Calcium Carbonate for Adhesive & Sealants Industry
Description:
Precipitated Calcium Carbonate ( PCC ) is an innovative product derived from lime stone, which has many industrial applications. PCC is made by hydrating high- calcium quick lime and then reacting the resulting lime slurry with carbon dioxide. The resulting product is extremely white and typical has a uniform narrow particle size distribution. PCC is available in numerous crystal morphologies and sizes, which can be tailored to optimize performance in a specified application.
Application:
Precipitated Calcium Carbonate is used as a rheology modifier in Adhesive & Sealant Industry in a variety of sealants formulation such as PVC Plastisols, Polyurethane, MS polymers, Polysulphide epoxy and as a chemical additive to add properties the most notable being thixotropy. It has Aragonite structure with different particle size distribution and apparent densities.
Properties:
| Application | Polyurethane & Polysulphide Epoxy | PVC Platisols |
| Grade Recommended | KC – 3 | KC – 4 |
| Bulk Density gm/ml (Tapped) | 0.74 – 0.83 | 0.68 – 0.80 |
| Loss on Drying (105*C in 1 hr) | 0.5 Max | 0.5 Max |
| Specific Surface Diameter (micron) | 0.45 | 0.40 |
| Average Particle Size D50 | 6 – 8 | 5.5 – 6.5 |
| Flow Point (ml/15 gm) | 12 – 15 | 14 – 18 |
| Fineness % (through 45 micron) | 99.50 | 99.50 |
| DOP Absorption (gm/100gm) | 26 – 32 | 30 – 36 |
| Purity as CaCO3 % (min.) | 98 | 98 |
| Crystalline Habit | Calcite | Calcite |