How to distinguish between true and false doors and windows sealed

With a variety of petrochemical products prices continue to rise, some irresponsible manufacturers began aspects of unfair competition from the raw material (the so-called shoddy, shoddy).
Actual key is sealed windows and doors, sealing quality seal plays an important role. The seal material used market generally for modifying PVC, soft PVC in a key role in its inside adding a plasticizer which is nothing more than the quality, the relatively stable plasticizers are dioctyl phthalate butter, two small fat. But now the market price is high, some unscrupulous traders are using some other cheap stuff instead of (waste oil, oil refineries remaining foundation, etc.) to consumers is a big risk.rail car seals

Its products symptoms:

1. Permeability surface precipitation phenomena occur, those fundamental and PVC waste oil is not compatible solution, seal surface is prone to grease the surface of the profile also infected with yellow marks. Do not even have a lot of environmental volatile substances, air pollution.

2. When the so-called volatile or plasticizer exudation after the seal will lose its original softness, becomes hard, and soon aging of contraction, so that a part of the closed doors there was a great gap becomes airtight poorly (leakage, leakage of dust) in particular, steel doors and windows will soon be inside the steel liner corrosion, there are many users often find inside from the window in the rainy season layering parts out a lot of red liquid dirty, leaking windows and doors that had lined long been corrosion, doors and windows of life will be greatly reduced.ss cable ties

In the production process, the sealing strip investment accounted for a small proportion, but its role has not be ignored.