Door and window rubber steal strip is an important part of door and window accessories hardware that cannot be ignored. The basis for judging door and window rubber steal strip lies in its sealing effect. A door and window rubber steal strip with good quality will not easily age and fall off, and can play a very good sealing effect, as well as moisture-proof, noise-proof, wind-proof and heat-proof functions.
Some door and window rubber steal strip on the market are usually made of PVC, which is a material that has been eliminated, because this material is not environmentally friendly and easy to age. Now the popular is EPDM rubber, which needs to be added with plasticizer (including dioctyl phosphate and dibutyl phosphate, but the market price is relatively high)-whether it is good or bad is directly related to the quality of door and window rubber steal strip, it is because of this that many manufacturers use cheap waste oil (waste oil, oil bottom left by oil refineries, etc.) to replace the plasticizer inside, which leaves great hidden dangers for users.
Pay attention to the following aspects when purchasing door and window rubber steal strip.
1. Use your nose to smell whether there is peculiar smell. The normal PVC material has a little mellow smell, which is very small and hardly smelled.
2. In summer, whether the contact surface between door and window rubber steal strip and the profile is stained and discolored, yellow and oily.
3. Look at the proportion. The feeling of the same amount of door and window rubber steal strip high quality is lighter, and the proportion of inferior products is often smaller, otherwise it is heavier. Regular manufacturers generally use light calcium carbonate with a small proportion as filler, while some manufacturers use talc powder and coarse Whiting to increase the proportion of products. Because sales are priced by weight.
Harm of inferior door and window rubber steal strip
although the proportion of door and window rubber steal strip is small, its effect cannot be underestimated. Inferior door and window rubber steal strip is not only environmentally friendly, but the peculiar smell contained in it will cause harm to your body and pollute the air.
1. It is not environmentally friendly, has peculiar smell and pollutes the air.
2. Reduce the tightness. Poor quality sealant strip contains inferior plasticizer or substitute, which is easy to age and Harden and shrink in winter. There is a gap between the glass and the profile, causing water leakage and dust leakage. Many users often find that the red liquid flows out of the layering part of the plastic window in rainy season, which is caused by window glass corrosion after water enters between the steel lining and the sealing strip, which not only greatly reduces the appearance of the plastic window, it also greatly affects the service life of doors and windows.
