Rated 4.0 out of 5 by 14
Rated 5.0 out of 5.0 by MLU Excellent for use in Mold Making for Lost Wax Casting
I always use DAP Plaster of Paris for my molds since it seems to mix very well with sand in both 1:1 ratio for higher detail AND 1:2 ratio for a stronger hold. I love that it sets quickly and dries white. USG dries off-white/ cream eggshell and that's extremely annoying after using DAP. DAP also seems to be a better quality plaster than USG. USG crumbles even well beyond it's complete curing time. DAP does not. I've never used USG for molds as it is weak and I never plan on using anything other than DAP Plaster of Paris for my casting and mold making needs. It's an absolutely perfect fit for Aluminum and Bronze casting.
June 20, 2016
Rated 1.0 out of 5.0 by DIYinHP Beware: wrong product shown!!
The product shown in the photo (DAP Plaster Wall Patch) is a completely different animal from the one listed in the title (White Plaster of Paris Dry Mix) and actually stocked on my Home Depot's shelves. The former is DAP product # 10304; the latter is DAP 10312. I just spent 2 hrs on a wild goose chase trying to buy the wall patch & finding only the pure plaster of Paris. The wall patch has a higher lime content; it has a longer working time and a thicker consistency. The straight plaster of Paris only has a working time of 6-10 min. It is fine for cracks or small holes but not for larger areas.
January 30, 2016
Rated 5.0 out of 5.0 by BOB Fantastic product
I have read a lot of comments that it sets too fast for patching walls. That is not what it is used for when doing large areas or even medium sized areas "2'x2'". But if you add it to regular drywall compound and get the ratio correct you can do massive repairs, up to 2" thick or more in one shot saving a lot of time. It will dry in less than one hour, very hard and stable, no cracks. If you are installing real plaster moldings or lighting fixtures you will see every guy doing the work with at least one bag of the the stuff.
October 2, 2015
Rated 5.0 out of 5.0 by Mart Excellent for making molds and detailed casts
I use Plaster of Paris to make molds and small casts of detailed objects.
It sets up quickly and is very strong. Larger molds can be reinforced with
cut-up fiberglass cloth. Antique ceiling details and old plaster lamps
can also be repaired (when clean and dry) with new Plaster of Paris, but
working time is very short. Very large plaster pieces should be reinforced
with something stronger, like metal rods.
When set-up and completely dry, Plaster of Paris accepts all paint, varnish,
and other surface treatments I have used. Note: Even in a desert climate, it can take
up to a week for larger plaster pieces to dry. It also does not sand as easily as drywall mud.
Plaster of Paris sands better with a rasp.
Not recommended to texture overall wall surfaces. Drywall mud is better for that purpose.
April 14, 2015
Rated 4.0 out of 5.0 by grogg Grog say "Good stuff"
works very goood ...makes crunchy croutons . This stuff is very dry until you add water. Getz very hard very fast . When making face masks don't forget to leave nose holes for breathing & try not to sneeze before it setz.
June 2, 2015
Rated 3.0 out of 5.0 by 24368 Not for plaster wall repairs
Do not try to use this product to patch holes in plaster walls, or to add a smooth top coat to plaster walls. This product sets up too quickly - at best 20 - 30 minutes, and if it's old can set up much quicker. DAP makes a product called "Plaster Wall Patch" that sets up in 2 hours, and according to the manufacturer can have a working time of up to 90 minutes. You need that extra working time to be able to smooth out the patch or top skim coat. This product is best for craft projects or plaster molds. Since I can not seem to find Plaster Wall Patch at Home Depot I went to DAP's web site and got a list of stores I can get it from.
September 25, 2010
Rated 5.0 out of 5.0 by Vincent7 vinegar
A little vinegar added will delay the drying time.
Giving you more time to work it.
August 23, 2014
Rated 4.0 out of 5.0 by DIYMark Worked as expected
Worked as expected. DIYer. Not a plaster expert but I mixed it with joint compound for a patch job.
May 7, 2014