Yellow discoloured bathroom sealant

[johnw6761]

I have an old bathroom and some sections of the sealant around the bath were getting pretty shabby. I decided to redo this a few months back but the white sealant that I used is now turning a horrible yellow colour. The old stuff round the rest of the bath that is really old is still pure white.

Why would this be and what can I do?

Thanks

 

[footprints]

Could be you used an acrylic paintable mastic sometimes they tend to absorb all sorts of contaminates.
A good silicone brand something like this one is the best bet, there is no real short cut just clean out and re-do the whole bath.

http://www.screwfix.com/p/dow-corning-785-bacteria-resistant-sanitary-silicone-white-310ml/58308