Description
1. Water based coatings are considered [green" or environmentally friendly as the VOC content is generally very
low or negligible in quantity. Water based coatings can be applied over almost all ink types utilizing flexo/anilox,
gravure, ink-train and roller coaters or variations of these. Waterborne products have also used in the industrial
finishing of wood, plastic and metal substrates.
2. Silica Matting Agent specialized used for Matte/Semi-gloss water based Coatings. It provided high matting efficiency,
excellent coating appearance and high transparency. As well as low oil absorption, easy dispersion and smoothly touch
with minimal impact of viscosity. Generally, the untreated products provide highly effective matting at minimal addition
levels, thus enabling the formulation of clear, low-gloss finishes with high transparency and chemical resistance properties.
Characters
1. Avoids coagulation of shear-sensitive binders; and reduced micro-foam generation and lower demand for
anti-foam or defoamer additives.
2. Excellent Transparency. The refractive index of silica is comparable to most resin systems.
3. Surface smoothness and improvement in scratch resistance: These silica have minimal effect on the physical
properties, allowing development of smooth films with excellent hand-feel, scratch resistance and stain resistance.
Chemical Data
Item Type | SL-320 | SL-750 |
Content of sio2(dry basis) %, | ≥99.0 | ≥99.0 |
Porosity ml/g | 1.8-2.0 | 1.8-2.0 |
Oil absorption, g/100g , | 270-320 | 270-320 |
Particle Size, um(Malvent,D50) | 4-4.5 | 6-7 |
Loss on drying(105℃,2Hrs) | ≤5.0 | ≤5.0 |
Ignition loss(1000℃,2Hrs) | ≤7.0 | ≤7.0 |
Whiteness | ≥90.0 | ≥90.0 |
PH(5% Liquor) | 6-7 | 6-7 |
Surface Treatment | None | None |
Application
1. Water-based wood coatings, water-based industrial coatings, water-based inks, water-based plastic coatings,
water-based metal substrates.
2. Printing Inks, Gravure Printing Ink, Offset Printing Ink, Screen Printing Ink, Printing Packing Material.
3. Clear and pigmented wood care applications, such as NC wood coatings, PU wood coatings, unsaturated polyester
wood coatings.
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent