Faq
What is SILEX®?
The material class of SIALOXOL polysilicic acids developed by our company was named SILEX®. SILEX® is the Latin term commonly used for silicic acid (SiO2 · n H2O) derived compounds.
Are the fibers classified or harmless to health?
SILEX® products do not contain any WHO fibers, are non-respirable and thus, ecological and absolutely harmless to health. They are neither classified acc. to EU standards 67/548/EWG and 97/69/EC nor acc. to the German Technical Rules 905 and 619.
What is Shot?
Shot is a non-fibrous particle which can result from production processes, e.g. of ceramic fibers. BELCOTEX® fibers are continuously drawn from a SiO2 rich melt via melt spinning and therefore do not contain any shot (fiber index: 100).
Which is the application temperature?
We recommend a maximum temperature for continuous utilisation of 1050°C for BELCOTEX® 110 fibers, yarns and plied yarns as well as products thereof. BELCOTEX® 225 may be used continuously up to 1150°C. For short periods, higher application temperatures are possible. Both fiber products show a melting range > 1500°C.
What is the difference between BELCOTEX® 110 and BELCOTEX® 225?
BELCOTEX® 225 has a mean fiber diameter of 7.5 µm, the mean fiber diameter of BELCOTEX® 110 is 9µm. BELCOTEX® 225 offers a higher fineness related tensile strength. BELCOTEX® 225 was particularly developed for fiber reinforcement with improved mechanical fiber characteristics and lower thermal conductivity.
What is SIALOXOL?
SIALOXOL is the name of the chemical compound of BELCOTEX® fibers having following formula: AlO1.5@18[(SiO2)0.6 (SiO1.5OH)0.4].
