Finding a friend like me is the first step.

Studying hard is the second step.

Getting rid of bad habits is the third step

Introduction to painting-seeing through carefully is the fourth step.

Looking for me is step five.

Basic goods

1. Check. When the car passes through the sheet metal, first check what to do. Look at the reflection on the side. If there are uneven places and places that have been sheeted, first polish them with 150 sandpaper. The polishing range exceeds the uneven part by about 5 cm. Don't use 60, 60 is too thick, which will affect the later process.

2. Ash filling, that is, the first ash filling for the polished place. Pay attention to scrape a thin layer of metal dust first, and then scrape atomic ash where the iron is exposed. Don't touch up the ash outside the scope. Generally, it is best to be about 2 cm away from the grinding edge to facilitate rapid grinding. It is worth mentioning that the novice should make up the filled place a little higher, and then scrape the gray edge thin, which can be ignored by skilled hands.

3. Grinding: make up the first handful of ash. Make sure that the pit has been filled before grinding, and start water milling 15 minutes after ash filling. Don't wait for the ash to dry, so grinding will be difficult. Dry grinding must wait until the ash is dry. Beginners suggest learning to mill water first. First, use 150 sandpaper to grind off the edge of the accumulated dust, and then grind it flat as a whole. If the ash is too thick, grind it 60 times, but don't grind it to the edge of the ash. 60 mill, then use 150. Look at the gray edge. If it is as smooth as before, the ash will be flat.

4. polish the paint surface. First, judge that there is no color difference on the paint surface. Grinding with 800. If there is color difference, polish it with 1500. Polishing with 1500 must be thoroughly polished, that is, where there is no light on the polished paint surface, if there is light, the polishing is not thorough. Why is 800 different from 1500? I will explain it in detail later.

5. Fill the sand holes and sandpaper road, where it was polished with 150 before and the small reflective pit left by polishing the paint surface, and then scrape it clean with putty. This time, scrape the ash hard, and the filling range should cover all the areas polished with 150. This ash can't be polished until it is completely dry. Just scrape it with your nails and polish it until the scratch turns white.

6. Polishing: Use No.240 sandpaper to smooth the ash and road filled with sand holes, and then use No.400 sandpaper to polish the smooth place again.

7. Spray primer or scrape red ash, and finally fill the place with ash. Whether spraying primer or scraping red ash, the edges must be ground with wooden boards, so that there will be no ash marks when spraying. Grinding with 800 or 1000 is not recommended. 600 sandpaper road is too big, which affects perfection. The primer should be polished flat and smooth, and the red ash should be worn thoroughly as far as possible, that is, only the sandpaper road and sand are left after the basic grinding. If a large piece of red ash is left, it will lead to peeling and foaming. . . Where a large area of red ash needs to be left, bake it with a baking lamp, polish it after cooling, and bake it with a baking lamp again after polishing, which can increase the adhesion of red ash and reduce the chance of paint stripping or foaming.

8. Clean the car, and clean the parts to be painted and the adjacent parts.

9. Blow water to stick a newspaper or cover paper. Blow water to dry all joints. Don't stick the sticker to the edge at once. Leave some edges, add a piece of paper tape to stick the edges, and tear off the paper tape immediately after painting, so that there will be no edges when spraying.

Spray painted products

After the basic things are finished, you can draw. Before painting, clean the place where you play with paint with gasoline or degreasing agent, and then wipe it with dust-proof cloth.

1. Paint, that is, spray top coat. Colored paints are divided into nitrocellulose paints and baking paints, namely 1k and 2k, and 2k is also called plain paint. 1k needs varnish to emit light, and 2k directly emits light. The ratio of nitro group to diluent is 1: 1.3, and the spraying effect is the best. Many people are 1: 1, but if you want to be perfect, you need to change the washing point. See the paint mixing ruler for details. It is best that the paint can just cover the scale on the ruler. The coating needs to add curing agent and diluent in the ratio of 2: 1:0.5. The proportion of paint is a bit special and not fixed. Specifically, you can spray it on the newspaper first and once to see the fusion effect of the paint. If it does not fuse or fuse too slowly, it means it is thick and needs to be diluted. If it is sprayed out like water, it means it is thin and easy to sag. It is best to spray paint to see the fusion. Spray nitro, first long distance, atmospheric pressure, less paint, mist and then spray. When spraying, wipe it with a dusting cloth when it is dry, and then spray it with a normal distance of about 25 cm and a moderate air volume and a moderate amount of paint. Spray it with a dusting cloth first, then spray it again when it is completely covered, spray it again when it is dry, spray it again when it is dry, and wipe it with a dusting cloth when it is dry to see if there is any hemp. Blow the polished area clean, float the polished area and spray it again. Just see that there is no 800 sandpaper road, and spray it again until there is no 800 sandpaper road. The baking paint floats far away from a place where ash is replenished, basically covered, and then sprayed like light when it flashes dry.

