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FAQ

PVC and PE plastic film, which can be used as food preservative film?

With PE material, PVC can not be used as food packing even if it is environmental protection material

Can it be covered with plastic film after pouring concrete outside zero?

We need to add antifreeze concrete water reducing agent, to select the minimum temperature (above) antifreeze agent local use, that is to say the temperature of -5 degrees, -10 degrees to use antifreeze, and then cover the protective layer on the surface of the concrete. The best use of plastic film to cover the quilt, then the best flight coverage, like the greenhouse so

Can the concrete be covered with plastic film in summer?

Summer maintenance to cover the film..And the film should be sprinkler maintenance,First, because the temperature of concrete and the internal temperature can not be too different,Otherwise, thermal stress. Internal expansion. External contraction. Produces cracksSecond. The hydration heat of the cement needs only twenty percent of the actual water, and the rest will evaporateAll water evaporates to form a contractionWe are here it is. For example, a pier pier. All set on film.Then put a bucket on top and fill it with water,Slowly drop, let the water covered pier surface. The surface temperature is reduced.

Such equipment is used for cutting paper?

Then put the plastic film along the width direction of fiber board wrapped up, usually wrapped around twenty to fifty layers, the thickness of plastic film and video.

Building floor pouring why plastic film underneath?

Only after the completion of casting, the surface of the filmThe reason is to prevent surface cracking;The question of the subjectPrevent moisture from the floor, affect the quality of the pouring

Do you have adhesive for plastic film?

The main ingredients of polyethylene for delta ethyl cyanoacrylate glue. In the air of trace water under the catalysis of additional polymerization, rapid curing and adherend glue.PE and PE (polyethylene) materials, and PE (polyethylene) and all plastic, metal, wood, ceramics, stone, rubber and other materials of the fast, perfect bonding. The adhesive strength can reach the super effect of tearing material.

What's the best way to eliminate static electricity with plastic film?

The new ion bar is now 30KV high. Suitable for relatively high electrostatic film industry.

A concrete cover film, under what circumstances to cover, what does not cover

Because the external temperature and the internal temperature of concrete can not be too different,Otherwise, thermal stress. Internal expansion. External contraction. Produces cracks