1) Before welding, it is necessary to conduct experimental welding on the geomembrane sample. The temperature, speed, and pressure

of the welding must be determined through experimentation and testing to inspect and adjust the welding equipment; After the welding

equipment and welding personnel successfully complete the experimental welding, proceed to the next step of production welding;

3) Before welding, the grease, moisture, dust, debris, and other impurities that hinder welding and affect construction quality on the

surface of the film must be cleaned up.

4) Welding should be stopped when the ambient temperature is too high or too low.

5) Each piece of anti-seepage membrane must be welded on the day of installation.

6) The edge of the upper anti-seepage membrane at the weld seam should be polished at a 45 ° angle to improve the welding quality of

the weld seam.

7) The lap length of the anti-seepage membrane welding joint shall not be less than 100mm, the lap length of the double track hot melt

welding and the lap length of the single track extrusion welding.

8) The thickness of the welding joint shall not be less than 1.5 times the thickness of the film.