flexi188flexi 188 Longer models should be used Flexi188 Bergabunglah dan Mainkan MASSEY FERGUSON 148 168 188 SERIES PVC PLASTIC FLEXI B ROOF COVERK-FLEX 188 is a hhly reactive, aliphatic polyester diol which is recommended for aminoplast or isocyanate crosslinked coatings, inks, sealants, elastomers, and adhesives.