a cotton cloth, so im pretty sure it was dry. Not sure of the sealant manufacturer until i get home, but it was a general purpose sealant from a surplus store and ahem it was cheap.

 

[gcol]

As long as you're sure the area is dry then it should be fine. You can always give the area a quick wipe over with a clean paper towel to make sure it's bone dry. Then use a decent silicone sealant - cheapo stuff is a waste of time. Most on here recommended Dow Corning 785.