Delilah - We apologize that we didn't meet your expectations with our Masonry Crack Filler. We take great pride in producing high quality items for your project and it appears we had an unreported issue. Let me assure you that our Masonry Crack Filler in the caulk tube is not a milky, thin or a runny type product at all. It's a typical caulk like consistency that when applied to the surface, horizontal or vertical, will stay in place until fully dried and cured. If possible, could you please call or email us with the batch numbers if you still have the containers? This will allow us to research what may have happened. We'd also like the opportunity to discuss further and make it right. We can be reached at 1-800-272-3235 or via email at ugllabs@ugl.com. (http://www.ugl.com/about/customer-service.php) Again, sorry for the issues you experienced and we look forward to restoring your faith in our DRYLOK brand.