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Silica matting agent should have the following characteristics: easy to disperse; Good extinction performance, low addition can produce strong extinction performance; Less interference to the transparency of the film; It has little influence on the mechanical and chemical properties of the coating. Good suspension in liquid coating, can be stored for a long time, will not produce hard precipitation; It has little effect on rheological properties of coatings. High chemical inertness.
Silicon dioxide matting agent has the above characteristics, so in the paint dosage is the most. It is high in chemical purity, insoluble in water, various organic solvents and common acids, bases, only with concentrated alkali and hydrofluoric acid reaction, high in chemical inertia. Its index of refraction is 1.46, and a variety of coating resin refractive index 1.4~1.5 close, so good transparency. Silica matting agent treated with wax will not precipitate in solvent coatings during storage. Because it is a porous material, a low addition can produce strong extinction.
(2)Densified Micro Silica -92D package is: 1000kg Jumboo bag 25kg paper or plastic bags physical properties are regularly tested by SGS and Borida Laboratory with international Densified-Grade SiO2 >92%, with a typical bulk density of 550-730kg/m3 Special packing can be supplied by request.
General Packing Quality Control Micro Silica Grade 92 (1)Undensified Micro Silica -92U package
is: Borida Microsilica Iis dry silica fume available in two main forms: 550kg Jumbo bags main forms: 25kg paper or plastic bags Chemical composition and Undensified -Grade SiO2>92%,with a typical bulk density of 200- 1000kg Jumboo bag tested by SGS and Borida 350kg/m3 standards.
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.