lithopone 28-30% b301 b311 suppliers



Application:
1. Due to its rheological and optical properties, Lithopone offers technical and economic advantages wherever organic and inorganic resin systems need to be relatively highly pigmented for specific applications. Lithopone has therefore traditionally been used in putties, mastics, jointing and sealing compounds, primers, undercoats and marking paints. In powder coatings it is possible to replace TiO2 partially, very economically.

2. The low Mohs' hardness of Lithopone leads to low abrasiveness in comparison with TiO2.

3. Lithopone 30 % (= 30% zinc sulfide share) is proven to be of particular use as a TiO2 Substitute in thermoplastic masterbatches. Even at very high pigment loadings it disperses easily. A masterbatch containing 50 % TiO2 and 25 % Lithopone 30 % DS has the same hiding power as one containing 60 %TiO2. Cost savings are strongly related to the price ratio of Lithopone and TiO2 and the price of for example polyethylene or polypropylene.

4. The Lithopone batch has a much higher extrusion rate too. Furthermore the impact strength of many thermoplastics such as PP and ABS can be noticeably improved by using Lithopone as a TiO2 substitute. Generally spoken, Lithopone can be used at loadings up to 80 % by weight without causing polymer breakdown

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Rutile titanium dioxide, the most common form of TiO2, possesses a tetragonal crystal structure and exhibits unique physical and chemical properties that make it suitable for a wide range of applications. One of the key advantages of rutile TiO2 is its high refractive index, which ranges from 2.4 to 2.7. This high refractive index enables rutile TiO2 to provide excellent hiding power and whiteness in coatings, plastics, and other materials.

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