The above three are all fluorine or fluorocarbon polymers. They have stronger chemical bonding and structural stability than any polymer. They will not react to the pollution factors in the atmosphere, even if it is very corrosive. The solvent will not cause damage, so it can always keep the surface intact and beautiful.
Both PVF and PVDF are different in film type. The main difference between the two lies in the chemical molecular structure. The molecular structure and arrangement of PVF film in the manufacturing process are better than PVDF, which greatly strengthens its physical strength, so it is more than PVDF. It has better ductility (up to 100%), wear resistance, processability, flat and smooth surface, so after various processing procedures, such as cutting, stamping, rolling, drilling... etc., PVF is better than PVDF It can maintain its excellent performance without any cracks or other damage that may affect the service life. In addition, the smooth PVF film does not contain any environment that supports the growth of microorganisms or molds, and does not allow bacteria to penetrate; it can meet the requirements if it is cleaned with general water; if it has been artificially spilled or contacted with ballpoint pen oil, spray paint or grease Such pollution can be cleaned with any "cleaner" or even "strong solvent" such as acetone, without worrying about damaging the surface of the PVF film.
The difference between PVF (film type) and PVD (paint type), if you take the product of the rolling door as an example, the rolling door pieces are processed by steel coils, and the process must undergo continuous rolling. Therefore, the material must have Excellent ductility and bendability, and PVF material has this perfect performance. First, the PVF film is 100% attached to the steel coil by a special method, and then the roll is formed into a rolling door. In this way, the door is rolled. Each groove of the film can be completely protected by 100% laminated PVF material to ensure the integrity and durability of its appearance; in contrast, PVD is a coating type product that must be used in the roll door film After molding, it is attached to the door by spraying, so it is easy to cause pores, cracks, etc. during the spraying process, and the dead corners in the groove of the rolling door cannot be sprayed completely, which greatly reduces the durability of the product, etc. Wait. PVF fluororesin film is the first choice for buildings or any materials that can be attached to maintain their beauty and longevity.
Generally, the commonly used F60A or F60B fire protection rating of fire protection equipment is actually the verification registration certificate of the construction fire door of the Ministry of Economic Affairs, and the authorization mark of the fire performance rating description. There is no F60A or F60B is a word sentence, but because it has the same fire resistance performance requirements, and the code description of F60A or F60B is more concise, and it has the high usability of fire-resistant panel doors, it has gradually become the fire protection of all "fire-resistant equipment (including fire-resistant rolling doors)" The general identification code of the grade.
The general identification code of this fire class is explained as follows:
F means this product is a "fireproof" product.
60 (number) represents the "fire protection aging" or "heat resistance time" of this product, (unit: minute)
A represents the fireproof performance of this fireproof product "with fireproof aging and heat resistance aging".
B represents the fireproof performance of this fireproof product "with fireproof aging but not heat-resistant aging".
E.g:
F60A-means "with 60 minutes (1 hour) fire aging and 60 minutes (1 hour) heat resistance aging" fire performance.
F60B-means "with 60 minutes (1 hour) fire aging but no heat resistance" fire performance.
F120B-means "with 120 minutes (2 hours) fire aging but no heat resistance" fire resistance.