Abrasive screen—A40#

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Product Description:

Abrasive sanding mesh screen is made of nylon fabric, coated with

abrasive materials; there are three kinds of shape: Sheets, Discs and

Rolls.

It is not only suitable for sanding plaster and wall surface, but also for

sanding rusty spots of metal materials and making grinding and

polishing  treatment.  It  has  good

properties of grinding, cutting and filings

removing. And it is the most ideal

abrasive tool for interior decoration.



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Q:Does curtain wall glass wool belong to thermal insulation wool?
Glass wool is a kind of spongiform material shaped by making melten glass fibering, it's chemical content belongs to glass and is a kind of inorganic fiber. It has good molding, small bulk density, low thermal conductivity, good thermal insulation and heat insulation, good sound absorption, corrosion resistance and stable chemical performance. Ultilization of entrifugal glass wool in the construction, the surface is likely to be added with a layer of finishing with certain acoustic function, such as plastic film less than 0.5 mm, metal wire mesh, window screening, fire prevention cloth, glass fiber cloth, etc., it can basically keep the original sound absorption characteristics. Aluminum foil glass wool, centrifugal glass wool have fine features, such as fire prevention, heat preservation, easy for cutting and is one of the most commonly used material in building sound absorption. But because of the decoration lacking of centrifugal glass wool surface, and there are diffused fibers, it must be made into all kinds of hidden acoustic components. The most commonly used and cheapest structure is the suspended ceiling of dry wall or the perforated wall side of centrifugal glass wool as inner filler. Hope my answer will be helpful to you!
Q:how long can we turn on the air conditioning after screen protector?
Yes, but you can not be expelled from the fog line. it is best to stick the switch, do not open the window until thirty-five days later. Rear window except demister wire can not be energized within a week, heat is likely to cause deformation of the film. Do not lift the doors within a week to prevent the film shifts and rollings.
Q:Geomembrane design
Q:how to construct composite geo-membrane and two cloths film one film?
Construction technology of two cloths one membrane, and the connective way of two cloth one membrane edges. ① membrane and membrane's welding, non-woven cloth seams, seams film is departed with the cloth, it can't be synchronizely stressed, seam strength is 20-40% of the base materials, the connective way of two cloths film one film edges. ① membrane and membrane's welding, non-woven fabrics' seams, seam film is departed from the cloth, and can't stand synchronized force.
Q:What is the operating principle of the vacuum laminating machine?
The laminating machine must be the plastic packaging machine. The working principle is to insert the materal (or paper) to be plastic coated into the special plastic package, put the material into the plastic packaging machine, melt and solidfy the adhesive of the plastic package by heating and pressing and exhaust the air at the same time. By then plastic packaging is completed.
Q:What should pay attention to in the construction of geomembrane?
The best method is using buried laying. During construction, first of all, level out the base surface with smaller sand or clay, and then pave geomembrane. Don't stretch geomembrane too tightly, both ends embedded in the soil section is corrugated and finally pave a layer of about 10cm transition layer with fine sand or clay on paved geomembrane. Block 20-30cm stone (or concrete precast block) as scour prevention layer. It is better to avoid the stones to hit on geomembrane, and it is better to carry on the construction of the protective layer while pavement of geomembrane.
Q:What is the welding method of geotextile?
It is easy to weld the geotextiles that manual rolling and paving is enough. The surface should be flat with some deformation allowance left. The long or short nonwoven geotextiles are often bonded by lapping, seaming and welding. The seamed and welded overlap is generally more than 0.1m wide. The lapped overlap is generally more than 0.2m wide. For geotextiles with long exposure time, methods of welding and seaming are recommended. Continue seaming until the all the work is completed. (disconnected seaming is not allowed.) Before being bonded, the overlaps should not be less than 150mm wide. The minimum distance of seams to the edges (the exposed edge of material) is 25mm. The thread for seaming should be made from resin with tensile strength no less than 60N, with chemical resistance and UV resistance that are the same with that of geotextile or exceed that of geotextile. Any "missed stitch" should be avoid. Actions should be taken accordingly to prevent emission of soil, particulate matters or foreign matters.
Q:How to tear down the computer film?
It usually doesn't need any particular method to tear down computer screen film. You can tear from a certain angle, and then gradually exert strength to tear down the whole film. If you encounter some films which are not easy to tear down, heat the screen and the film with a electric hair drier for not more than 3 min, and then you can easily peel the film off.
Q:What are the specifications of plastic film
The measurement of thickness and refractive index of dielectric thin film by ellipsometry is widely used in modern science and technology. Therefore, the measurement of thin film technology has been greatly developed, ellipsometry is one of the most accurate methods of measuring thin film developed since 70s with the wide application of electronic computers. Ellipsometry measurement has the following characteristics: Can measure a very thin film (1nm), and the accuracy is very high, 1-2 orders of magnitude higher than the interference method. Is a non destructive measurement, without special preparation of samples, nor damage to the sample, compared to other precision methods: Such as weighing method, quantitative chemical analysis method is simple and convenient. The thickness, refractive index and absorption coefficient of the film can be measured simultaneously. So it can be used as an analytical tool. Is very sensitive to some surface structure, surface process and surface reaction. Is a method of studying surface physics.
Q:What are the advantages of the glass reflective film?
Reduce glare for extra comfort. It can block more than 99% of ultraviolet rays. It can make you fully enjoy the sun while prevent the family from glare and ultraviolet harassment. Its specific anti-scratch coating can make the film more durable in use. It can prevent the furniture from fading in color and reduce the high cost of air conditioning. It is energy saving and environment friendly, and can reduce the high electricity bills caused by air conditioning and heating. It can deaden ultraviolet rays intrusion, and protect indoor objects from fading in color and aging. It can filter hard light and reduce glare, and protect the skin and vision. It can increase the glass strength, reduce personal injuries and protect property, and build invisible protective screening. With one way vision and privacy protection, it can make you enjoy cozy, quiet and comfort in your living space. Improve the architectural appearance and beautify the indoor living environment. It is easy to paste and clean, and friction resistant without the need of special maintenance. It is economical and practical, and doesn't fade in color with no bubbles and long service life.

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