What requirements should the seam of waterproof tarpaulin meet?

The plastic tarpaulin wholesale market can buy a variety of tarpaulins, and the waterproof tarpaulin can be used with a simple repair if the damage is not serious in the process of use. However, before repairing, the following preparations need to be done: 1. The indoor ventilation and lighting of the maintenance site are good, and the site is hard-surfaced. 2. Maintenance equipment: equipped with industrial sewing machines, thermal welding machines, rope thermal bonding equipment, water bleeding test tools, eye rim molds and auxiliary tools, light transmission equipment (light transmission, natural light transmission), washing tools, drying equipment, etc. necessary maintenance equipment. When repairing, we must pay attention to the following requirements for the repair of the waterproof tarpaulin: ①The distance between the periphery of the patch cloth and the periphery of the breach or hole is greater than 40mm, and the shape of the patch is usually round or square, and the four corners of the square are Should be an arc. In case of extra-large cracks or holes, it can be cut according to the shape of the cracks or holes. ②No leakage repair or coating is allowed, and needle seam is not allowed to replace welding repair or glue repair. However, if you repair the tarpaulin by welding or glue repairing, then you must also meet the following conditions: ① The bonding strength of the repair is not less than 25N/30mm, and the repair It is not allowed to seepage, smear or leak. ②Break should be butted by hand, and should be flat and aligned after docking, and the stitch spacing should be 14-18 stitches/100mm. The width of the patch cloth to be glued and patched after manual butt is 100mm to 120mm. Holes cannot be rigidly docked. ③The bonding between the patch and the tarpaulin should be flat, close and firm, without desoldering, opening and warping.

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