Discount Dust Free rock wool gland packing round rock wool Rope The series of rock wool products handled and exported by our corporation consist of rock wool yarns, rock wool packing, rock wool tapes, compressed rock wool fibre joint sheets and lubricate rock wool packing, etc. Possessing the properties of fireproof, heat insulation, thermal retention, electric insulation and alkali resistance, these gasket and sealing stuff are essential to modern machinery, electrical machinery, steamship boiler, electrical engineering and other industries.
Our rock wool products are made of high quality materials with skillful workmanship. With their excellent quality and complete range of specifications, they are warmly welcomed by customers both at home and abroad.
There are two type of rock wool fiber yarn, dust free and with dust: Dust free yarn: composed of around 99% asbestos fiber and 1% chemical powder, color: white, temperature: 550°C Dust yarn: composed by around 70-85% rock wool fiber and 15-25% cotton fiber, color: white, temperature: 250 ~ 550°C, according to quality grade of rock wool fiber, it can be divided into five grades: common, A grade, AA grade, AAA grade, and AAAA grade, different grade has different temperature resistance and tensile strength, the yarn can be reinforced by glass fiber yarn, brass yarn, and stainless steel yarn according to requirements.
rock wool ropes: 1) Made of long rock wool fiber yarn and braided into round form 2) Extensively used as heat insulation materials on thermal installations and heat conduction systems operated at temperatures up to 250°C, loss on ignition 32% max. 3) Braided rock wool round ropes with metallic (copper wire, nickel wire or stainless wire) are also available 4) Refractoriness: 250 ~ 550°C 5) Refractoriness of dust free asbestos round rope: 480 ~ 550°C 6) Thickness: 3 - 50mm
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