From the early 1980s, paper machines became considerably faster and wider, and soft rolls were introduced. The soft roll covers were easily damaged by both metal and composite blades and a new blade material had to be found. The result of that search was high density polyethylene. Poly blades are best used on soft covers, as these blades also have the disadvantages of aquaplaning on wire rolls and trapping of abrasive particles which scratch the covers of felt rolls.
Jaikay provides an ultra-high-molecular-weight polyethylene (UHMWPE) which has longer polymer strings than HDPE for extra durability. It is more stable than HDPE with a higher melting point. They are good blade for soft covers that are not too demanding. Additionally it features additional crosslinking alloyed with molybdenum disulphide which has long polymer strings, is dense and has high durability. The blade has more stable melting properties and will last at least twice as long as a regular polyethylene blade. It is a good option for soft press rolls, grooved or drilled rolls. 

From the early 1980s, paper machines became considerably faster and wider, and soft rolls were introduced. The soft roll covers were easily damaged by both metal and composite blades and a new blade material had to be found. The result of that search was high density polyethylene. Poly blades are best used on soft covers, as these blades also have the disadvantages of aquaplaning on wire rolls and trapping of abrasive particles which scratch the covers of felt rolls.
Jaikay provides an ultra-high-molecular-weight polyethylene (UHMWPE) which has longer polymer strings than HDPE for extra durability. It is more stable than HDPE with a higher melting point. They are good blade for soft covers that are not too demanding. Additionally it features additional crosslinking alloyed with molybdenum disulphide which has long polymer strings, is dense and has high durability. The blade has more stable melting properties and will last at least twice as long as a regular polyethylene blade. It is a good option for soft press rolls, grooved or drilled rolls.