BYK – New additives showcased at the European Coatings Show

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BYK – New additives showcased at the European Coatings Show

Monday, 15 May, 2017

On the occasion of the recent European Coatings Show, BYK-Chemie showcased a range of new additives illustrating the characteristics of the latest developments: technology and environmental friendliness, in order to address current challenges facing the paints industry.

We wish to highlight the following products::

  • The defoamers BYK-1788 and BYK-1799 which, owing to a fine polarity adjustment, offer excellent defoaming properties  with an less crater and haze tendency in the critical 100% solid UV-curing systems.


 

  • In BYK-1781 the same process as with the previous two products has been applied. To deal with microfoam in aqueous systems with airless application, silicones with a low molecular weight should be used and, in such cases, the compatibility adjustment is far more problematical. BYK-1781 is a product whose compatibility makes it easier to handle and does not cause either craters nor haze in coating applications. The difficulty has been combining the aforementioned features with highly effective defoamer properties exceeding its forerunner BYK-1780.
     
  • The associative rheology additives Optiflo-H 7625 VF and Optiflo T1010. The former has a notable pseudoplastic behaviour and the latter a Newtonian-like behaviour.
    Both products stand out due to being VOC-, formalin- and tin-free. These are compounds used to synthesise these kinds of additives which are being taken out of our formulations on health and environmental grounds.
     
  • The surface additive BYK-3760 is a highly effective surfactant silicone (the standard dosage in paints is below 0.1%) and, moreover, one that is characterised by the fact that it is introduced into a thin-film evaporator during production to remove the notoriously problematic volatile cyclic silicones.
     
  • Disperbyk-2080 and Disperbyk-2081 are two dispersing additives for aqueous systems designed to address one of the biggest current problems with these types of coatings: sensitivity to water. In part, traditional dispersing additives are the reason why these systems have low water resistance, both in direct metal gloss paint where we observe a loss of anti-corrosion resistance and in decorative or furniture coatings where stain resistance is impaired. Disperbyk-2080 and Disperbyk-2081 have been designed to help eradicate the sensitivity of these coatings to water.


 

  • Disperbyk-2158 and Disperbyk-2159. In 100% or high solid systems, the effectiveness of matting agents is substantially reduced when coatings with an extremely low gloss need to be formulated. Consequently, very high quantities of these additives need to be added. This high percentage of matting agent increases product viscosity and hinders application. To address these difficulties, Disperbyk-2158 and Disperbyk-2159 have been developed. These additives strongly reduce viscosity and, at the same time, control matting agent sediment thanks to the incorporation of a second type of polar group. The two additives incorporate the same active substance: in Disperbyk-2158 it is dissolved in DPGDA for use in UV-curing systems; in Disperbyk-2159 it is dissolved in MPA for use in solvent-borne systems.
     
  • Disperbyk-2062. A year ago we introduced a dispersing additive, Disperbyk-2061, developed using a completely new chemical in order to produce universal concentrates (aqueous concentrates to tint aqueous and solvent-borne architectural paints). The aforesaid agent is an excellent dispersing additive for organic pigments; use of a more traditional chemical is advised for inorganic pigments. Now, thanks to Disperbyk-2062 this new, efficient chemical may be used for inorganic pigments, thereby increasing the compatibility of these inorganic pigment concentrates.



 

  • BYK-3565 is a macromer-modified polyacrylate which offers the levelling properties of polyacrylates. Its surface energy is enhanced thanks to silicone and polyethers side-chains. Its compatibility can be controlled whilst increasing the surface energy of dry paint. BYK-3565 provides good levelling and recoatability, even in aqueous coating systems.
     
  • Certatix 8561, Ceratix 8563 and Ceratix 8566. Nowadays, environmental aspects are as, if not more, important as simply technical ones. Ceratix 8561, Ceratix 8563 and Ceratix 8566 are alternatives to the widely used Ceratix 8461, Ceratix 8463 and Ceratix 8466 without the N-Methyl-2-pyrrolidone contained in these products (< 0.5%). Consequently, these new additives can be used to formulate NMP-free paints.

 

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