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In the field of aqueous-based polyurethanes, [POLYURETHANE DISPERSIONS], that complete the chain of Manufacturing the PUDs, from the designing and synthesis of the backbone polyol, to the finished product customized for end use application. We are focused on serving our customers, with a close partnership and delivering world class products. like: Aliphatic Single Pack Self Cross Linking Water Borne Polyurethane Dispersion. This water based solution coatings comprise specialty products ranging from soft to hard, from anionic to cationic, from normal to highly resistant to hydrolysis, from soft to scratch-resistant, from hydrophobic to hydrophilic, from non-swelling to breathable PU polyurethane dispersion a tough balancing act today for coating formulators and end users. Increasingly stringent environmental regulations call for low-VOC products, but one still has to meet the technical requirements for the coating for a variety of substrates. Polyurethane dispersions water borne based ...

Fast-dry waterproof nano coating PF-302 is solvent based fast-dry waterproof nano coating for concrete, rooftop, brick, stone and other building products etc. Type -Building waterproof nano coating Nano Super Hydrophobic Coating for concrete Super hydrophobic coating Good permeability and transparent coating Excellent adhesion and good abrasion resistant Applied to concrete, rooftop, brick, stone and other building products etc. Key features -Slight odor -Easy to use -Water and oil-repellent -Excellent hydrophobic property -Dry very fast at ambient temperature -Applied to concrete, rooftop, brick, stone and other building products etc. Typical properties Appearance： Colorless clear liquid Water contact angle (º)： 150 pH： 6.0-7.0 Density (g/cm3 at 20℃)： 0.7±0.03 Solvent： Petroleum ether Duration (years)： 3~5  Cover area (m2/L)： 8-12 Surface dry time (min)： 10-30 Application -Concrete, rooftop, brick, stone and other building products etc. Surface Preparation: Substrate surface must...

The PP microporous pleated filter element adopts ultra-fine polypropylene fiber membrane. The ultra-fine fiber has a stable filtration accuracy and can effectively intercept small particles and colloidal debris. The filtration efficiency is as high as 99.8%; the multi-layer structure design provides a high dirt holding space and The filter area has the characteristics of large dirt holding capacity and long use time. Filter material: ultra-fine polypropylene fiber membrane Support / diversion layer: polypropylene Center rod/housing/end cap: polypropylene Outer diameter: φ69mm Inner diameter: φ28mm Length: 5"~40" Accuracy: 0.1~50um End cap: double opening, 2-222 flat tail, 2-222 rocket tail, 2-226 flat tail, 2-226 rocket tail 2. Operating parameters: PH value: 1~13 Maximum working temperature: 80℃ Maximum working pressure difference: 0.4Mpa/20℃ 0.2Mpa/80℃ The pp melt blown filter element is made of polypropylene as the raw material, which is drawn by heating and melting spinni...

When using the water softening water equipment , the staff should also master the use methods and precautions of the water softening equipment. Avoid large and small failures in the later operation of the equipment, and mastering the use method will also create more economic benefits for users.   When using the softening water equipment, the staff should also master the use methods and precautions of the water softening equipment. Avoid large and small failures in the later operation of the equipment, and mastering the use method will also create more economic benefits for users. The editor of this article will talk about some precautions that must be followed when using water softening equipment.      Automatic water softening device is a kind of equipment with the function of softening the hardness of water. Since the hardness of water is mainly formed by calcium and magnesium, automatic water softening equipment manufacturers use ion exchange resin to remove...

These materials are generally used for mechanical seals Mechanical seal is a shaft sealing device that relies on one or several pairs of end faces that slide relative to the shaft perpendicular to the shaft under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism to keep it fit and to be equipped with an auxiliary seal to achieve leakage prevention. Commonly used materials for mechanical seals : 1. Sea water; normal temperature; (dynamic) tungsten carbide, 1CR13 surfacing cobalt chromium tungsten, cast iron; (static) resin graphite, tungsten carbide, cermet; superheated water 100 degrees; (dynamic) tungsten carbide, 1CR13 cobalt surfacing Chromium tungsten, cast iron; (static) impregnated resin graphite, tungsten carbide, cermet. Purified water; normal temperature; (dynamic) 9CR18, 1CR13 surfacing cobalt chromium tungsten, cast iron; (static) impregnated resin graphite, bronze, phenolic plastic, river water (containing sediment); normal...

What factors will affect the service life of mechanical seals ? The main corrosive substance in the desulfurization circulating pump is chloride ions. Due to the strong reducibility of chloride ions, it has corrosive effect on the medium of the mechanical seal material, causing surface corrosion of the mechanical seal. The sealing material medium is limestone and gypsum slurry, the solid content (mass percentage) is about 35%; the temperature is controlled within 70℃; the pressure is less than 0.8MPA; the pH value is between 4-8; the chloride ion content is less than 0.04%. Among them, chloride ions can penetrate mechanical seals when they are severely corroded. What is more serious is that dissimilar metals work together in the medium, causing electrochemical corrosion. This leads to inadequate fixing of the ring. If the sealing surface is in friction for a long time, or the cooling water supply is quickly stopped, or impurities enter the sealing surface, it will initially cause smal...

What is cartridge seal ing? The cartridge mechanical seal is a completely enclosed sealing system with pre-assembled components. Usually, this seal type consists of glands, sleeves and other hardware that may be pre-assembled. For a more exhaustive list, please refer to the blog post about different mechanical seal types. Advantages of cartridge mechanical seal The main benefits of choosing a cassette seal for your pump seal system include: Easy installation (no expert required) Since the pre-installed seal has a fixed axial arrangement, it has higher functional safety. Eliminate measurement errors. Eliminates the possibility of axial misalignment and the resulting sealing performance problems Prevent dust from entering or damaging the sealing surface Reduce installation costs by reducing installation time = reduce downtime during maintenance Reduce the potential for pump disassembly to replace seals The cartridge unit is easy to repair Protect customer shaft/sleeve Due to the interna...