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The rubber sealing strip
       • Large rubber bumper
       • EPDM rubber seal
       • EPDM foam seal
       • EPDM composite seal
       • Dense silicone seal
       • Silicone foam seal
       • PVC rubber seal
       • PVC composite steel trim
       • TPE elastomer seal
       • Fire retardant seals
       • Fire expansion seal
       • Nitrile rubber sealing strip
       • Chloroprene rubber seal
Doors and Windows sealed
       • Aluminum doors and windows sealed
       • Building curtain wall sealing strip
       • Wooden door seal slot
       • Doors of self-adhesive sealed
       • Automatic revolving door seal
       • Frameless glass door seal
       • Cold storage warehouse door seal
       • Fire doors and windows seal
       • Pu foam-coated sealing strip
Series of car seal
       • U-car trim
       • Door three composite seal
       • Container Seal
       • Windshield Seal
       • Sponge soundproof seal
       • Retaining the door seal
       • Glass flocking seal
       • Molded seals
       • Bus seal
       • Electric car seal
       • High Speed Rail train sealing strip
       • Wiper seal
Bin cover seal
       • Cabinet seal
       • Cabinet waterproof seal
       • Door seals
       • Oven seal
       • Steam cabinet seal
       • Electric Seal
       • Refrigerator seal
       • Lip seal
Composite seal
       • Hard and soft compound rubber seal
       • Three composite rubber sealing strip
       • Silica composite seal
       • PVC composite trim strip
       • TPE + PP soft and hard composite seal
       • PVC color composite seal
       • PVC light word sidebar
       • U-edging seal
Insulation sealing
       • Retardant sealing strip
       • Insulation Seal
       • Conductive sealing strip
Hard and soft composite seal
       • EPDM rubber tube
       • Silicone tube
       • Rubber Seals
       • Highways, bridges the gap seal
       • Building deformation joint sealing strip
       • Rubber conveyor belt
       • Rubber, EVA, PE foam board
 

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The difference between good and bad quality seal

Plastic seal is steel, aluminum, plastic doors and windows generally used to install the seal between the glass and the door frame seal fan

Plastic seal is steel, aluminum, plastic doors and windows generally used to install the seal between the glass and the door frames fan sealing material. Rubber seals are usually made of modified PVC material strip. 

Seal performance will largely affect the firm level doors and windows airtight, watertight, heat loss and other key performance indicators, and the doors and windows doors and windows. Therefore, the state has long established GB12002-89 national standard "plastic doors and windows with seals." To regulate the production and inspection seal.

However, the doors and windows on the building materials market, with rubber seal of quality and the price is very confusing. Expensive fifteen thousand, six thousand dollars a ton, cheap only six thousand dollars a ton. Nearly million price difference, quality vary widely, as people know what to do. Many manufacturers are called seal products are executed GB12002-89 national standards and testing authority can issue a qualified test report. According to our testing, Ltd. Xingtai CITIC seal of well-known manufacturers in the industry is currently using the rubber seal, and seal the samples were sent to the manufacturers, the hot air aging properties of the project results were heated weightlessness indicators surprise: more than 10 samples, no one is qualified.

According to GB12002-89 standards, seal hot air heat aging performance of the project in weightlessness indicators should 3%. The heating of the actual test results of the weight loss: 7.17% - 22.54%. Far beyond the scope of national standards.

Such a seal, in the formula by adding a large number of low-boiling plasticizer or plasticizer substitutes. Such a seal in the new time, flexibility, softness are still good. However, over time, when more volatile plasticizers, sealing strips flexibility, softness variation, ranging from the impact sealing doors and windows, while also affect the degree of solid doors and assembled.

Further, the plasticizer content is too high sealing strip, during use, but also to contact with PVC profiles plasticizer migration phenomenon. Resulting in partial coloring box fan profiles and swelling. Namely: the profile sealing surface in contact with the seal, appears a different width, do not rub, wash off the dark spots, and white in stark contrast to the profile body, extremely aesthetic impact. In the color of the track due to the immigration of the plasticizer, and local projections. (Sliding doors and windows and seal profiles due to the contact portion is not exposed, profiles of local coloring and swelling phenomenon not observed under normal circumstances. The door windows in the open state, seal profiles corresponding to the disengagement, profiles of local coloring and swelling phenomenon exposed.) Although, profiles of local coloring and swelling phenomenon, yet does not cause serious consequences frame profiles and fan failure, but it has seriously affected the plastic doors and windows look beautiful. After all, this is a defect, after causing extreme bad impact on the image of plastic doors and windows.

Plastic doors and windows in order to maintain the image of health care in this emerging industry thrive, seal manufacturers should produce in fact truly qualified seal, plastic doors and windows assembly plant should be chosen truly qualified, high-quality seal. Ensure the quality of plastic doors and windows.