Styronal® 300

Tech nical Information



Chemical nature
Aqueous, anionic dispersion of a carboxylated
copolymer of butadiene and styrene. This product does not contain any plasticizers or solvents.
Ionic charge: anionic
Physical form: aqueous, milky white dispersion
Low-temperature stability: Not resistant to frost.

Areas of appl icat ion
Binder for coating paper and board

Binder for general purposes and in particular for coated art paper, carbonless paper and LWC printing paper.

Technical data
Solids content* 49 – 51 %
pH* 6.0 – 7.0
App.- viscosity* 100 – 300 mPa·s
Particle size approx. 0.15 µm
Density approx. 1.02 g/cm3
* For detailed information see Specification Data Sheet.

Applicat ions
Styronal 300 is a binder for coating paper and board. Its properties are such that it can be used to coat paper and board that is printed by all conventional
printing processes.

The pH of pigment slurries should be in the neutral-to-alkaline range before Styronal 300 is added. The dispersion should not be subjected to excessive shear, and care should be taken to avoid air being entrained.

We would recommend using rotary displacement pumps for coating colours prepared with Styronal 300.

All pipelines and equipment used to prepare pigment slurries should be flushed thoroughly with cold water immediately after shutting down the coater.

Paper coaters have to carry out their own trials when developing products that contain Styronal 300.

Its compatibility with other ingredients, its stability during coating and its effect on the ability of coatings to adhere to different substrates, etc., are affected by
a variety of factors which are too numerous for us to take into account in our own trials.

Storage:
The air in the headspace of bulk storage tanks must be kept saturated with water vapour at all times.

This product must not be allowed to come into contact with bare iron or with copper and its alloys.

Customers interested in purchasing this product in bulk should consult our leaflet on “The handling and storage of polymer dispersions”.