Gray calcium powder

Calcium carbonate is added to methyl cellulose or hydroxypropyl methyl cellulose hydroxyethyl. In that way, it will not be layered and stretched. Cellulose can be thickened and suspended to keep the solution uniform and up to down.
Gray calcium powder is an air hardening cementitious material. It can improve the water resistance and washability of coatings in building coatings. This kind of active filler has been used in polyvinyl alcohol acetal paints in the past. However, the ash powder can give excellent performance to the coatings at a lower cost, so in recent years, according to the new requirements of the national standard, the ash powder is applied to the synthetic resin emulsion coating, so that the coating can meet the requirements of GB/T 9756 - 2001 and GB 18582 - 2001 at a lower cost, and the state of the coating in the container. The flow leveling and the impression of the film are all good. Therefore, under the new requirements, calcium oxide powder still has applied value. However, the possibility of the application of lime powder coating to the old coating still exists, so it is not necessary to exaggerate the effect of lime powder, but it can only be used in middle and low wall coating.
The main composition of ash powder is a mixture of Ca (OH) 2, CaO and a small amount of CaCO3. It is a fine processing product of lime. It is made of natural limestone with CaCO3 as the main component. After calcined at high temperature, it becomes lime (CaO), then selected, partially digested and then crushed through a high-speed pneumatic hammer pulverizer. White and delicate. In recent years, due to the progress of powder processing technology, the market already has fineness of more than 600 mesh or higher fineness of calcium oxide powder.
[use]
1, 200 mesh: it can be used for all kinds of feed additives with calcium content above 55.6 and no harmful ingredients.
2, 250 mesh to 300 mesh: used as raw materials for plastic factories, rubber factories, paint factories, waterproofing materials factories, and interior and exterior walls. The whiteness is above 85 degrees.
3, 350 mesh to 400 mesh: used for manufacturing buckles, water pipes, chemical industry. The whiteness is above 93 degrees.
4, 400 mesh to 600 mesh: can be used for toothpaste paste, soap. The whiteness is above 94 degrees.
5, 800 mesh: for rubber, plastic, cable, PVC whiteness is above 94 degrees.
6, 1250 mesh: PVC, PE, paint, coating grade, papermaking base coating, papermaking surface coating, whiteness is above 95 degrees. It has high purity, high whiteness, non-toxic, odorless, low oil quality and low hardness.