The caulking around my bath tub is turning yellow!

Hello! From what I have read, any latex caulk will turn yellow if not painted at time of installation. In order to get it white, you would have to paint it. Once painted it should stay nice and white and can be easily cleaned. If recaulking, be sure to use a product like polyseamseal, which will not yellow. Good luck!

Not that I’m aware of, calling itself turns yellow all the way thru. It’s not just on the outside usually! I know some products these days are made to not yellow or so they say! Instead of using white calling, you may want to use a clear calling instead. Just make sure it doesn’t clean up with water! As nice as it is to be able to clean everything easily with water, that silicone just don’t hold up anywhere near as good as the old style silicone that you have to clean up with lacquer thinner. If your careful when applying it you shouldn’t have much clean up and this clear silicone should last you for a decade or more without any need to replace it and it should stay clear! Only regular dirt you’ll need to clean off! I never use the white unless it’s paintable silicone that I’ll be painting over. Everything else I use clear! Your existing silicone should scrape off fairly easily! You Can use a putty knife but keep the blade fairly flat to the floor not to gouge your flooring! Hope this helps? Good luck

The problem is likely the kind of caulking that you are using. I suggest trying a 100% silicon caulk will a good warranty made for bath tubs.

http://homeguides.sfgate.com/type-bathtub-caulk-91522.html

I think that something is leaching into the caulk. Could be backing the tile is on. The thinset or adhesive used. Even the back of some tile can leach. Shampoo, soap, body wash, etc. I would recaulk using a 100% silicone bathroom caulk. If it turns yellow again there is an underlying problem.

That sounds quite odd I would suggest calling the caulk manufacture that’s indicated on the tube that you’re using for consultation.

I have found something completely different. If a bathroom has no natural light, I find that silicone caulking, as well, bathtubs do yellow overtime in the same bathroom. I noticed this in a recent renovation where we took the old fiberglass bathtub outside and it looked yellow. The best solution for yellow and caulking is spraying it with bleach water mix and putting saran wrap over top and letting it sit until it’s white again. I help people with staging and renovations, and this works every time.

You will usually have to clean off old and replace it with new

Caulk (both latex and silicone blends) will turn yellow if not painted. You can try an oxygen based cleaner. Try re-caulking with Polyseamseal or another type of caulk that is specifically formulated to be non-yellowing. Gorilla Glue supposedly has a new one. If you paint the caulk, it will be easier to clean or repaint when needed.

Hello,

You could Re- caulk it or replace with a Plastic Seal or paint it!