Polyurethane water swelling rubber


Hello everyone, today, Hengshui Yifeng Technology Co., Ltd. Xiaobian told friends about water swelling and water-stopping glue. This water-swellable water-stopping glue is a one-component type, and its appearance is black paste, so it is usually It is called water swelling and water-stopping paste. The outer packaging of the water-swellable water-stopping glue is packed in silver aluminum foil paper. The volume is 600ml, which is 0.75kg (1.5kg). There are 20 pieces in each box, and there are 4 mouths for glue in the box.

Let's talk about what this water-swellable water-stop glue is. Water-swellable water-stopping glue has rubber elastic water stop and double water stop mechanism of self-volume expansion and sealing after water contact. The water pressure resistance ≥1.5Mpa has strong durability and low quality change rate: PJ water-swellable sealant contains special The urethane linkage chain of the grafting technique does not cause the loss of the expansion element during long-term use, and the theoretical lifetime is 100 years at a temperature of 20 °C.

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There are two types of polyurethane water-swellable water-stopping glue: PJ200 and PJ400.

Below we distinguish between the performance standards of these two types of water-stop glue models:

Performance standard of PJ200 water-swellable water-stopping glue: 7d tensile bond strength ≥0.4Mpa, volume expansion ratio ≥220%, long-term immersion volume expansion rate retention rate (28 days) ≥90%, water pressure resistance 1.5Mpa.

Performance standard of PJ400 water-swellable water-stopping glue: 7d tensile bond strength ≥0.2Mpa, volume expansion ratio ≥4000%, long-term immersion volume expansion ratio retention rate (28 days) ≥90%, water pressure resistance 2.5Mpa. The polyurethane water-swellable water-stopping glue produced by Hengshui Yifeng Technology Co., Ltd. can be extruded or smeared. It has sag resistance, vertical seams and top seams are not flowing. The cured rubber layer is rubbery and elastic. Adhesive to metal, rubber, wood, cement, ceramics, glass, etc. Sealant is a material used to fill voids (holes, joints, joints, etc.) and has two functions of bonding and sealing.

The water-swellable water-stopping glue is simple in construction and easy to operate. But we must master the good construction methods to ensure the quality of the construction.

This information content is summarized by Hengshui Yifeng company's many years of construction experience. I hope to help you. If you want to know more about our company, please contact: 13785855258. Hotline 0318-2345631

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Http://news.chinawj.com.cn Polyurethane water swelling rubber



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