Of all the sealants I've tried, this is by far the best! I applied the product to about half of the tub two months ago when needed. The little tube I bought would probably have completed the bath but it wasn't necessary. I hope the lid it came with keeps it from drying out over time. (Actually, I could probably now apply it to other places where it's needed, e.g. around the window to better seal cracks.) The sealant has held up well to frequent exposure to water (shower/bath). There are no visible signs of use. If I ever need a sealer again I will definitely look back and want to buy this product. As long as you scrub before it dries, it's not very difficult to clean. It's a little harder to clean than a lower quality joint compound, but soap and warm water will do the trick. Excellent material! And not very expensive considering the quality and expected sustainable quality.