The main features

1. The price of modified PVC tape is relatively low. Due to different quality, the price is generally between 6000 yuan and 15000 yuan/ton. Sealing strip low-end products due to the use of waste, replacement plasticizer and high filling amount, to make the rubber strip poor elasticity, easy to hard, have a pungent taste, easy to transfer the frame material yellow, short service life. A few doors and Windows enterprises that are in low level price competition are still in use. Medium and high-end PVC rubber strips can meet the standard indexes and have a relatively long service life. As PVC products contain halogen and heavy metals in stabilizers, they are not conducive to environmental protection.

2. Thermoplastic epdm sealing strip

The sealing strip is a new material developed on the basis of imported technology from abroad and domestic independent research and development in recent years. It is mainly used for sealing strips of car doors and Windows, and has been used for sealing strips of building doors and Windows in recent years. Its outstanding advantages are:

Performance and service life and vulcanized epdm rubber sealing strip is equivalent.

(2) processing energy consumption relative to the vulcanized ethylene-propylene rubber strip is low (and PVC equivalent).

(3) do not contain halogen and lead and other heavy metals, plus a few years after the recycling, in line with the requirements of green building materials.

(4) small proportion (only 0.9-0.95) high window rate. It seems that the purchase unit price is high and the actual use cost is low.

Product features

1) light bulk density, high tensile strength, no water absorption (instead of the traditional three oil four felt, asphalt wood fir board and other materials). The product environmental protection, the construction is simple, the seepage prevention, the leakage prevention, stops the water the effect to be good.

2) corrosion resistance, ageing resistance, resistance to high and low temperature 80 ℃ ~ + 45 ℃ not flowing, not deformation, not brittle, long service life.

3) with independent opening bubble structure, the appearance of the special type joint plate is honeycomb holes evenly distributed, no need to beat can be closely bonded with cement/sealant to be an integral whole, to adapt to the change of natural expansion and contraction, enhance the effect of joint seal expansion and water stop.

3. Vulcanized epdm sealing strip

In the aspect of sealing elasticity and durability than PVC tape has a great strengthening, but because of the need for microwave vulcanization line finalize the design, processing energy consumption is high, usually more than 20 times of PVC processing, the product can not be reused, not environmental protection, is not the product of national advocacy. Additional, proportion of material of this kind of product (1.4 above) with PVC kind are equivalent (proportion of low end vulcanized 3 yuan of epdm tape is bigger) window rate and PVC tape are about the same, use cost is opposite on the high side, door window enterprise is accepted hard.