Hoffmann Sillitan Z86

1. Description

SILLITIN Z 86 and SILLITIN Z 86 puriss is a natural combination of corpuscular silica and lamellar kaolinite. These two elements together form a loose structure which offers particular advantages in terms of application possibilities when used as a functional filler.

Characteristics:

Appearance: free-flowing powder

Brightness Y DIN 53 163: 82

Brightness Z DIN 53 163: 75

Residue > 40 μm: 20 mg/kg

Residue > 200 μm: 3 mg/kg

Volatile matter

at 105 °C: 0.5 %

Electrical conductivity: 80 μS/cm

Density: 2.6 g/cm³

Particle size distribution

D50 : 1.9 μm

D97 : 9.0 μm

Surface area BET: 11 m²/g

Oil absorption: 55 g/100 g

Refractive index n: 1.55

Puriss grade:

As a result of a sophisticated manufacturing process the very low sieving residue is reduced even further from the values given above to the following:

> 40 μm: 8 mg/kg

> 200 μm: 1 mg/kg

In addition the very good dispersion behavior is once more improved.

Packaging: *

Paper bags: à 25 kg

PE bags: ≤ 25 kg

EVA bags: ≤ 20 kg

Big Bags: 600 - 1000 kg

Bulk: ≤ 22 t

*The puriss-grade is available in paper bags of 25 kilos only.

Shelf life:

Unlimited if properly stored under dry conditions.

2. Applications

In paint and varnish applications SILLITIN Z 86 and SILLITIN Z 86 puriss can be used as functional fillers either on their own or combined with extenders or flatting agents.

Fields of application:

• emulsion and silicate paints (exterior and interior emulsion paints)

• industrial paints

• wood and foil coatings

• anti-corrosion coatings

• primers and fillers also for the automobile industry

• sealing and embedding compounds

• electrophoretic paints

It stands out for its excellent dispersion properties, moderate yield point and pseudoplasticity with a high solids content and high abrasion resistance. In unpigmented coatings it achieves good transparency with a slight yellow tinge.

SILLITIN Z 86 puriss also has advantages in the following instances:

• extremely high requirements on dispersion behavior (paint production without grinding)

• very low coating thickness

Formulation principle:

solvent-based, solvent-free, water-based.

Hardening principle:

all conventional reaction types, also UV-curing.

Minimum film thickness:

> 10 μm, less in special cases.

Metering:

up to 50 % depending

3. Benefits

• high filling ratio

• outstanding dispersion behavior

• good pigment dispersion (spacer effect)

• low abrasiveness

• very low tendency to settle

• soft sediment

• good wet edge strength

• quick drying

• weathering resistance

• breathability

• scratch resistance

• high abrasion resistance

• good transparency

• slight flatting effect

• complies with the standards on basic foodstuffs of the BfR and FDA

Puriss also provides the following benefits compared with the base SILLITIN Z 86:

• extremely low sieving residues

• excellent dispersion behavior

4. Particle size distribution

The measurement method for these particle size distributions is based on the Fraunhofer diffraction spectrum. The analyses were carried out with Mastersizer 3000, a laser apparatus of Malvern.

Important: The data on particle size distribution is highly dependent upon the method used, test preparations and the measuring device itself. As a result the values given may not be directly comparable with those provided by another manufacturer. If you have any queries please contact us direct.