As the labeling situation for N-ethylpyrrolidone (NEP) has changed, and as NEP is included as a solvent in BYK-E 410, BYK-E411 and BYK-E420, it is necessary to adapt the labeling for these BYK rheology additives by December 31, 2014. BYK has developed alternatives based on carriers which are not labeled as CMR, amide esters (ES) and amide ethers (ET).

 

Just like BYK-E410, BYK-E411 and BYK-E420, the new rheology additives cover the whole polarity range from high polarity to low polarity. They control the thixotropic flow control properties, have an outstanding shear-thinning effect, and show a time-dependent structure recovery. BYK-7410ET, BYK-7411ES and BYK-7420ES improve anti-sagging properties and storage stability. Furthermore the rheology additives

show a perfect substrate wetting and leveling.