cream of tarta

Discussion in 'Plastering and Rendering' started by jrplastering, 4 May 2010.

  1. jrplastering

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    hi all, i was on a site today and got talking to one of the other plasterers hes one of the old timers well served in the trade, he told me that if you put a pinch of cream of tarta in with your guage then the plaster will stay live for so much longer thus you can spread soooo much more,
    1. is this true
    2. if so does it have any negative effects on the quality of the finish
    3.again if this does work where will i get this cream of tarta from

    what do we think guys
    thanks JRP
     
  2. roughcaster

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    I've never heard of that one before JR. I Googled "cream of tartar", and it said it's,, "Potassium Hydrogen Tartrate",,,, an acid salt. That's it from me. :confused:

    Ohh,,, Hang on a minute,,,
    Mrs RC tells me that "tartar sauce" is great with fish. :LOL:
     
  3. jrplastering

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    haha well thanks anyway RC i was counting on you to know haha
     
  4. roughcaster

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    Hi JR,,,
    I Googled "Cream of Tartar" again, and found one or two references of cream of tartar being used in plaster,, go have a look. One plastering site had a similar question, and one reply was,,,, "salt will accelerate the plaster set,,,, cream of tartar will retard it",, but as i said earlier, i have never tried either of these methods. ;)
     
  5. external

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    cream of what,salad dressing wont help your plastering mate(but i've heard an onion salad can slow a set)
     
  6. jrplastering

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    thanks RC and external my plastering dnt need any help thanks i herd something at work that took my interest and i just wanted to know weather it was true or not
     
  7. trowelmonkey1

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    i've heard exactly the same jr, from a different source, never been brave enough to stick a sauce into my finish, happily stick it all over my fish though!!
     
  8. stevethespreader

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    ah but youve been brave enough to put board adhesive in as a retarder though :eek:
     
  9. trowelmonkey1

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    blimey you've a good memory steve :D that advice was from a good source ;)

    yes i was brave enough, just the thought of a fish sauce seems a step too far! plus i'm getting quicker these days so less need to worry about it ;)
     
  10. stevethespreader

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    yes i keep meaning to try the board adhesive theres never none onsite though, i googled the cream of tartar thing and apparently some spread was swearing by it half a tub for 3 bags i think he said i cant see me trying that though but if i come across some board adhesive i will give it a go just to see if our man is right or not
     
  11. spreadandlay

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    hi, i had an old timer tell me a pinch of baking powder delayed the chemical reaction, never tried it, should have a couple of times!!
     
  12. stevethespreader

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    yes theres a few storys going about bicarbinate of soda or baking soda was something i was told ages ago i think thats what it was not sure now theres so many stories im sure someone will post another
     
  13. external

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    jr mate if you want to slow a set just add a good dollop of pva to your mix,don't matter if its skim,backing ,dabbing or render,and you can take that from a time served pro ,honest i asked him before i posted,dabbin addy will slow your set to just over an hour but tends to tear.
     
  14. spreadandlay

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    Hi again, i would have thought board adhesive would have been like rapid set! however i know that you lot know your stuff so i wont even question it! the pva thing i am probably more likely to trust just because pva and skim go together like fish and tartare.
     
  15. Micilin

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    The adhesive won't make it tear, but too much will make it greasy . I use it if I get a quick pallet , or in very hot weather. Hand ful or two does it, you try the first set and alter it after that.

    Pva will also work, but it's a tad expensive compared to a handful or two of board adhesive!

    Cream of Tartar is a very old one, but I have never used it (or at least don't remember).

    The idea is not really to get bigger sets on with normal gear, (finish allows you enough time to get a decent guage on) but to slow down a batch of gear that has got a quick set time, or slow it down in warm weather.
     

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