What is sun grain? Because sun's rays illuminate is caused,sun grain is not, sun grain expression is in lamplight or below the illuminate of sun's rays, in the nick like sun's rays awn is like all round spot of face of automobile body lacquer, calling this kind of nick so is sun grain.
Why can you produce sun grain so? Because wash car and waxed means,the first reason is incorrect and cause; Because,the 2nd reason is the dirt in air or automobile body of cut of other foreign matter is caused; The 3rd reason is to excrement of a few birds falls on automobile body, among them caustic material caused loss to car lacquer surface.
If have sun grain, we can use grain of sun of purify of the following method.
The first kind of method is use nick candle. We wash car clean first, after be being washed clean when car, we can reach car place point-blank without sun's rays and in calm environment, e.g. subterranean parking lot. Next we can use paint the towel of nick candle undertakes making a round trip wiping to having the place of sun grain, should wipe after ending, reoccupy does towel to undertake wiping, such OK and polished automobile body. The 2nd kind of method is use toothpaste. If automobile body nick is very slight, so use toothpaste is enough. We can get on toothpaste daub in towel, the place that there is sun grain in automobile body then undertakes hitting encircling wiping, wipe time to be in 3 minutes or so, wipe after ending toothpaste wipe up OK.
If say two kinds of method still do not have above,method keeps clear of sun grain, so we go with respect to need the car hairdressing inn with 4S professional perhaps inn does processing. We can use the means that waxes afresh to undertake repairing, should wax only way is correct and proper, have grain of sun of method cover in so. The means that we still can use polishing is cleared sun grain, but a car can bear 7 times only at most inside its service life polishing, and car lacquer casts less more, so this kind of means gets polishing careful with.
The fashion that above author introduces can have the effect of cleared sun grain, problem advocate can choose appropriate means operation.