As an apprentice, one needs to master the following knowledge collected online. However, personally, I think learning these will basically be sufficient. The basic beauty knowledge that an automobile beauty apprentice needs to understand includes:
A. Why does the car's paint surface need polishing?
Due to sunlight (ultraviolet rays), rainwater, and impurities in the air, the car's paint will gradually develop an oxidation layer after a period of use (around six months). Initially, this may not be visible to the naked eye, but you can feel the unevenness when touching the body of the car. In severe cases, the car body will lose its luster, and waxing will be ineffective.
B. Why does a car need maintenance?
Any car will experience a gradual deterioration of its technical condition as mileage increases. Various components will inevitably wear out and loosen to different extents. If the protective fluids are not completely replaced, issues such as carbon buildup and scaling may occur inside the engine, power steering system, and automatic transmission. If timely targeted maintenance is not performed, it could affect the normal operation of the car and even cause excessive wear on some parts, leading to serious accidents. Therefore, vehicles must be maintained regularly or based on mileage using scientific methods and technical specifications to ensure all components function well throughout the car's lifespan.
C. What is professional car beauty?
Car beauty is a brand-new concept that fundamentally differs from regular computerized car washing and ordinary waxing. The uniqueness of professional car beauty lies in its systematic, standardized, and specialized nature. Systematic means focusing on the characteristics of the car, providing comprehensive and meticulous maintenance from the exterior to the interior. Standardization means each process has precise and standardized technical requirements. Specialization means strictly adhering to the process requirements by using specialized tools, products, and techniques. Car beauty should use high-quality professional maintenance products, targeting specific materials on various parts of the car for targeted maintenance, beautification, and renewal. After professional beauty treatment, the car's appearance will be clean and bright like new, with the paint shine lasting longer, effectively extending the car's lifespan.
D. How to handle paint scratches?
For shallow scratches, sandpaper can be used first to remove impurities and rust marks, followed by paint surface restoration and waxing. Finally, use a polishing agent to polish until the paint film becomes smooth and shiny. Medium and deep scratches cannot be repaired by polishing alone. For small areas with a depth of no more than 5mm, putty can be used to level the area before repainting. If the scratched area exposes metal, the surface coating rust and welding residues should be cleaned first, then smoothed out by sanding. Next, apply an anti-rusting oxide neutralizing agent, spray primer, and repeat the processes of painting, drying, and sanding. Severe deformations require bodywork repairs. Handling scratches demands high technical skills from technicians, requiring advanced processes to quickly restore your car to its original condition.
Currently, due to the emergence of new technologies and materials like coating, there are also dedicated polishing agents for paint scratches, also known as restorative agents, which offer better results and can be operated DIY. Top-tier global products are concentrated in Japan's car wash kingdom, offering eight types of dedicated polishing agents. More importantly, for paint surfaces, maintenance is the most critical aspect, especially for new cars. Using the best coating products can fully cover the car's original good paint condition under a layer of about 2 microns thick crystal coating. This makes daily maintenance much easier. Many Japanese brands dominate this category, but over 90% of them originate from the car wash kingdom of Sankou Chemicals. Despite numerous similar products on the market, the patented formula ensures that the top-tier product Crystal Armor remains unmatched in durability. Domestic brands are currently accelerating their catch-up in this field. Specific car beauty service items include:
(1) Car accessories. As an extension of car beauty services, car accessories meet drivers' and passengers' needs for internal decoration and convenient services, such as car perfumes, wax dusters, floor mats, seat cushions, seat covers, and steering wheel covers. These configurations make car beauty services more personalized and welcoming.
(2) Anti-explosion heat-insulating films. Including front windshield, rear windshield, and side windows. Common colors include green, sky blue, gray, brown, and natural color.
(3) Interior beauty. Interior beauty services include cabin beauty, engine beauty, and trunk cleaning. Cabin beauty includes dust removal and cleaning protection for the dashboard, ceiling, carpet, floor mat, seats, seat covers, and door interiors, as well as steam sterilization, odor removal from air vents, and indoor air purification. Engine beauty includes engine cleaning, spraying gloss protector, refurbishing, and three-filter cleaning.
(4) Body beauty. Body beauty services include computerized car washing, removing asphalt, tar, and other contaminants, waxing for increased brightness and mirror effects, paint surface formula processing, new car de-waxing, hub, tire, bumper renewal, and chassis corrosion prevention and coating.
(5) Car protection. Car protection services include installing alarms, reversing radars, static dischargers, and car voice alarm devices.
(6) Paint surface treatment. Paint surface treatment services include oxidation film, overspray, acid rain treatment, deep and shallow paint scratches treatment, partial paint panel damage treatment, and whole car painting.
E. What are the functions of car wax?
A. Water-repellent function.
Cars are often exposed to the air, inevitably subject to wind and rain. When water droplets remain on the car's surface, they become convex lenses under strong sunlight, focusing light and causing temperatures at the focal point to reach 800~1000°C, resulting in dark spots on the paint surface, significantly affecting the quality and lifespan of the paint. Additionally, water droplets can easily cause rust on exposed metal surfaces.
High-grade car wax can reduce water droplet adhesion by over 90%, greatly lowering the possibility of body erosion and maximizing paint protection.
B. High-temperature resistance function.
The principle of high-temperature resistance is the effective reflection of incoming light from different directions, preventing the aging and discoloration of the topcoat or base color.
F. Why does a car's paint need waxing?
Waxing is a fundamental method for protecting car paint. The functions of waxing include:
A. Forming a protective film on the car paint surface to effectively isolate adverse external environmental influences on the paint, such as sunlight, acid rain, bird droppings, dust, industrial pollution, etc., giving the car a layer of invisible protective clothing.
B. Enhancing the gloss of the car paint surface, achieving the ultimate mirror effect based on polishing.
C. Why does car paint need polishing?
Functions:
1. Through the chemical reaction between the polishing agent and the car paint, it allows the car paint to display its inherent gloss, achieving a mirror effect.
2. Treating minor paint damage (if not polished beforehand), including acid rain spots, alkaline water spots, lime cement spots, insect and bird bodies, industrial pollution, etc.
3. Preparing for waxing.
4. Removing fine scratches caused by polishing (hairline scratches).
Beauty knowledge goes far beyond these aspects and requires apprentices to research further.
Source: http://www.qcmrrc.com/qicherencai/news/20111012021459.html