Polypropylene is the most widely used material, it is economical and resistant to acids, its limited return memory means that in the long run it takes unwanted creases. It has good wear resistance, but limited resistance to high temperatures.
Nylon is a very good quality material, it is not very resistant to acids. It has an excellent return memory so the brushes will always be in excellent shape, it is resistant to wear and to temperatures.
Polyester is a high quality material, resistant to acids and has a good return memory. It is wear resistant and extremely resistant to high temperatures.
The so-called “abrasive” material includes those filaments for making brushes for surfaces, it is a material of excellent quality, but not very resistant to acids. It has an excellent return memory and naturally a high wear resistance. It defends itself very well against high temperatures. Its silicon carbide (sand) composition arranged on the surface of the filament is of different grain sizes. It is identified as sandpaper, the lower the number the more abrasive the wire is, vice versa, the higher the number the more it will have polishing functions.
The galvanized metal filaments have excellent resistance to wear and temperatures, are calamitable and have good resistance to oxidation.
The stainless steel filaments have a very high resistance to wear, to high temperatures and do not rust.
Brass filaments are the softest metal filaments used, for example, to remove welding residues from welding and cutting tools because they retain good resistance to high temperatures and resist oxidation.
The carbon filaments are extremely interesting, the filaments are soft and resistant, reach very thin diameters and have a very high conductive capacity to discharge electrostatic charges.
The filaments in Tampico material have a limited resistance to wear, but an excellent resistance to high temperatures.
Animal hair filaments resist wear and temperature very well. Its peculiarity is that it is not subject to the accumulation of electrostatic charges, this makes it particularly suitable for many uses where the electrostatic charge from dragging or rubbing causes problems for machinery or humans.