PART 1.About CMC
CMC is a water-soluble polymer cellulose,Used in the ceramic industry as a suspending and binding agent for glazes or cosmetic clays. The main function is to reduce the drying shrinkage of glaze,increase the strength of green glaze,Make it difficult to peel off from the base body. It allows for even drying after glazing,Thus forming a dense and solid glaze,Make the fired ceramic tiles smoother and smoother.
PART 2.Product properties
Outlook | white solid powder |
Purity (dry basis) | >99% |
Moisture | ≤6% |
Viscosity | 30-1800serials |
PART 3.Applications
Our company now supplies various high, medium and low viscosity CMC,Dosage is about 0.15%(Add 1.5kg to 1000kg of dry glaze).Adding amount is between 0.05~0.4%.Granular CMC will not clump when grinding,It won’t fly when feeding the ingredients,Combining high quality and environmental hygiene.
PART 4.Experimental data
Formula | Process | Result |
Glaze:300g;water :120g; CMC:0.5g;liquid sttp 09D:0.75g | grinding 14mins | viscosity:57s density:1.86 |
Changes in viscosity |
time | after grinding | 1day | 2days | 3days | 4days | 6days |
viscosity | 57s | 42s | 41s | 42s | 41s | 41s |
PART 5. storage method:
This product is packed in woven bags(25kg/bag).
Dust-proof and moisture-proof storage, shelf life 24 months
PART 6. Things to note
It is recommended to use the glaze slurry within 3 days after making it during production.Avoid excessive temperature that may cause the glaze to deteriorate.If you need to store it for a longer period of time, appropriate amount of preservatives can be added.