VANSIL® HR-1500 Wollastonite
- CAS Number
- 13983-17-0
- EC Number
- 237-772-5
- Chemical Name
- Calcium Metasilicate, Pumice
VANSIL® HR-1500 Wollastonite is a high aspect ratio, short needle grade of wollastonite. It is used principally as a mineral filler and reinforcing agent to enhance mechanical strength properties in high build coatings, texture paint, block fillers, joint compounds and adhesives. In high film build coatings, the needle-like shape of VANSIL HR-1500 improves mud crack resistance and sag resistance, while also contributing to peak retention in texture coatings. 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. It is recommended that high aspect ratio grades of VANSIL be added late in process to avoid possible damage to the needle structure from high shear mixing.
Properties
- Physical Form
- Powder
- Solid
Identification
Product families
Applications
- Construction Adhesives
- Sealants & Caulks
- Architectural Coatings
- Architectural Coatings
- Construction Adhesives
- Sealants & Caulks
- Ceramics & Refractory
- Wallcoverings & Decorative Laminates
- Fillers Levellers & Joints
Product Families
- Fillers & Extenders
- Glass & Ceramic Additives
- Other Processing Additives
Other characteristics
- Brand
- VANSIL
- End Uses
Abrasives, Building Materials, Cement, Ceramics, Insulating Materials, Polyurethane Foams, Wallboards
- Features
Corrosion Resistance, Crack Resistance, Excellent Adhesion, Good Brightness, Good Mechanical Properties, High Impact Resistance, High Mechanical Properties, Improved Hardness, Improves Coating Hiding Power , Provides Good Texture, Sag Resistance, Sound Dampening, Weather Resistance
- Functions
- Extender, Filler
- Usage
Functional filler in adhesives, abrasives, ceramics, elastomers, insulating materials, paint, plastics, resins, sealants, and wallboards.
- Markets
- Adhesives & Sealants
- Building & Construction
- Industrial
- Paints & Coatings
- Technology
- CASE Ingredients
- Industrial Additives & Materials
- Background
VANSIL HR-1500 is a shorter needle, high aspect ratio grade that exhibits properties similar to VANSIL WG for use in applications where a shorter needle is required.. It is recommended that high aspect ratio grades of wollastonite be added late in process to avoid possible damage to the needle structure from high shear mixing.
- Chemical Inventories
- AICS (Australia)
- CICR (Turkey)
- DSL (Canada)
- ECL (Korea)
- EEC/EU
- EHS (Malaysia)
- ENCS (Japan)
- IECSC (China)
- Industrial Additives End Use
- Abrasives
- Building Materials
- Cement
- Ceramics
- Insulating Materials
- Polyurethane Foams
- Wallboards
- Industrial Additives Features
- High Mechanical Properties
- Sound Dampening
- Industrial Additives Functions
- Filler
Technical data
Table 1 of 2
19 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Dry Brightness (Photovolt) | min. 85 | — | T-954 |
| Fineness (Retained on 200 mesh) | max. 5.0 | % | LAB 7 |
| Heat Loss | max. 0.5 | % | LAB 10 |
| Particle Size Distribution (Horiba LA-300, D10) | 3.0 | μm | — |
| Particle Size Distribution (Horiba LA-300, D50) | 13.0 | μm | — |
| Particle Size Distribution (Horiba LA-300, D90) | 50.0 | μm | — |
| Particle Size Distribution (Horiba LA-300, D95) | 68.0 | μm | — |
| Wet Screen Analysis (Plus 100 mesh) | max. 0.1 | % | — |
| Wet Screen Analysis (Plus 200 mesh) | max. 1 | % | — |
| Wet Screen Analysis (Plus 325 mesh) | max. 10 | % | — |
| Density | 2.9 | g/cc | — |
| pH Value (10% SIurry) | 10 - 11 | — | ASTM D 1208 |
Table 2 of 2
8 rows| Characteristic | Value | Unit |
|---|---|---|
| Calcium Oxide | 44.9 | % |
| Silicon Dioxide | 51.3 | % |
| Aluminum Oxide | 0.9 | % |
| Magnesium Oxide | 1.6 | % |
| Iron Oxide | max. 0.2 | % |
| Sodium Oxide | max. 0.1 | % |
| Manganese Oxide | max. 0.1 | % |
| Ignition Loss (1000°C) | 1.1 | % |
