Absolutely mild proof tile grout and caulk

[Andy]

Is there any tile grout or tub caulk that is guarateed to be mildew proof.

I live in an apartment which has one of those circulating fans that doesn't vent the bathroom air outside, it just recirculates it just to make sure every part of the bathroom has a coating of water on it. :-)

Thanks.

[Roger]

In that kind of environment, there is no grout that is mildew/mold proof. The bathroom needs to be fitted with a real vent fan, venting outside. Grout is usually portland cement based adhesive for attaching and sealing tiles. Caulk is a repair or waterproofing material. Which to you mean to use, and what for?

[m Ransley]

Nothing is mold proof, mold needs water and food to live and grows where conditions are right. Use bleach in a spray bottle to kill any mold before it becomes a problem. I used to live in a place Id spray every month.

[Andy]

I knew what the real solution was, but knew the manager wouldn't see it as something I had to have.

Grout is usually portland

Since nothing is mildrew/mold proof, I have no other options.