Can I scratch my spectacle lenses with water matte paper?

No, more and more people wear glasses, myopia.

Reading glasses, sunglasses, etc., but one of the problems with glasses is that they are easy to scratch.

Therefore, many people complain that the glasses are so expensive now, and the spectacle lenses are not durable, and the lenses are usually scratched after wearing them for half a year, which is a headache. After the glasses are scratched, it not only affects the vision, but also the aesthetics. So, how to repair the scratches of the glasses, don't worry, today I will teach you the method of repairing the scratches of the glasses.

1: Glasses accidentally scratched? Paint this thing and wash it like new! Use a resin cleaner to wipe the plastic lenses. Spray the detergent on the lenses and wipe off. Then spray liquid petroleum jelly on the scratched lenses.

And wipe it off. Liquid Vaseline would fill in that scratch and make it less noticeable. Repeat this process until you don't see any scratches after you wipe off the liquid petroleum jelly.

2: Use brass.

products or silver cloth to wipe scratched plastic lenses. Wipe and polish the lenses with a soft rag. Repeat until the scratches are gone.

3: Clean the spray with the repair tool that comes with CD ***. The cleaning spray is designed to remove scratches from CD***, but it also works on plastic lenses. Wipe this spray with a soft rag.

4: Brush lightly on the lenses with a toothbrush with a soft brush head. Gently draw a circular motion on the scratch and rinse off with cold water. If the scratches are deep, then it is advisable to repeat the process a few more times with patience.

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The main differences are: different grains of sand, different functions and different ways to use them.

1. The sand grains are different

Water frosted paper: The gap between the sand particles of water frosted paper is smaller, and the grinding powder is also smaller.

Dry sandpaper: The gap between the sand grains of dry sandpaper is larger, and the grinding dust is also larger.

2. The role is different.

Water matte paper: mainly used for grinding and polishing automobiles, furniture, leather, home appliance shells and mechanical parts.

Dry sandpaper: suitable for coarse grinding of furniture, decoration, mechanical parts, etc.

3. Different ways to use.

Water sandpaper: The grinding is smaller, so use it with water. When used with water, the crumbs will flow out with the water, and if you dry grind with water sandpaper, the crumbs will remain in the gap between the sand grains.

Dry sandpaper: During the grinding process, the chips will fall off due to the large gap, so there is no need to use it with water.

The main differences are, different sand grains, different functions, and different ways of use, as follows:

First, the sand grains are different.

1. Water frosted paper.

The gap between the sanding grains of the water frost paper is smaller, and the grinding dust is also smaller.

2. Dry sandpaper.

The gap between the grit grains of dry frosted paper is larger, and the grinding dust is also larger.

Second, the role is different.

1. Water frosted paper.

It is mainly used for grinding and polishing automobiles, furniture, leather, home appliance shells and mechanical parts.

2. Dry sandpaper.

It is suitable for rough grinding of furniture, decoration, mechanical parts, etc.

Third, the use of different methods.

1. Water frosted paper.

Because the ground dust is small, it should be used with water. When used with water, the crumbs will flow out with the water, and if you dry grind them with water sandpaper, the crumbs will remain in the gaps between the sand grains.

2. Dry sandpaper.

It does not need to be used with water because the crumbs fall off due to large gaps during grinding.

Dry matte paper.

Dry sandpaper uses synthetic resin as a binder to bond silicon carbide abrasives on latex, and coats with an antistatic coating to make high-grade products, which have the advantages of anti-clogging, anti-static, good softness and high wear resistance. A wide range of fineness options are available for grinding metal surfaces, putties and coatings. Dry sandpaper is generally made of special kraft paper and latex paper, using natural and synthetic resin as binders, and is manufactured by advanced high-electrostatic sand planting process.

It is widely used in furniture, decoration and other industries, especially coarse grinding.

Water frosted paper. The texture is relatively fine, and the water frosted paper is suitable for grinding some things with a more delicate texture, and is suitable for post-processing;

The gap between the sand grains of the water sandpaper is smaller, and the grinding of the broken is also smaller, and the broken dust will flow out with the water when used with water, so it should be used with water, if the water sandpaper is dry grinded, the broken will remain in the gap of the sand particles, so that the surface of the sandpaper will be brightened, so that it can not achieve its original effect, and the dry sandpaper is not so troublesome, the gap between its sand particles is larger, and the grinding of the broken dust is also larger, and it will fall down in the process of grinding due to the large gap, so it does not need to be used with water.

Water frosted paper is very different from dry frosted paper, and the purpose is also different.

Water matte paper is finer in texture, while dry matte paper is rougher.

Water frosted paper is suitable for grinding some things with delicate textures, and is suitable for post-processing; Dry sandpaper is suitable for rough machining or sanding some rough things, such as iron pipes or something.

