0076694000046

Durham's Rock Hard

Model DU-4

Internet #202535298

Store SKU #865311

DU-4 4 lb. Water Putty

$7.98 /each
  • Makes long lasting repairs
  • Use internally or externally
  • Easy to use

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Product Overview

For 80 years, Durham's Rock Hard Water Putty has been making repairs in wood, plaster, drywall, stone, tile, concrete and other stable surfaces. Just add water to this powdered material, apply it into voids, cracks and holes. When thoroughly dry, it can be sanded, drilled, sawed and painted. Repaired areas are very hard and long lasting. Durham's can also be cast or molded to reproduce missing trim pieces or in handicraft or artistic applications.

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4 Questions4 Answers

Customer Questions & Answers

DU-4 4 lb. Water Putty
DU-4 4 lb. Water Putty

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Can this be stained?

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california
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November 14, 2015
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Puget Sound region
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January 27, 2016
Answer: 
Yes, you can stain it, but NO, it will not look very good, as it does not uniformly absorb stain and the color is a mixed bag of results. It certainly won't match the color of the wood that is stained if that is your desired result.
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Batavia, NY
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December 15, 2015
Answer: 
yes, but depending on the wood, you will be lucky if it matches. For nail holes on trim, use brads and do not fill them, stain and urethane then use colored minwax crayons to fill small holes. If you use a putty knife to fill nails, it will seal the wood around the area and stain blotchy unless you sand deep.
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how to sand after application

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McHenry (Il)
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September 26, 2015
I applied to a desk top. Now i wont sand manually and paint with solid colors. Directions/tips?
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Asked by
Puget Sound region
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January 27, 2016
Answer: 
Sand as soon as possible after it hardens. Waiting may make sanding more difficult. As far as applying a finish, this product will NOT absorb stain and produce a color that will match the wood, so I don't recommend this product if you want to stain the surface afterwards. Most puttys will not stain well. You could apply a solid color or if you are OK with the putty looking different than the wood, you Read More
Sand as soon as possible after it hardens. Waiting may make sanding more difficult. As far as applying a finish, this product will NOT absorb stain and produce a color that will match the wood, so I don't recommend this product if you want to stain the surface afterwards. Most puttys will not stain well. You could apply a solid color or if you are OK with the putty looking different than the wood, you can apply a clear coat like varnish, which will slightly darken the putty. Read Less
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Asked by
Batavia, NY
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December 15, 2015
Answer: 
for small holes like nails, let it dry hard then sand. It does get rock hard and is tough to sand so try to get it to the final shape or surface when wet. It sands easy when semi-hard but gums up the sand paper.
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what kind of primer do i use for painting

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August 2, 2016
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If you put vinegar in it to slow it down does it hurt the performance?

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December 14, 2015
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Customer Reviews

Rated 4.2 out of 5 by 15 reviewers.
Rated 2.0 out of 5.0 by Just don't plan on painting over it, if you live in the Mid-west. At first I thought this product was one of the hidden great invention. This stuff seemed pretty tough and would stick to a lot of surfaces. Dries pretty quickly (so you may have to make many batches). If you live in the Midwest and decide to PAINT over it. Watch-out, the next Winter my bring results in you stripping down and repainting the following season. I used it in multiple areas, including an area where I used exterior primer to cover then S.W. paint. In another area I just painted over with Sherwin Williams Duration. BOTH areas peeled right in the area where I applied this product. July 12, 2016
Rated 5.0 out of 5.0 by Works exactly as advertized. Best product for filling interior or exterior painted wood. I've used this product since my father taught me about while repairing exterior wood trim on my first house 40 years ago! Absolutely the best product out there for patching woodwork prior to painting. Mixes with water, and dries rock hard, to a firm, sandable, paintable surface. People who have founds this product to be inferior clearly did not follow the mixing directions! Great stuff! January 29, 2016
Rated 5.0 out of 5.0 by Good Deal Bought this on-line. It looked the same size as a typical "plastic wood" can. Much to my surprise it is about the size of a half-gallon of milk. Better yet it is a powder that mixes with water. I've had my share of partially used cans of wood putty that end up dried out when you go back to use them for a second time. This product won't go bad!!! Used it to cover up some deteriorating exterior trim. Mixed well, applied without difficulty, dried nice and hard for painting. Quite pleased. August 4, 2015
Rated 4.0 out of 5.0 by Water Putty great product, does what it says if you use it as instructed. August 13, 2015
Rated 5.0 out of 5.0 by I love this stuff. I use this stuff for patching all holes and dings in the walls of my apartment because apparently the walls are made of sand and chewing gum. :/ It dries fast and lasts forever. I am going to try it on repairing the nail holes in an old vintage sofa I am reupholstering, and I think with the added flex of the wood that I am going to try mixing it with both water and wood glue to give it a little more flex, as the product is very stiff when mixed with just water. If you need more flexibility out of your product for certain jobs I would try it, though it lengthens dry time. January 9, 2015
Rated 5.0 out of 5.0 by Amazing stuff. does exactly what it's name is. This stuff goes in like water, so, seal up all your cracks. sets like a rock. prepare to pre-drill your holes. fills all the knoocks and crannies, then turns hard, hard, hard, Not brittle, like cement, takes screw threads w/o cracking. Adheres to every substrate I have challenged it with.... If, your wood is rotten, drill some holes, pound until the loose stuff is out. then fill'er up, better than new!! Love it!! Way cheap for what is does!! excellent performance!! I leveled concrete stairs with this stuff( 1" thick) in 1991. I have moved but it is still there today (2012). I fixed door jams in rental houses, they are still swinging solid.. Still there. August 6, 2012
Rated 3.0 out of 5.0 by Best alternative putty for wood but still not up to par The item is good if there are no other real choices for filling gaps and cracks etc. However we did have a hard time of it cracking or not hard after sitting for 48 hours and ended up using another product that got the job done. Its good for smaller fills but imo larger spaces up to 1/4 inch it doesnt seem to hold well. April 29, 2015
Rated 5.0 out of 5.0 by Works great! I use this product to patch holes caused by carpenter bees in my cedar siding. It works great at filling large gaps and deep holes, and dries hard as a rock. Once dry you can sand it, and paint it. Very good value for the price. May 2, 2015
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