Jimmy encountered some customers  when buying cold applied tape, PE cold applied tape,PP cold applied tape.Oral explanation is not clear, simply write this topic article, to help needy friends solve the problem here. I hope there will be no more friends who ask me for the cold  applied tape.
 

The surface of polyethylene cold applied tape is smooth, while the surface of polypropylene reinforced fiber is rough and gray, which is the most intuitive difference. The base material of polyethylene cold applied tape is made of the basic film of polyethylene raw material, while the polypropylene cold applied  tape is made of polypropylene fiber strips. The surface of the braided surface has very obvious traces of braided fiber strips. The two products, coated with butyl rubber modified asphalt adhesive, are the same, the substrate is generally about 0.35 mm thick, coated with adhesive layer at 0.75-1.2, plus a thin layer of isolation film, the total thickness of 1.1-1.5mm, can be customized for customers. Generally not recommended, do thicker, mainly too thick glue, in fact, the effect is not necessarily good, construction is also more troublesome. The existence of the isolation film is to prevent the glue and substrate from sticking together when winding into a coil. In actual construction, it is necessary to remove the isolation film and then wrap the strip on the primer steel. The adhesive layer is aligned with the primer steel, and then overlap the winding as required.

 

The advantages and disadvantages of the two kinds of tapes: polyethylene cold applied tape, because of the characteristics of polyethylene substrate, elongation at break is large, so the tape tensile and flexibility is better, water vapor permeability than polypropylene has certain advantages, more suitable for wet geographical environment. The tensile strength of polypropylene reinforced fiber woven cold applied tape is very high, and the wear resistance of the substrate surface is very good, which is more suitable for sand and stone environment. Both tapes have their own advantages and disadvantages, but the overall performance is to meet the SYT0414-2017 standard, can be replaced under normal circumstances, of course, the situation is now using polypropylene cold applied  tape more users.