Haotian Brand High Temperature ResistantSleeve Features and Applications

　1.Safe and environmentally friendly, protecting workers' health
　　Alkali-free fiberglass has high tensile strength, is not prone to folding or breaking, is resistant to vulcanization, is smoke-free, halogen-free, non-toxic, non-combustible in pure oxygen, and has good insulation properties. After curing with organic silicone, its safety and environmental protection features are further enhanced, effectively protecting workers' health and reducing the incidence of occupational diseases. Unlike asbestos products, which pose significant hazards to human health and the environment.
　2.Excellent high temperature resistance
　　The surface of the high-temperature sleeve contains both 'organic groups' and 'inorganic structures' in its organic silicon structure. This special composition and molecular structure allow it to combine the characteristics of organic materials with the functionality of inorganic materials. Compared with other polymer materials, its outstanding feature is high temperature resistance. With a main chain structure of silicon-oxygen (Si-O) bonds, the bond energy of C-C bonds is 82.6 kcal/mol, while the bond energy of Si-O bonds in organic silicon is 121 kcal/mol, resulting in high thermal stability. Under high temperatures (or radiation exposure), the chemical bonds of molecules do not break or decompose. Organic silicon is not only heat-resistant but also cold-resistant, allowing for use over a wide temperature range. Both its chemical properties and physical mechanical properties change very little with temperature. 
　3.Splash protection, multiple safeguards
　　In the smelting industry, the medium temperature inside electric furnaces is extremely high, making it easy to cause high-temperature splashes (the same applies to the welding industry). After cooling and solidifying, slag forms on the pipelines or cables, which can cause the rubber outer layer of the pipes or cables to harden and eventually become brittle and crack. This can damage unprotected equipment and cables. The high-temperature sleeve, coated with multiple layers of silicone, can achieve multiple safety protections. It can withstand temperatures as high as 1300 degrees Celsius, effectively blocking splashes of molten iron, molten copper, molten aluminum, and other high-temperature molten materials, preventing damage to surrounding cables and equipment.
　4.Thermal insulation, energy saving, radiation resistance
　　In high-temperature workshops, many pipes, valves, or equipment have very high internal temperatures. Without protective materials, there is a risk of personnel burns or heat loss. Haotian's high-temperature sleeve offers better thermal stability compared to other polymer materials, along with radiation resistance and thermal insulation. It prevents accidents, reduces energy consumption, and prevents heat from the medium in pipes from directly affecting the surrounding environment, thereby keeping workshop temperatures from rising excessively and saving cooling costs. 
　5.Moisture-proof, oil-proof, climate aging resistant, pollution resistant, prolonging equipment lifespan
　　The high-temperature sleeve has strong chemical stability and does not react with oil, water, acids, or bases in organic silicon, functioning normally up to 260 degrees Celsius, and can be used long-term without aging. Its lifespan in natural environments can reach several decades, greatly protecting the pipes, cables, and equipment in these settings, significantly extending their service life. 
　6.Ozone resistance, voltage resistance, arc resistance, corona resistance
　　Due to the surface coating of organic silicone, with a main chain of -Si-O-, it is not easily decomposed by ultraviolet light and ozone. The high-temperature sleeve exhibits excellent electrical insulation properties, with dielectric loss, voltage resistance, arc resistance, corona resistance, volume resistivity, and surface resistivity ranking among the best in insulating materials. Moreover, their electrical performance is minimally affected by temperature and frequency. Therefore, they are a stable electrical insulating material widely used in the electronics and electrical industries.
　7.Flame retardant, reducing fire incidence and spread rate
　　If the medium conveyed in the pipes is flammable or toxic, leaks can easily cause fires or casualties; cables also frequently burn due to localized high temperatures. The high-temperature sleeve is made from highly heat-resistant fiberglass, with surface silicone that includes appropriate flame retardants and other special materials, giving it excellent flame retardancy. Even in the event of a fire, it can prevent the spread of flames and protect internal piping intact for a longer period, providing ample time for rescuing important data and information.  7 Commonly Used Areas:

　　High-temperature areas and heating areas of industries such as steel, smelting, shipbuilding, and chemical, as well as cables, fluid pipelines, rolling mill cables, oil pipes, cutting edge cables, generator sets, electrical voltage equipment, large buildings, hydraulic systems, automotive wiring harnesses, and exhaust pipes.                                                                       8 Testing Items and Results

　　High Temperature Bend Test
　　After heating in a constant temperature oven at 260 degrees Celsius for 48 hours, there is no aging cracking or peeling of the coating observed on the surface.
　　Low Temperature Bend Test
　　After heating in a constant temperature oven at -70 degrees Celsius for 1 hour, there is no cracking or peeling of the coating observed on the surface.
　　Coating Test
　　After continuous use testing in a constant temperature oven, there is no surface shedding or dissolution observed.
　　Combustion Test
　　Flame-retardant self-extinguishing with no spontaneous combustion (complies with UL 'VW-1' and CSA 'HFS' testing)
　　Temperature Resistance Test 
　　(2000hr) 260 degrees Celsius heating test normal with no abnormal conditions
　　(30sec) 1200 degrees Celsius heating test fiberglass intact
　　Flame Retardancy Test 
　　Burning speed not less than 45s/25mm
　　---- SRG-1-7kv SRG-1-4kv, (motor insulation level can reach a higher C level than H)
　　Normal low insulation breakdown voltage 7.0 kv/min 4.0 kv/min
　　Normal average insulation breakdown voltage 10.0 kv/min 7.0 kv/min