blemishes after water coat

Postby armytouch » Sun Jan 20, 2008 12:09 am

hi,having problems with rough blemishes when plaster drys,how i plaster.
step1-ensure surface clean,remove loose debris.
step2-apply pva to surface.
step3-first coat.
step4-apply second coat when first coat starting to go off,usually after about 15-20 mins.
step5-smooth out second coat.
step6-apply water coat,find painting water over plaster when it going off again after about 20mins covers some of the small recesses.
step7-wet trowel off ecess water starting from top corners down,then top of wall down then side to side.
step8-fill over small bleamishes with watered plaster off trowel.
step 9-leave for about 20 mins and dry trowel off.
Problem i am finding is when the plaster drys there are small,rough blemishes dotted around wall.
what am i doing wrong?
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Simply Build It

Postby jaydavis plasterer » Sun Jan 20, 2008 9:09 pm

hi armytouch,
are the blemishes like patches with small dimples like the surface of a golfball? if so it could be because you arent applying enough pressure.
do you have ample lighting when you are skimming if not this could be the reason you arent seeing them earlier.
jaydavis plasterer
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Postby armytouch » Sun Mar 02, 2008 11:36 pm

hi thanks on which coat you referring on not applying enough pressure last top coat or water coat,cheers
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