以低软化点的石油沥青浸渍油毡原纸，再用高软化点的的石油沥青涂布于两面，表面撒布防粘材料（如滑石粉或云母片）而制成的卷材。 石油沥青油毡是防水材料的一种。
石油沥青纸胎油毡生产过程中，填充料加入量的多少会直接影响到油毡产品的各项物理性能。
In productive process of paper based asphalt felt, the amount of filling material added has direct effect on physical properties of final products.
《石油沥青纸胎油毡》国家标准进行了第三次修订。
The third revision of National Standard《paper base asphalt felt》was done.
SBS防水卷材是以聚脂纤维为胎体，以SBS橡胶改性石油沥青为漫渍涂盖层，以聚乙烯塑料薄膜为防粘隔离层的一种柔性油毡。
Waterproof coiled materials of SBS are a flexible felt of polyester fibre as casing, SBS modified asphalt as coating and polyethylene film as antiseizing separation layer.
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