Calcium Carbonate (PRECARB260)

Product Description

Paper industry
SCHAEFER PRECARB - precipitated calcium carbonate - ensures absolute whiteness and opacity of paper, increases its volume and improves its printability.

In the paper mass, it is used for cigarette paper, thin printing paper and high-quality writing and printing papers (e. G. Watermark paper).

For special papers with functional coatings, such as carbonless auto-copying paper, thermo sensitive paper and ink-jet paper, customized SCHAEFER PRECARB pigments meet very specific requirements.

Paints, plastics, leather, etc.
SCHAEFER KALK products are indispensable as raw and process materials for the production of many industrial goods for daily needs.

Paints:
O. SCHAEFER PRECARB is used as an extender for white pigments in emulsion paints.

Plastics:
O. As functional filler, SCHAEFER PRECARB improves the optical properties (whiteness, gloss, surface finish) and the mechanical strength of:
Thermoplastic materials (e. G. PVC profiles)
Thermosets (e. G. Unsaturated polyester resin molding compounds)

Leather:
OSCHAEFER PRECAL is needed for the gentle pre-treatment of high-quality leather types for the automotive, furniture and clothing industry

Detailed Product Description Features:
1) Used as paper making filler
2) Used as plastic additive
3) Reduces cost
4) Enhances operation and function of paper machinery
5) In plastic compounding as reinforcing functional filler in extruded weatherable profiles, conduit and pipes. It typically can substitute up to 20% of existing reinforcing additives such as CPE, MBS, or SBS, etc.
6) Enhances whiteness of papers
7) Improves softness and thickness of papers
8) Gives paper smooth feel
9) Usage: Filler of high-grade paper such as two-sided glue paper, cigarette paper, plastic, static copying Paper, cartography paper
10) Main constituent (CaCO3) (%): 99 or higher
11) pH (10% soliquit): 7.5. - 10.0
12) Moisture (%): 0.2~1.0
13) 105oC volatitle (%): 0.10 ~ 0.70
14) Insoluble substance in hydrochloric acid (%): 0.05
15) Average grain: 2.0
16) Fe (%) 0.10
17) Mn (%) 0.010
18) Screenings:
A) 325μ m (%): 0.2
19) Whiteness (R457) (%): 95 or higher
20) Subside volume (mg/L) 3.4
21) Specific Surface: 24000 cm2/g( we can offer 22000to 32000cm2/g)
21) Appearance: Powder

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