QUAVA AS 991 is an amorphous sodium aluminum silicate powder. It is used as an outstanding gloss control agent in semi-gloss and matting systems. It offers a cost savings solution by replacing titanium dioxide (TiO2) up to 30% once reached the maximum PVC with mineral fillers, adding value with superior whiteness level, contrast ratio and scrub resistance.
QUAVA AS 991 displays easy dispersion and fast incorporation with superior performance as a flattening agent. It has excellent opacity, whiteness level, optimized particle size distribution, viscosity control, and pH regulation. QUAVA AS 991 also benefits from cost reduction by TiO2 replacement by up to 30%. It delivers smooth and uniform finishing and increases the tint strength in coloured paints. QUAVA AS 991 has enhanced properties such as improved leveling, washability, abrasion, and scrub resistance. It can be used as an anti-yellowish agent with UV and weathering protection as it reduces the tendency to pick up dirt. Additionally, it also has anti-sagging, anti-settling effect and storage stability.
The product appears inert in chemistry, being very stable both in acid and alkali mediums. It has no chemical reaction with any components in coatings, including binder, solvent, dispersant, etc.
Its PH ranges between 9.7 and 10.8, ensuring the stability of latex paints and avoiding corrupting the walls of metallic tanks. Furthermore, it has several hydroxyls, allowing it to be easy to be wetted and disperse.
| Parameter | Typical Value |
|---|---|
|
Appearance |
Loose white powder |
|
Specific surface m2/g |
100 |
|
Average Particle Size,μm |
5.5 |
|
Bulk Specific gravity g/ml |
≤0.28 |
|
Moisture Loss at 105 ℃,% |
6-9 |
|
Ignition loss ,% |
≤9 |
|
pH value(5% in water) |
9.7-10.8 |
|
Density g/cm3 |
2.1 |
|
Refractive Index |
1.46 |
|
Whiteness, % |
≥ 97 |
The product is highly recommended for paints, coating, printing inks, textile inks, wallpaper, newsprint paper, coated and powder coatings.
Looking for a new filler/Extender in water based latex paint to help reduce titanium dioxide benefitting from reduced cost and equal performance? Quava AS 991 is the solution. Contact us at sales@mahachem.com for more information.
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