This category of polyethylene wax is an important segment of the MARCUS product range. These are ultra-fine powders of which there are two grades (M 5005 & M 5010) which are based upon M 300. The average particle sizes are 5 & 10 microns respectively although the particle size spread is as shown:-
These micronised grades retain the hard and high melting point of M 300 and both of these parameters are key elements in ensuring their status as high performance additives. The most common use is as “stir-in” products at a recommended level of 1-3% to lacquers, varnishes and inks, both solvent and water based, to augment the quality in the following respects:-
- Abrasion and scratch resistance
- Rub resistance
- Antiblocking behaviour
- Reduction of COF