In the new March issue of FSM, it talks about using Future for not only a gloss coat....but it can be used for a matt, super matt, or semi-matt/gloss coat. What you need is some Future floor wax...or since you are in the Netherlands its called Pronto Wax for wood floors, or Parket Plus...its all the same name just marketed under different names in different countries.
Anwyay...you need this stuff...and Tamiya Flat Base. What the base is for is to add to a color, or other acrylic substance...to make it flat.
Here are the ratios they give for it:
Straight Future - Gloss coat
1 part flat base and 3 parts future - Dead Matt
1 part flat base and 10 parts future - Matt
1 part flat base and 15 parts future - Semi-Matt/Semi Gloss
Hope this helps.....I haven't tried it as of yet....but it makes sence...and is cheap...as a bottle of future is like $4 - $5 and a bottle of Tamiya Flat Base is like $3 max....would be enough to last for a long time.