Organoclay Rheological Additive(BP-34)

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BP-34 is an organo clay (modified bentonite), designed especially for use in solvent based system. It can be used widely in solvents from low polarity to medium-high polarity. Advantages 1.High gelling efficiency. 2.Light color gel. 3.Produce reproducible thixotropic consistency over a wide temperature range 4.Imparts particle suspension, preventing hard settling of pigment and fillers. 5.Exerts strong film reinforcing action in organic binder systems. Typical properties Composition Organic derivative of a montmorillonite clay Appearance Fine white powder Moisture content(105℃,2hr) ≤3.5% Loss on ignition, %(1000℃) 28-30% Bulk density 0.53g/cm3 Fineness (200 mesh) ≥98% Application 1.Marine paint, Industrial paint, heavy-duty, anticorrosion paint such as bituminous coatings, polyester paints, Alkyd paints. 2.Inks. 3.Grease. 4.Sealant. 5.Unsaturated polyester putty. Using BP-34 disperses under high shear and requires a polar activator for best efficiency. Heat is not required to obtain good dispersion. Addition levels are typically in 0.2%~2.0%. Polar activator (95% Ethanol or 95% Methanol) is needed. Normally addition level of polar activator is recommended to be 40%~50% of BP-34 in weight. If in xylene system, addition level of polar activator is about 30%-40% of BP-34 in weight. Pre-gel is made as below procedure. 1.Charge solvent to mill 2.Slowly add BP-34(6-10% by weight of total pregel) to mill under agitation. 3.Mix at high speed for 5 minutes. 4.Add polar activator. 5.Mix at high speed for 5 minutes.

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Zhejiang Huate Group

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