Water sandpaper was first used to polish the paint surface, at that time it was a large number of meshes, relatively fine, and the effect of dipping it in water was better Later, the manufacturer also came out of the coarse, wood or wall, etc., of course, there is no need to dip it in water (mainly sharp brand, diamond brand, etc.), but people are still used to calling this red electrostatic sand planting product called water sandpaper About a piece, but this sandpaper is uneven Now there is a new product, uniform thickness, durable, no sand, The quality is better than the previous one (take Luo Qiu's as an example), and in order to distinguish it they call it dry sandpaper, which of course cannot be dipped in water, about one yuan a piece

The use of water sandpaper is used in water, or used with water, can not be dry grinding, all sandpaper should be cut into blocks of about 60x30 mm for use, generally grinding stones, looking for a flat surface of the stone (if the surface of the stone is not smooth enough, you can go to the hardware store to buy iron sandpaper, grind him flat, the iron sandpaper particles are relatively large, it is used for coarse grinding, it must be dry grinding, the water sandpaper particles are small, it is used for fine grinding, and water is used), add water sandpaper to water grinding, from the coarsest grinding, the water sandpaper number is the smallest, It is the coarseest, generally 320, a place to grind back and forth dozens of times, then 600, then 800, and so on, until the water grinds to No. 5000, every time you change the sandpaper, you must thoroughly rinse and clean the stone with water, and use a toothbrush to wash off the dirt in the recesses and corners, so as to use finer sandpaper. No. 5000 sandpaper, can be cut into such a size or slightly larger, folded, sandpaper face sandpaper surface, rub against each other, until the surface is smooth, sandpaper soft, such sandpaper is called polishing sandpaper, you can dry the stone after the stone has gone through all the water grinding procedures, use this polishing, dry erasing, very effective.

Sandpaper is divided into two types: water sandpaper and dry sandpaper. What you are asking about is the water mill and dry grinding of water sand, and there is a kind of dry sand, which can only be dry grinding, which is generally used in furniture factories, which is more expensive and rarely used for decoration.

Generally, the gap between the sand particles of water sandpaper is smaller, and the grinding of the crushed is also smaller, and the crushed dust will flow out with the water when used with water, so it should be used with water. Dry sandpaper is not so troublesome, the gap between its sand particles is larger, and the grinding is larger, and it will fall down due to the large gap in the grinding process, so it does not need to be used with water. Water sandpaper grinds slower, but the grind is lighter (the finer the water sandpaper, the slower it grinds and the lighter it is), the dry sandpaper grinds faster but grinds out coarser (the coarser the dry sandpaper grinds faster and the coarser), if you don't want to grind as much as you want, use the water sandpaper to grind it off, and then use the water sandpaper to polish it (it also depends on whether you want to polish it).

Water sandpaper should actually be a water abrasive cloth, because some sanding processes must use water. Dry sandpaper can't be used with water, and abrasive cloth can't be used. Because abrasives and adhesives are not allowed. Because the dry abrasive cloth cannot touch water, and the working efficiency of cutting (grinding) of the water abrasive cloth under waterless conditions is far less than that of the dry abrasive cloth.

Ground to matte, that is, faded.

The main thing to look at when polishing the mirror is the thickness of the sandpaper and the polishing technique (generally do not use oil friction, which increases the difficulty of subsequent wiping, and most of them are polished with pure water.) Generally, the finer the sandpaper used for grinding, there is no obvious sandpaper pattern when using circular grinding, as for polishing, it still has to be matched with polishing slurry and polishing liquid!

Polishing with abrasive paste and polishing machine will do.

In addition to metallographic sandpaper, which can be used with water, there is a "water sandpaper" that can be dipped in water.

The use method is the same as dry sandpaper, reed ants can be used with dry grinding water mill, and the water mill can be ground to a finer shortage. Accompaniment.

Water sandpaper is also called water sandpaper, water-resistant sandpaper, that is, sandpaper that can be water-sanded. The sand material of water sandpaper is generally silicon carbide, and the paper base is usually kraft paper. There are also relatively high-end ones, such as imported 3M water sandpaper, and many of the paper bases are latex paper.

Latex paper is characterized by good flexibility and stronger surface adhesion of sand grains, resulting in more durable sandpaper, more uniform grains and better polishing results.

The gap between the sand particles of water sandpaper is smaller than that of dry sandpaper, and the crumbs of the ground items are also smaller, and the debris will flow out with the water when used with water, so as to maintain the sharpness of the sandpaper surface. If the sandpaper is dry grinded, the product chips will adhere to the gap between the sand grains, so that the surface of the sandpaper will lose its sharpness and there will be no grinding force. Thus it cannot be used effectively.

Water sandpaper is widely used in stone grinding, hardware processing, mold processing, wall putty grinding, automobile surface grinding, rust removal, paint removal and other industries. Used on wood, mainly small pieces or wood carvings, for the repair of furniture. For example:

Wood sculptures, root carvings, wood carving paintings, prayer beads, bracelets, wooden combs, etc.

Generally, the gap between the sand grains of water frosted paper is smaller, and the grinding dust is also smaller, and the crushed dust will flow out with the water when used with water, so the effect is good when used with water.

Sandpaper also plays a great role in the production of models, such as eliminating the water inlet of the parts, grinding the parts cut from the runner notch, etc., and sometimes you can also use fine sandpaper to remove the luster of the spray paint, remove the oxide layer of the metal parts, and the metal parts emit the original metallic luster. Dipping oil on sandpaper can make the wooden model show a soft luster.