CF Plastic Profiles offers a wide range of PVC-profiles. PVC is one of the first and most versatile plastics that is still in high demand. The reason PVC is still popular stems from its ability to be modified for a specific use. PVC allows for straight and rugged applications like, for instance, in window sills. Yet, PVC also allows use for elastic products like, e.g., seals. The adaptability of PVC makes that new applications are presently still found.
Hard PVC can be obtained in the following qualities:
Hard impact-resistant PVC profiles feature high ductility and scratch resistance. These qualities make it extremely suited for applications in construction. Special additives can make PVC retain its qualities even in low temperatures.
Hard PVC profiles are abundantly used in:
Hard-PVC does not contain volatile constituents or oxidants. PVC is resistant to the most commonly used chemicals. The maximum temperature in which PVC can be used is around 70⁰ C (158⁰ F). in general, Hard PVC profiles may only be used under no-load circumstances. When installed under too high pressure or tensile load, PVC will eventually display crawl-signs or permanent deformation. PVC contains plenty of residual stress to assure lasting elasticity.
Hard-PVC is colored through and through, making painting or lacquering unnecessary. PVC can be painted over in case a different color is required later on. By adding the proper stabilizers and pigments, the Hard PVC profiles are colorfast and weatherproof. The years of experience with PVC window and door sills provide ample proof of this. Especially the light colors are very suitable for outdoor use. Due to the reflection of the sunlight, the PVC profiles attract less heat keeping the thermic expansion to a minimum.
Hard PVC belongs to the group of flame-resistant plastics, according to DIN 4102/B1 and B2. PVC owns this feature to its chemical structure. As this feature is the property of the material and not induced by additives, the flame-resistant property is a lasting one.
Transparent Hard-PVC is formed by a different structure than solid colored PVC. The maximum temperature for the use of transparent PVC rests at approximately 65⁰ C (149⁰ F). Transparent PVC is, in general, more elastic than the colored version. To prevent discoloration of transparent PVC, we advise the use of a UV-stabilizer.
Hard-PVC glass filled 12% is a compound material that, due to the addition of glass, obtains a more rigid structure while thermal expansion decreases compared to standard Hard PVC compounds. Profiles made from this compound are, on average, twice as rigid, while its thermal expansion is twice as low.
PVC retains high outdoor durability while it can be produced in a vast array of colors. However, like any other product, over time, the color of the PVC profile will deteriorate as the upper layer wears out into a chalk-layer. When this happens, the PVC profile can easily be painted over with conventional paint. Instead of re-painting, the PVC can also be treated with, for instance, a car wax. A car wax treatment should be repeated on a yearly or two-yearly interval.
PVC profiles are well suited to be welded. In general, welding can be performed with hot air, a heating unit, friction, or high-frequency pulsations. Whichever welding method is chosen, be alert not to overheat the PVC to avoid carbonization of the material, which deteriorates the quality.
Hard PVC is resistant to saline solutions, diluted (and some concentrated) acids, and alkalis, a-polar solvents, gasoline, mineral oils, grease, and alcohol. Yet, it is not resistant to polar solvents like esters, chlorinated hydrocarbons, ketones, aromatic hydrocarbons, benzene, oleum with Sulphur acid, and concentrated nitric acid. (see graph).
Hard PVC is well suited to bond with other thermoplastics. In this respect, consider co-, tri-, and quad extrusion. Besides the bonding with other hard PVC, like with a different color setting, Hard PVC can also be bonded with the soft PVC variant, thermoplastic rubber (TPR), Thermoplastic Polyurethane (TPU) and PMMA. It is also possible to fuse Hard PVC with ABS and ASA; this, however, depends on the specific formula of the Hard PVC.