DURHAM'S Rock Hard Water Putty - 4lb Container

This is a great product that should be in any DIY arsenal, especially at the outstanding price with the add-on program here. Costs at least double this at the local orange home center.This is a fine cream colored powder, you mix it with water. Mix it thin, it is a great pore/ grain filling skim coat. Mix it thicker, it's putty that will fill knot holes, etc. It says that it does not shrink but of course as it dries it will shrink a little, necessitating more than 1 application on deeper holes, etc. It also sands very well, you can get a great smooth finish on it. As with any putty it will take stains, etc but you always need to experiment prior to using it on your final project- it'll take stain, but differently than the surrounding wood.I mostly use it as a skim coat on plywood that I'll paint. I can save money with lower grade plywood, build my shelf/ cabinet etc, fill the grain and imperfections with this, sand it back flat and get a perfectly smooth & flat surface for painting.As the name says, it does dry rock hard, no joke. I would not say that it is structural- I guess you could mix in some fibers or aggregate to strengthen it, but I have not experimented with that yet. Anyway, if you build stuff, especially if you're a woodworker, you should have a tin of this stuff on the shelf. I just finished a tin that I bought 5+ years ago and it was still good.

This works really great. But a little goes a long way. I probably only needed to buy a 1 lb container. This price was so good that I had no idea that it was a 4 lb container when I bought it. I did not look close enough. This thing is huge! A four pound container of this is going to last me the rest of my lifetime. But I'll take it it's really great. Which is pretty easily just keep adding product if you have too much water vice versa. Goes on really easy. I had to fix a door jamb that was riding away and I didn't want to replace it because I have no idea how to check all that project. This was good for a quick fix. It's been about a year and holding up well. It really does dry like cement. Highly recommend.

This stuff is great. Been using it for a long time and the results are always consistent. It doesn't shrink or crack. Easy cleanup. Nice and smooth, sands down easily, paints well. I dont stain filler so I cant comment on that. But i would assume you can get good results with a little experimentation. It dries a light pine color. Powder doesn't dry out in the containers like pre mixed, it mixes very easily and applies smooth.You dont need much water with this.

Have not used it yet for repair - but did mix a little to check for hardness and quality. Result was better than expected. I had flood damage on a laminated floor and bought WOOD FILLER to see how it would work.https://www.amazon.com/gp/product/B001E5L19O/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1Unfortunately, it would cost a lot if using WOOD FILLER and it is not really meant for flooring.The price of Rockhard Water Putty makes it great value considering how much you get. I like the fact that you only need to make up the amount you need - so there is very little waste, if any. I happened to leave the lid of the WOOD FILLER not fully closed and when next time I came to use it it had all dried out. No issue with Rockhard Water Putty.I have ordered some different colorants from Amazon so should get something close to the color I want for the flooring. https://www.amazon.com/gp/product/B00BHKKUXY/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1.If you have a large project that needs repair I think this is a great product to have around the house or work-shop. I am not expecting the Laminated Floor to look perfect but will be happy if it does not look so unsightly. Will post before and after photos once I have completed it.Seems silly to give a review before using it properly - but from the little I did mix up, plus the quantity you get, in addition to little or no waste, makes this a really good buy. I spent hours on the internet looking at all type of floor repairing - epoxies, chemical mixes etc. For price and quantity this is a really good buy.