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FAQ

What is concrete plastic sheeting for moisture conservation?

Film curing agent maintenance: in the new pouring concrete surface coated with a layer of liquid film curing agent (also called film solution), curing agent on the surface of the concrete to seal a layer of impermeable film formed quickly, prevent water evaporation in concrete, a maintenance method in concrete water mud fully water condition.

PVC plastic film, ultrasonic welding machine welding, welding can.

Ultrasonic welding of PVC film is possible in principle, but because the principle of ultrasonic wave is to produce heat by friction, it is necessary to do dentate pattern on the die to increase friction, otherwise it does not generate heat.

Why should a plastic film be added to the new cement road?

The new cement road needs a layer of plastic film for better maintenance.

How many days can the concrete be taken away from the concrete?

Cover water conservation according to the outside temperature in general should be concrete after pouring 3 material 12h with straw, Luxi, sacks, sawdust, wet soil and wet sand of the concrete cover, and regular watering to keep moist. Concrete watering maintenance date, Portland cement, ordinary cement and slag cement mixing concrete may not be less than 7 days and nights. Mixing with retarding admixture or concrete with impermeability shall not be less than 14 days and nights; when using bauxite cement, not less than 3 days and nights. The number of daily watering can keep concrete with sufficient moist condition is appropriate, when the air temperature is above 15 DEG C, in the concrete pouring after 3 days in the daytime, at least every 3 hours a night should also be watering, watering two times, after the maintenance, at least 3 times every day watering (of course, when the temperature of the drying can increase the number of water right). For the larger area (or volume) of concrete, should adopt the "water conservation" for reservoir engineering in the demolition of the internal model, concrete reaches certain strength water conservation; to the underground structure or foundation, can be renewed by brushing the surface of asphalt emulsion or soil backfill instead of water conservation.

Is it necessary to use disposable plastic film to cover the furniture for brushing latex paint?

Plastic packaging and plastic packaging products market share was growing, especially the composite plastic packaging, has been widely used in food, medicine, chemical and other fields, especially in food packaging accounted for the largest proportion, such as beverage packaging, frozen food packaging, food packaging, food packaging, food cooking. These products have brought great convenience to people's life.

How to remove the plastic film on the steel door?

General door film, the best in 40 days after installation, immediately tore off the protective film, otherwise, when long, is stuck in it, not clear. Because there is paint on the door, it is not recommended to use gasoline, toluene and other solvents to dilute, otherwise, the door will also remove the paint.

Which plastic film is more suitable for making heat shrinkable labels?

Need to blank, QS logo for color requirements, bar code is required for the blank area, height can be adjusted. But not less than GB 1/3.

What is the function of the plastic film on the refrigerator cabinet?

Because the SIEMENS refrigerator is in the refrigerator on both sides of the refrigerator, this layer of film will be blocked, the outer layer of film can effectively protect the appearance of the refrigerator, not quality problems, can rest assured that the use of! The ` `