Help, the interior polished wall putty no gloss

Alex

Moderator
#1
I made the interior polished putty
Heavy Calcium Carbonate: 750kg
calcium hydroxide: 250kg
Hpmc: 4.5
Pva: 2
Hps: 0.6
the customer said after polishing, there is no gloss and brightness. Feels not smooth, does not look bright, what is the reason?
 

paul

New Member
#2
Check the quality of calcium hydroxide, must be 400 mesh, heavy calcium powder 350 mesh, if your calcium hydroxide is good, with 200 kg enough.
Delete air entraining agent(HPS).
 
#3
pva is not recommended to polish wall putty, the surface will have particles,
want a good gloss:
1, calcium hydroxide purity is high, fineness is better, it is recommended to add 250-400 kg.
2, heavy calcium powder 350 -400 mesh.
3,Conditions permitting to add 5-10% calcium carbonate light, the surface is more delicate.
4, HPMC must have better water retention, more than 90%, the amount should be sufficient, so that, In the construction, the surface will not crack and Curls Up, facilitate the surface film and the workers make a beautiful luster.
 
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