When it comes to doctor blades, the durability of polyurethane is particularly necessary; indeed, it is significantly better compared to other elastomers.
Polyurethane will also not break – or damage the belt – as delicately as the greatly more expensive ceramic blade.
The only thing that must be taken into consideration is that polyurethane is not suitable for scraping residue that is hot (over 100°C) or chemically aggressive (especially acidic).
We manufacture cutting inserts suitable for most fasteners. When you compare the price-quality ratio of the cutting inserts, you will be pleasantly surprised. If you cannot find a suitable one, we will customise it for you!