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VANSIL® W-20 Wollastonite

VANSIL® W-20 Wollastonite is a relatively coarse (1 Hegman fineness) low aspect ratio grade of wollastonite that can be used as a general purpose extender pigment where ultra-fineness is not required such as texture paints and block fillers. The naturally high pH of wollastonite helps to buffer latex paints and coatings, which contributes to improved corrosion resistance and weathering. This also extends in-can stability and prolongs the lifetime of the coating.

Brand: VANSIL (13 products)

Functions: Extender, Filler

Chemical Family: Calcium Salts, Hydrocarbons, Silicates

Features: Corrosion Resistance, Excellent Weatherability, Good Toughness, High Performance, Improves Adhesion, In-Can Stability

End Uses: Latex, Powder Coating

Technical Data SheetSafety Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Chemical Family
Calcium Salts,
Hydrocarbons,
Silicates
Chemical Name
Calcium Metasilicate,
Pumice
CASE Ingredients Functions
Extender
Industrial Additives Functions
Filler
CAS No.
13983-17-0
EC No.
237-772-5
Technologies
CASE Ingredients,
Industrial Additives & Materials
Product Families
CASE Ingredients — Additives
Fillers & Extenders
Industrial Additives & Materials — Construction Chemicals
Mortar & Gypsum Additives

Features & Benefits

CASE Ingredients Features
Corrosion Resistance,
Excellent Weatherability,
Good Toughness,
High Performance,
Improves Adhesion,
In-Can Stability
Product Background

VANSIL W-20 is a relatively coarse grade with 2.5% retained on 325 mesh sieve. It will disperse to 0 to 1 Hegman fineness at three pounds per gallon, thereby providing some degree of film roughness where desired.

Applications & Uses

Coating Type
Latex,
Powder Coating
Uses

Functional filler in adhesives, abrasives, ceramics, elastomers, insulating materials, paint, plastics, resins, sealants, and wallboards.

Properties

Physical Form
Powder,
Solid
Typical Properties
ValueUnitsTest Method / Conditions
Dry Brightnessmin. 80-T-954
Fineness (Retained on 325 mesh)max. 3.0%T-944
Density (At 25°C)2.9 3Mg/m³-
Hegman Fineness (3lbs/gal)0.5--
Moisture Content0.5%-
pH Value (10% SIurry)9.8--
Oil Absorption (Rub Out)20.0--
Volume Displacement24.2lbs./gal-
Particle Size Distribution (Horiba LA-300, D10)2.5--
Particle Size Distribution (Horiba LA-300, D50)15.6--
Particle Size Distribution (Horiba LA-300, D90)43.6--
Particle Size Distribution (Horiba LA-300, D95)56.7--
Chemical Analysis
ValueUnitsTest Method / Conditions
Calcium Oxide44.9%-
Silicon Dioxide51.3%-
Aluminum Oxide0.9%-
Magnesium Oxide1.6%-
Iron Oxidemax. 0.2%-
Sodium Oxidemax. 0.1%-
Manganese Oxidemax. 0.1%-
Ignition Loss (1000°C)1.1%-

Regulatory & Compliance

Chemical Inventories
AICS (Australia),
DSL (Canada),
ECL (Korea),
EINECS (EU),
ENCS (Japan),
IECSC (China),
ISHL (Japan),
KECI (Korea),
NZIoC (New Zealand),
PICCS (Phillipines),
TCSI (Taiwan),
TSCA (USA)

Technical Details & Test Data

VANSIL® W Wollastonite Particle Size Distribution

VANSIL® W-20 Wollastonite - Vansil® W Wollastonite Particle Size Distribution

Storage & Handling

Storage Note

Due to the agglomeration of VANSIL W during prolonged storage, more than 6 months inventory is not recommended.