13.02.2018 - BYK-325 N
BYK-325 N – γ-Butyrolactone-free Surface Additive for Solvent-borne Coatings
The new BYK-325 N is equal in performance to well-known BYK-325 but avoids any exports restrictions because it is free from γ-butyrolactone.
13.02.2018 - BYK-1166
BYK-1166 – Wetting additive for PVC plastisols to reduce the viscosity in the low shear range
Currently not available in North America
The new BYK-1166 is the latest development within the BYK-1160 series. All of these products work very effectively to reduce the low shear viscosity of PVC plastisols based on pseudo-plastic PVC grades. Occasionally, in PVC plastisols containing azodicarbonamide (AZO) as a blowing agent, the additives of the BYK-1160 family can cause yellowing in the final product. This is a limiting factor – especially in the wallcovering industry. BYK has therefore developed BYK-1166 which has been evaluated within the European PVC foam resins most widely used in the industry. The latest member of the BYK-1160 family has low volatility and can be used in a wide range of PVC applications (except low fogging for automotive). It is especially recommended for chemically foamed PVC plastisols where white index and surface properties are of importance. BYK-1166 shows the best heat stability of all products within the BYK-1160 family.
06.02.2018 - BYK-C 8013
BYK-C 8013 – Solvent-free, polymeric coupling agent to increase the mechanical strength of carbon fiber-reinforced, radical-curing systems
Currently not available in North America
BYK-C 8013 is the world’s first coupling agent for carbon fibers. It is used in vinyl ester and unsaturated polyester resins that will be subsequently processed with carbon fibers into composite components. Strengths transverse to the fiber are considerably increased and therefore enable a greater design freedom. The improved fiber-matrix bonding in BYK-C 8013 increases both the transverse tensile strength as well as the flexural strength of the composite. The chemical composition of the additive enables bonding to the fibers and simultaneously to the resin matrix. This unique characteristic allows changes in the component design and the production of more resilient parts. BYK-C 8013 shows a considerable increase in mechanical strengths up to 70% particularly in hot curing processes such as SMC/BMC, Pultrusion, Prepreg or RTM. The reactive additive can be added to the sizing during the fiber production or to the resin shortly before processing.
As a subsequent so-called “second sizing”, BYK-C 8013 can be applied onto the fiber, for example by spraying, without having to remove the first sizing beforehand. BYK-C 8013 is recommended for all carbon fiber types.
09.01.2018 - DISPERBYK-2157
DISPERBYK-2157 – VOC- and solvent-free wetting and dispersing additive for non-polar systems
DISPERBYK-2157 is a VOC- and solvent-free wetting and dispersing additive for non-polar solvent-borne and solvent-free inkjet inks, printing inks, protective and architectural coatings as well as PVC plastisols. The additive is excellent compatible with solvents, like paraffins, isoparaffins, vegetable oils, mineral oils or plasticizers. DISPERBYK-2157 is recommended for all kinds of pigments and greatly improves optical properties such a color strength, transparency and gloss. In inks and coatings applications DISPERBYK-2157 provides a strong reduction of the mill base viscosity and a good stability. In PVC applications the additive shows a strong decrease of batch and final plastisol viscosity and moreover offers an excellent heat stability.
19.12.2017 - BYK-1797
BYK-1797 – Silicone-containing defoamer for 100 % UV printing inks and OPV. Especially recommended for screen printing inks
Due to their rheological profile, and since they are particularly prone to foaming during application, screen printing inks are especially challenging for defoamers. BYK-1797 offers two advantages. It has strong defoaming properties even at extremely low dosages, but with a little more, leveling can also be greatly improved. Newtonian radiation-curable systems such as UV flexographic inks or substrate printing inks often require additives both to eliminate foam, which may be carried through an enclosed doctor blade and to provide substrate wetting.
19.12.2017 - DISPERBYK-2023
DISPERBYK-2023 – Solvent-borne wetting and dispersing additive for liquid printing inks based on TPU, TPA, NC, and vinyl copolymers
Modern solvent-borne printing inks are becoming increasingly polar. That is why it is particularly challenging to find suitable, compatible dispersing additives for NC-based printing inks. At the same time, PU and vinyl systems result in increased polarity as well as a faster printing process. BYK has responded to market demand and developed DISPERBYK-2023. This additive offers optimal dispersion and stabilization of organic pigments, as well as outstanding compatibility across a wide polarity range. DISPERBYK-2023 provides the formulation with virtually Newtonian flow behavior and itself contains a highly volatile solvent. The outstanding properties of DISPERBYK-2023 result in high application speeds with high levels of printing quality, combined with outstanding process reliability.