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Thread: Fish eyes / pin holes

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    Default Fish eyes / pin holes


    Can anyone help please ?
    the past 4 houses I have jointed keep getting pin holes appearing ! Now I'm well aware that this happens when final coating onto wet or damp previous coat especially winter time but its been happening when final coating on bone dry 2nd coat and internals ?? Anyone any ideas why this could be happening ? I machine joint and sand with machines . I use bg quicksand and mix up the previous day so it's settled the day I'm using it ! I've rang bg technical and of course they have said there is nothing wrong with the quicksand ! Any advice would be appreciated . Thanks sj

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    this does the trick

    http://www.belmoretools.co.uk/acatal...Pro--64oz.html

    wont be back in stock until the 12th sept
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    Thanks for that Marcus ,can you let me know when it's back in stock ? My issue now is that for this stuff to exist shows there is a problem with the materials ? Could it be a case of my mixer being set on a speed setting that's too fast and then creates the air pockets ?

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    Sorry just realised you put 12th sept

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    not necessarily the mixer itself but more likely to be the paddle !
    if you use a standard plaster (basket wheel type paddle) here http://www.belmoretools.co.uk/cgi-bi...ml#a5200119514 then these do tend to aggregate the mix for jointing compounds far too much.

    Best mixers for jointing compounds are the vane type mixer like this http://www.belmoretools.co.uk/acatalog/Mud_Mixer.html these mix outwards and dont vcreate a negative pull on the compound which will trap air in the mix. - only problem is they are not in M14 screw thread so they dont fit mixers such as collomix / flex / alfra etc yu can only use them with a drill type mixer (many available online)

    Failing that add some no pock!

    hope this helps
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    Quote Originally Posted by belmoreboy View Post
    not necessarily the mixer itself but more likely to be the paddle !
    if you use a standard plaster (basket wheel type paddle) here http://www.belmoretools.co.uk/cgi-bi...ml#a5200119514 then these do tend to aggregate the mix for jointing compounds far too much.

    Best mixers for jointing compounds are the vane type mixer like this http://www.belmoretools.co.uk/acatalog/Mud_Mixer.html these mix outwards and dont vcreate a negative pull on the compound which will trap air in the mix. - only problem is they are not in M14 screw thread so they dont fit mixers such as collomix / flex / alfra etc yu can only use them with a drill type mixer (many available online)

    Failing that add some no pock!

    hope this helps
    nice bit of advice , thank you

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    Quote Originally Posted by Singing jointer View Post
    Can anyone help please ?
    the past 4 houses I have jointed keep getting pin holes appearing ! Now I'm well aware that this happens when final coating onto wet or damp previous coat especially winter time but its been happening when final coating on bone dry 2nd coat and internals ?? Anyone any ideas why this could be happening ? I machine joint and sand with machines . I use bg quicksand and mix up the previous day so it's settled the day I'm using it ! I've rang bg technical and of course they have said there is nothing wrong with the quicksand ! Any advice would be appreciated . Thanks sj
    I do exactly the same as you and am also seeing these holes. It seems to happen more often on really hot days? maybe the stuff is going off too quick? I've changed the setting on the box to a tighter coat and that seems to have helped. Obviously can't do that on the corner finisher though!

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