2. shine, that is, spray varnish. The ratio of varnish, curing agent and diluent is adjusted according to the ratio provided by the manufacturer, which is generally 2: 1:0.5. I usually use varnish, curing agent 2: 1 and 10% thinner. No more diluent, easy to sag, 10% diluent is enough. Before spraying varnish, the top coat should be wiped with a dusting cloth at atmospheric pressure, and all of them should be wiped clean. Pay attention to the silk of dust removal cloth, if any, and remove it immediately. Start spraying after wiping, spray a gun on the ground first, and it looks like a fan at an angle, and then spray it after the paint is uniform. Spray paint at a distance of 25 cm at atmospheric pressure. If you look sideways at the varnish sprayed on the car, it will turn into light. Follow the light, don't slow down or stop, don't go too fast, just follow the light and press the front half together. Check immediately after spraying. If there is big dust and ash, pick it up with paper tape immediately. After picking, float a gun at a distance of 35 cm. Don't float too heavy. If the orange peel is not bright, fill the gun at a distance of about 35 cm. Hurry up and mend the gun, and the orange peel is not so obvious. When the flash is dry, touch the newspaper and spray it on the second floor without sticking your hands. The second coating has a large amount of paint at atmospheric pressure. Looking sideways, walking at the first light will be faster than the first coat. Walk twice and look at the reflection after walking. Where there is orange peel, fill the gun immediately. How far is it from the gun? It is about 10cm. Hurry up and mend the gun.

3. Tear off the edge strip and immediately tear off the edge strip and the paper tape stuck in front. Continue pumping 15 minutes. Then let's call it a day.

How to avoid too much color difference

As mentioned above, polish the paint surface with 1500. After spraying the paint, throw the gun at the edge of the paint, pull it a little, and don't spray the rest. Then clean all the places with dust-proof cloth and shine together, so that there is basically no color difference when spraying.

About making tendons

Every place with tendons has two sides. When mending the ashes, mend the top first, then the bottom. Scrape the bottom up a little, grind the bottom first, and then grind the top. Don't get the order wrong. Grind the lower side, pull a piece of paper tape to the front and back of the rib, and then grind the upper side until the line is straight. .

Painting sagging problem

The paint is spraying, wait until it is dry and smooth before continuing spraying. When the varnish is sprayed, spray it from below until it hangs down. When the paint dries, you will find that the sag has become very small. Just a little polishing will do.

About losing light

The gloss is lost because there are too many curing agents and thinners or the varnish is sprayed too thin and dried too fast, so it is usually polished when the gloss is lost. When spraying varnish, I said, the first time, press bright, wait for enough flash drying time, and the second time, fill up the varnish, so that the sprayed car has basically no light loss.

Yu yinfen

Many newcomers can't spray silver powder well. Here is my method. The silver powder car should be laid strictly, without pits or traces. Silver powder has good covering ability, but poor filling ability. A perfect foundation is the first condition. Generally silver should be diluted. When you look at it with the paint mixing ruler, you can see that the silver powder is scattered all over the floor, and it is good to barely cover the scale on the paint mixing ruler. Just like before, the fog will float once, wet spray once when it is dry, and wet spray once when it is dry. After checking the place where there is no numbness, wipe it with a dust cloth, and then float it evenly under medium air pressure. The paint amount is about 25 cm until it is dry, so that it will never shine when sprayed.

Before spraying, make sure the place where you have worn through, dry it and cover it, and then spray it wet to this place to float gently, without pressing, because the paint is thin and will not frost when it is completely dry, which will not affect the effect. If it is dry spraying and wet spraying, there will be obvious frosting, which proves that the paint is still rough and the silver powder cannot be scattered.

Deal with pungent paint

The top coat was bitten off as soon as it was sprayed. Don't be busy. When it's dry, 800 will smooth it out. Pay attention to light grinding. Gently scrape a thin layer with metal ash to cover the bite mark area of one or two centimeters. When it is dry, grind it gently with 800. Don't grind through the ash until it is smooth and smooth without edges and corners. Keep spraying and don't bite. There are other Jianghu tricks, which are not recommended. The size is fine enough with sheet metal and ash, which will not affect the final perfect effect. . . . Jianghu secrets can be shared if necessary.

About white pearl

White pearls are actually very easy to spray. Spray the white background first, but don't worry. Wait until the white background is dry before floating pearls. If you don't do it on a white background, the floating beads will open. . . If you want to break up the pearls, change them very thin. . Looking at it with the paint mixing ruler, the pearls flowing down from the paint mixing ruler are very scattered and granular. . The pressure of floating beads is moderate, and the amount of paint is about 35 cm. Take the gun quickly and walk back and forth twice, so that the pearls are evenly scattered on the white background. Shine. pay