expanding foam and yellow grout

[shogun rua]

Hi Guys,

I had a customer phone me for advice she told me she had her bathroom done and after 2 weeks the grout started to go yellow
The people who did it said it was because she smoked in the kitchen which has 3 doors between the bathroom, any ideas why grout would turn yellow after 2 weeks?
Also can you use expanding foam between window frames and walls, what i mean is will it contract and expand with the temperture after its set?

Cheers

Paul

[Dave]

Has she been washing the tiles down with bleach..?

[whitebeam]

The second post on grout problem Problem with yellowing grout

[shogun rua]

The second post on grout problem Problem with yellowing grout

Lol just seen it

[Dave]

Yep, bleach can burn white grout, nice and bright white and then goes yellow.

[shogun rua]

Has she been washing the tiles down with bleach..?

No mate she said just a damp sponge, what about the expanding foam?

Cheers

Paul

[Dave]

Expanding foam is used widely in window/door installations..

[shogun rua]

Expanding foam is used widely in window/door installations..

Cheers Mate, Just checking