How to Clean Scales From an Angle Grinder From a Glass
Glass as an element of decoration for pottery appeared 6 thousand years ago in Egypt and Ancient Babylon. For so much time, glass materials of different compositions began to be used not only for decoration, domestic needs and as a finishing material, but also in medicine, industry. The main quality of modern glass of any kind is transparency. How to polish glass and restore its crystallinity and clearness in case of damage?
Polishing is the removal of the thinnest layer of material using abrasive, chemical reagents, physico-chemical or plasma methods, which gives the micro-roughness and luster of the glass surface.
How to polish glass
Grinding and polishing are different processes, as evidenced by electron microscopes. Polishing is considered a physicochemical phenomenon, as a result of which it is assumed that the upper layer of glass becomes plastic, so irregularities and tubercles turn into a continuous smooth surface.
When polishing glass at home, micropowder solutions are used, which are passed through a fuel filter before use, and pastes. Compositions for polishing glass can be industrial-made and home-made.
GOI paste is a mixture of finely dispersed chromium oxide Cr2O3, active components and a fatty ligament.
The composition is of four types in size of “grain”: rough. “overwrites” scratches, medium (of two types) smooths, and thin. “rules” to a mirror shine. GOI paste can remove scratches on glass ceramics, polish any glass, even optical. How to use GOI paste:
It does not dissolve in water, but in purified gasoline. easily. Therefore, gasoline (or kerosene) is slightly wetted with felt, flannel or felt, and then GOI paste is applied.
Mineral oil is dripped onto a glass surface. And they begin processing.
The rotation should be soft, without sharp reinforcements.
Specialists in the manufacture of lenses for telescopes recommend washing the organic binder from abrasive particles with solvents to make polishing faster. But when rubbing organic glass, this should not be done.
Chromium oxide has toxic properties. It resembles corundum in hardness. It is also found in the art oil paint “Chromium dioxide green.”
In order to remove scratches from glass surfaces, no matter what they start polishing, first use pastes with a rough “grain”, then thin ones. As polishing material use:
Soft cloth, felt, felt.
Leather (untreated), suede.
Category polishing resin.
And even a tree.
Polishing glass is advised by an angle grinder with manually adjustable revolutions, a drill, and a grinding machine, fixing felt material to the disk and applying polishing paste. Or a special electric polisher.
Wooden blocks, rubber, fabric or cotton wool, covered first with leather and then with felt, are also suitable for processing, but it will take an enormous amount of effort and time to polish it manually.
How to polish a double-glazed window and a mirror
In construction, a number of glass varieties are used, which differ in thickness and optical-energy characteristics. Quality window panes are colorless with a high light transmittance. There are two types:
Video: How to Clean Scales From an Angle Grinder From a Glass
M4. polished float glass, which is produced by casting molten glass tape on molten tin in a certain atmospheric environment and temperature.
M5 and M6. made by the "old-fashioned" vertical method of drawing between the rollers.
Heat-saving glass is opaque, a reflective coating gives a slight “haze”. Laminated. have a shade. It is impractical to polish them. Tempered glass is also best not to be machined. Ordinary glasses are transparent to the radiation of the optical range of electromagnetic waves, for which they are appreciated. Small damage to them does not affect the lighting, but spoil the aesthetics of the room and the mood of the inhabitants.
If the scratches are small, “hairy,” then you can try polishing the clear glass. If the grooves remain deep, cling to the nail, or it is scale from an angle grinder, then it is better to change the double-glazed window. Since the material during processing will thin out in one place and give a crack.
In double-glazed windows, thermally polished glass is often used, on which, with additional grinding, a lens is formed, which will be noticeable in a prominent place.
Just like window panes, polish mirrors if they are damaged from the outside. In this case, the “lens” effect may also occur. Sometimes, it is better to apply a sandblasting pattern than polishing the mirror from scratches. But you should choose a picture so that the scratch falls on the border of the screen image, because the sandblast will deepen the defect.
How to polish your car glass yourself
Slight scratches and dullness from scuffs on the glass surfaces of the car are polished with special pastes for car windows. Most of them are made on the principle of GOI paste.
The owners of the "thin section" for the car. they will not experience any difficulty. The polishing machine is replaced with a drill or angle grinder. But there is a nuance. Side windows can also be polished at high speeds. But for laminated windshields and rear windows that have a bonding and reinforcing layer of polyvinyl butyral (PVB) inside, heating from intense friction is contraindicated, since it causes darkening.
How to polish your car glass yourself:
Circle defects from the inside so as not to lose damaged areas.
Cover parts of the body with protective material and secure with tape so as not to spoil the paintwork.
You can apply the paste to the glass with the same material that will be used for polishing.
It is imperative to irrigate the surface from the atomizer at the beginning of work and in the process, to prevent the paste from drying out when heated by friction.
To polish sites on 1000. 2500 turns.
Before proceeding to the next section, rinse the treated area and examine from different angles, including from the passenger compartment. If the result does not satisfy, repeat the process. You may need to change the polishing mixture.
When polishing car windows, use safety glasses and clothing.
The GOI paste was named after the initial letters of the place of invention. the State Optical Institute.
How to polish the glass of the phone?
With a scratched glass, the phone does the same as with other glass surfaces: they rub it with GOI paste using soft suede or cotton napkins. In order not to contaminate the entire body, the screen is removed or sealed with tape with the entire uncultivated area.
For scratched touch phones and polishing touch screens, special tools are recommended that remove scratches from CD discs. But they are more likely to hide damage than to get rid of them. After a while, the procedure will have to be repeated. Keep in mind that heating the screen can damage the sensors.
Removing scratches from watch and glasses
Before removing scratches from the watch glass, first determine the appearance. There are sapphire (including anti-glare), mineral, plexiglass and combined (with an external sapphire). The softer the material, the faster the scratches are removed. Cheap. it is better to replace than polish.
The most difficult to process are sapphire glasses, they are polished with diamond powders using a grinding machine, and with an “anti-glare” film they are given for repair to professionals.
The watch is disassembled for convenience, so as not to damage the case. And rubbed in a circular motion on the fabric covered with a polishing agent (or vice versa).
Do the same with lenses for glasses, protecting the frame. Previously, of course, having understood the material (mineral glass or polymer). Glasses with diopters cannot be polished on their own.
Manually, you can get rid of scuffs and dullness, and polishing scratches on any glass is more convenient and faster with a polishing machine. If you can’t get rid of the defects, you can always contact the auto repair shop, watchmakers or glaziers.