Lansperse SPA
Product Category: Coatings Additives
Conventional Dispersing Agent for Aqueous Systems
A Sodium Polyacrylate that has been developed to give a product of a specific molecular weight that offers optimum dispersing properties for a wide range of inorganic powders such as Kaolin, Calcium Carbonate and Talc.
Specification
Appearance @ 25°C
Clear to hazy liquid free from foreign matter
pH (neat)
6.5 - 8.5
Solid content
38.0 - 42.0
Typical Properties
Composition
Sodium Poly Acrylate
Odour
Mild
Viscosity at 25°C (cP)
251
Specific gravity at 20°C
1.28
Solubility in water
Soluble
Pour point °C
<0
Flash point closed cup °C
>150
Lansperse SPA is an APE and VOC free dispersing agent for aqueous pigment dispersions. Lansperse SPA is particularly recommended for the dispersion of Titanium Dioxide. With the use of Kemectant EB3 and Lansperse DS200W pigment loadings of up to 70% can be achieved.
Recommended levels based on pigment level:
Inorganic Pigments 1 - 4%
Incorporation
Incorporate the dispersing agents into the aqueous binder during high-speed dispersion before the addition of the pigments. For higher than 30% pigment loadings this mill base must then be processed through high energy dispersion techniques such as bead mills, basket mills and three roller mills.