Drylok Extreme in storm shelter

[bsshog40]

I was wondering if anyone has used Drylok Extreme before? We have an inground storm shelter and I want to seal it. There are no leaks which I can verify from many heavy rains in the past year. I want to paint the walls and floor just to change the ugly gray wall color. Opinions??
Thanks,
Bobby

 

[Woodchipper]

I used something similar, might have been Drylok, to seal a leak in a cistern that was at the end of the basement, under the carport. Couldn't afford a leak.