D2-class PVAc adhesives Kestokol 200 D2-class PVAc adhesives Kestokol 560 D2-class PVAc adhesives Kestokol K 33 D2-class PVAc adhesives Kestokol KL/S D2-class PVAc adhesives Kestokol LOT D2-class PVAc adhesives Kestokol S 90 P D2-class PVAc adhesives Kestokol TL D2-class PVAc adhesives