ASCOM 50 is a high-purity limestone filler with the highest whiteness and low iron, silica, and magnesium levels. It is used in water-based decorative paints, semi-gloss powder coatings, rubber moldings, paints, adhesives, and sealants, sourced from vast limestone reserves.

Chemical Family: Calcium Salts, Carbonates

Processing Methods: Molding

Oil Absorption: 20.0 - 21.0 g/100 g

Features: Excellent Whiteness

Synonyms: Calcitic limestone, Natural calcium carbonate

Technical Data Sheet

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Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
CASE Ingredients Features
Materials Features

Applications & Uses

Properties

Physical Form
Physical Properties
ValueUnitsTest Method / Conditions
Whitenessmin. 98%-
Brightness Rymin. 96.5%DIN 53163
Density2.7g/ml-
Refractive Index1.59--
Mohs Hardness3--
pHmax. 9-ISO 787/9
Oil Absorption20 - 21g/100gISO 787/5
Moisture Contentmax. 0.2%-
Loose Bulk Density1.02 - 1.12g/cm³-
DOP Absorption32.9 - 33.9g/100g-
Typical Properties
ValueUnitsTest Method / Conditions
Particle Size (retained on sieve 45μm)max. 0.01%-
Particle Size (D97)8 - 9μm-
Particle Size (D50)2 - 2.5μm-
Particle Size (max. 2μm)48 - 52%-
Chemical Analysis
ValueUnitsTest Method / Conditions
Calcium Carbonate99.18%-
Calcium Oxide55.91%-
Silicon Dioxide0.09%-
Aluminium Oxide0.04%-
Iron Oxide0.01%-
Magnesium Oxide0.05%-
HCI Insoluble Contentmax. 0.2%-
Loss on Ignition43.64%-

Technical Details & Test Data

Particle Size Distribution

ASCOM 50 - Particle Size Distribution - 1

Packaging & Availability

Packaging Type
Packaging Information

25 kg bag or Jumbo bag