Second issue of existing UHMWPE ski base types is the ski base memory of gliding waxes.
How it works?
Only sintered ski base types have sufficiently long chains to create free space to take wax molecules on the very top surface and inside the bulk material.
On the very top surface we call the free spaces “flokati carpet” which are fibres or hairs several hundred nanometers long which are covering the entire ski base surface. Between these fibres is enough space for wax molecules get in and get stuck here. Most wax molecules are allocated here.
In bulk similar free cavities do exist because the bulk material consists of intertwined molecular chains. It is estimated that wax can penetrate the ski base up to 1 micrometer, thus 1000 nanometers, the deeper you go, the less wax molecules you will - however - find.
Both free spaces in flokati carpet on the very top surface and free cavities inside the bulk material are ca. tens of nanometers large which means there is enough space for wax molecules on the one side but there are not accessible by any mechanical cleaning process on the other side.
Wax cleaners can reach these free spaces and free cavities but to remove all wax which has entered these nano-spaces in liquid state and solidified here is hardly possible.
These wax residues which cannot be removed any more after they have entered the free nano-spaces in both flokati carpet on the very top surface and in the bulk material we call ski base memory.