Basics & Development of PVC entry Door

What’s PVC Front Door?

The PVC door is made of based on the PVC (UPVC) resin as the main raw material, then plus a certain percentage of stabilizers, colorants, fillers, UV absorbers and so on, after the extrusion process into profiles, and then by cutting, welding or screwing into fan-made door frames, fitted with rubber seals, tops, hardwares, etc, and in order to enhance the rigid of the profile, the profile cavity that more than a certain length must have to fill with steel liner (ribs), this doors are used as the first door of the house are called the pvc front doors.

Origin of PVC Exterior Doors

The PVC door is first developed by the Federal Republic of Germany at the end of the 1950s, and it began to production in 1959. The initial PVC doors are single-cavity structure, which is relatively simple, rough, along with the worldwide energy crisis of 1972, the better energy-saving effect of PVC doors in the early seventies replace the traditional solid wood exterior doors and are widely applied. And at the same time, it also contributed to the improvement of the profile production technology, performance is improving daily, from single-cavity profiles to the three-chamber, four-chamber profile has also led to the door development of Europe and even Asia. According to incomplete statistics, the use of composite doors in Germany is accounted for 52% of the doors, and 48% in Austria, Switzerland, England, France, Italy and other developed countries also have 10-20% market share; PVC doors in the United States started in the late 1970s, the annual usage growth rate is more than 15%.

Composite Doors but Wood Entry Doors Become Popular

China's composite doors started in the late 1970s, however, the real composite doors production is introduced from1983, the technology was not very advanced at that time, adopted single cavity or cavity profiles, along with the upturn of 1990s in entry door industry, domestic sprang a number of extrusion equipment, mold , profiles, assembly equipment manufacturers for composite entry door, and just at that time, the composite gradually developed and being popular in the market, the traditional wood front door was gradually threw out of the market. In the 1996, as China has strongly advocated and the birth of the newly established manufacturers to introduce advanced equipments, greatly promoted the development of the now national profile extrusion production line industry, there are over 2000 profiles plant and more than 400 profile plants, more than 3,000 assembly plants, in the year 1999, the profiles production capacity was 800,000 tons, the annual assembly of doors capacity is 60 million square meters, has now become one of the few rapid development industries.

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