Around my bathtub I have tile, and the old latex caulk where the tub and tile meet is cracked so I've removed all the caulk and am ready to put new silicone caulk down. However, I would also like to seal the all of tile using the 511 Impregnator sealant. 

My question; Should I caulk around the tub first and let cure, and then do the sealant? Or the other way around?

**Tub meets tile**
[![Tub](https://i.stack.imgur.com/cUBcF.jpg)](https://i.stack.imgur.com/cUBcF.jpg)

**Tile meets floor. Ok to caulk over stuck grout? Should I re-grout this area instead?**
[![Floor](https://i.stack.imgur.com/lUlXe.jpg)](https://i.stack.imgur.com/lUlXe.jpg)