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防水蓬布涂刷了防水油膏涂层后,不仅防水效果好.而且隔热、抗风、使用寿命延长、深受用户欢迎。1、帆布的预处理。将缝制或未缝制好的蓬布在氯化铵饱和溶液中浸泡20-22小时,晾干。如果旧蓬布重涂刷防水油膏,则要先清除掉尘土,洗净油污,补好破损处,曝晒2-4小时。2、防水油膏的原料与规格。30号机油(中粘度)、大于58。的矿蜡、松香(工业级下同)、明矾、硬酯酸、无机颜料、醇酸树酯清漆、40%太古油、明胶。3、熬胶。将30号机油100公斤盛于大铁锅中,用火直接加热,待机油升温到150-160℃时,边搅拌边加入研细的松香粉5公斤;溶解后,再加入1公斤明矾、5公斤矿蜡和1公斤硬酯酸,全部溶解后,继续加热升温;加
Waterproof tarpaulin coated with waterproof ointment coating, the waterproof effect is not only good. And insulation, wind, longer service life, welcomed by users. 1, canvas pretreatment. The sewing or not sewed tarpaulin in saturated ammonium chloride solution soak 20-22 hours, dry. If the old tarpaulin repellent brushing waterproof grease, you must first remove the dust, wash the oil, make up the damaged Department, exposure 2-4 hours. 2, waterproof ointment of raw materials and specifications. 30 oil (medium viscosity), greater than 58. Rosin (technical grade the same below), alum, stearic acid, inorganic pigment, alkyd varnish, 40% swan oil, gelatin. 3, boil gum. 100 kg of oil 30 Sheng Sheng in a large iron pan, the direct heating with fire until the heating oil to 150-160 ° C, while stirring added fine powder 5 kg research; dissolved, then add 1 kg of alum, 5 Kg of mineral wax and 1 kg of stearic acid, all dissolved, continue to heat up; plus