BYK DISPERBYK 161 High molecular weight wetting and dispersing additive for solvent-borne systems and pigment concentrates - 广州昊毅新材料科技股份有限公司

Wetting and dispersing agent

BYK DISPERBYK 161 High molecular weight wetting and dispersing additive for solvent-borne systems and pigment concentrates

                                                     

 

  chemical components    High molecular weight block copolymer solution containing pigment affinity groups

 

  Typical materialized data

solvent

Propylene Glycol Methyl Ether Acetate/Butyl Acetate 6/1

non-volatile matter

30%

Amine value

11mg KOH/g

 

  Recommended dosage  

Inorganic Pigments

10-15%

Titanium dioxide

5-6%

organic pigment

30-90%

carbon black

70-140%

 

  Incorporation method and processing instructions

For optimum performance, wetting and dispersing additives should be added to the millbase.

The resin and solvent should be pre-mixed, and then the additives are slowly added under stirring until uniformly dissolved. Pigments are added after the additives are put in. To remedy problematic paints in production, disperbyk-163, disperbyk-164 and disperbyk-167 are most suitable for post addition and slow addition under high shear. Additional byk-331 should be added in the baking system to improve leveling and prevent Bernard vortex.

Application field

Recommended: Industrial coatings, automotive refinish coatings, automotive production line paints (oem), coil coatings,

Applicable: wood coatings, architectural coatings, pigment concentrates

  Function  

Byk161 high molecular weight additives deflocculate pigments through steric hindrance. They impart the same charge to different pigments, thus preventing possible co-flocculation of differently charged pigments. Due to the small size of the deflocculated pigment particles, high gloss and enhanced color strength can be achieved. In addition, the transparency of transparent pigments and the hiding power of opaque pigments are increased. These products reduce viscosity, thereby improving leveling, and can increase pigment content.

Features and Benefits

In terms of product use, disperbyk-161 is an optimized product of disperbyk-160 for easy handling, and its molecular weight distribution, polarity and effectiveness are very similar to disperbyk-160.

storage and transportation

Delamination and turbidity may occur at temperatures below 0°C,

Heat to 20°C and mix well before use.

Packing 25kg/drum

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