Dyes you should not use

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skyking20.parrisisland	Dyes you should not use	Lead	[-]
Posts: 10 (05/07/09 06:13:38) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Tags : None I was having problems finding dry tempra paints to dye my densite 4. So I thought I would try a couple of other things. I had some liquid concrete dye. That was a disaster! The casts never did cure and I had to virtually pressure wash the molds to clean them. I also tried some red Rit Dye. These samples cured but it tripled the curing time. I was finally able to find some brown dry tempra and it works fine. I am still looking for red. Please benifit from my experience! skyking
Klingbeil		#1	[-]
Posts: 1874 (05/07/09 11:55:12) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	what was the ratio of rit dye to plaster that you used? you may have needed to add a little salt to the mix to help with the casting time -Klingbeil-
Rastl		#2	[-]
Posts: 643 (05/07/09 12:38:37) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	The concrete dye I have (but haven't tried) is meant to be used on cured concrete, not in the mix. And I haven't tried it because it is horribly nasty, corrosive stuff that can't be around metal. I don't know if I want it around me. Consistency and dedication are the hallmarks of -- oo! Shiny! My blog of stuff RastlCon happened!
Eiswulf Velikij		#3	[-]
Posts: 465 (05/07/09 13:32:47) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	I posted a product on the review page a while ago that is a concrete dye that I have been happy with in conjunction with Hydrostone. I don't know how it would work with Densite though. The stuff I use is not caustic and I have not noticed any staining of my molds or any adverse reaction to it. I don't think it has changed the drying / demold time either. Well try as I might I can't find the link I was looking for. I will have to look the product up again later this evening and I will link it here. Democracy is two wolves and a rabbit voting on what is for lunch. Liberty is a well armed rabbit contesting the vote! Last Edited By: Eiswulf Velikij 05/07/09 13:49:56. Edited 1 times.
truefreak		#4	[-]
Posts: 2 (05/08/09 07:23:00) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	I tried this stuff http://www.quikrete.com/productlines/CementColor.asp in black (or charcoal I think they call it). Seemed to work ok...I used very very sparingly and did not see any significant increase in curing time or any staining to the molds. I used about 4 drops in 200g of plaster and got a nice mid grey.
Bruunwald		#5	[-]
Posts: 238 (05/08/09 08:03:31) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	I have a bottle of the Quikrete stuff, too, in reddish, but haven't used it yet. It was recommended to me by somebody who knew my application. But still, it remains second-hand recommendation until I try it. Maybe I'll give it a go this weekend and report back here.
SeishiSan		#6	[-]
Posts: 188 (05/08/09 14:49:10) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	Did you use liquid RIT or the powder? I have been successful using cheap black acrylic craft paint mixed into ready to pour plaster.
Eiswulf Velikij		#7	[-]
Posts: 467 (05/09/09 13:12:23) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	The Quikrete is what I use. I bought the red and just give a squirt into my water. I started out by using about 4 to 6 drops and now just give it a random amount. It makes the Hydrostone come out sort of a Terra Cotta color. By using a random amount my blocks have a variety of colors so that is kind of nice. Democracy is two wolves and a rabbit voting on what is for lunch. Liberty is a well armed rabbit contesting the vote!
Kovax	Re: Dyes you should not use	#8	[-]
Posts: 2089 (05/11/09 05:32:33) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	I tried the Quikrete red cement colorant, and it did increase the plaster setting times noticably for Hydrocal or Hydrostone. The plaster mix quickly got "lumpy", but the blocks took almost double the normal time to harden sufficiently for demolding. The pieces came out of the mold in a beautiful shade of "terracotta" red, perfect for the Clay Tile Roof mold. Unfortunately, when they fully dried, they lightened up to a slightly pale pastel shade which gives the "impression" of clay tile, but still needs painting for the "full effect". At least it would look better than bright white plaster if chipped.
DocElboze		#9	[-]
Posts: 19 (05/11/09 07:56:44) Reply Quote More My Recent Posts Message Me Connection Blocking Invite Ignore User's Posts	I just use cheap tempra paint I found at the dollar store in a squeeze tube in my mix water. The black gives it enough of a gray tint for my tastes. This is a .sig - this is only a .sig; if it had been an actual post it would have been way kewler...

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