Atomic ash has a wide range of categories, and different types of atomic ash have significant differences in performance and applicable scenarios. Choosing the right atomic ash is the first step to ensure the repair effect.

Select based on the characteristics of the substrate

There are various substrates for car bodies, commonly including steel, aluminum, and plastic. Different substrates have different requirements for the adhesion of atomic ash. For example, the surface of aluminum is relatively smooth, and ordinary atomic ash is difficult to form a firm adhesion. In this case, specialized atomic ash developed specifically for aluminum needs to be selected. This type of atomic ash is added with a special adhesion promoter, which can tightly bond with the surface of the aluminum material, effectively avoiding problems such as detachment and cracking in the future. For steel substrates, filling type atomic ash is a good choice. It has high strength and good stacking ability, and can fill large depressions or gaps at once, laying a solid foundation for subsequent repairs.

Select based on repair requirements

The differences in repair requirements also determine the direction of choosing atomic ash. If it is to repair minor flaws on the surface of the car body, such as small scratches, sand holes, etc., scraping (spraying) type atomic ash is more suitable. It has fine particles, good flexibility, and is easy to polish after drying, which can achieve a smooth and even effect on the surface of the car body. For the filling of large areas of depressions or structural joints, filling type atomic ash can play its advantages by applying a thicker coating at once, greatly improving the repair efficiency. The performance of intermediate type atomic ash is between the two, suitable for some moderate repair scenarios, and can balance filling and delicacy.

Atomic ash is usually composed of main ash and curing agent, and the mixing ratio and uniformity of the two directly affect the curing effect and performance of atomic ash, which in turn has a significant impact on the repair effect of sheet metal.

Proportional precise adaptation

The mixing ratio of main ash and curing agent is not fixed and needs to be flexibly adjusted according to the ambient temperature. Generally speaking, the temperature is higher in summer, and the solidification speed of atomic ash is faster. The ratio of main ash to curing agent can be controlled at 100:1-2; In winter, the temperature is lower and the curing speed slows down, so the ratio is adjusted to 100:2-3. If too much curing agent is added, it will cause excessive heat release from the atomic ash, increase the risk of foaming and pinhole formation, and shorten the coating and scraping time, resulting in insufficient wetting time between the atomic ash and the metal surface, affecting adhesion. On the contrary, if the curing agent is not added enough and the atomic ash is not fully cured, the surface will become viscous, the polishing performance will deteriorate, and problems such as poor adhesion and surface dryness may occur during painting.

Mix evenly and thoroughly

When blending atomic ash, it is necessary to ensure that the main ash is evenly mixed with the curing agent. Uneven mixing can lead to uneven curing of the coating, resulting in poor adhesion, blistering, uneven surface, and color transmission after painting. During the mixing process, specialized mixing tools should be used to slowly mix in the same direction until the two ingredients are completely fused and form a uniform paste.

The construction process of atomic ash includes multiple steps such as scraping, drying, and polishing. Whether the operation of each step is standardized has a direct impact on the final repair effect.

Scratching technique

When applying atomic ash, the principle of "thin coating with multiple layers" should be followed. First, lightly scrape a thin layer of atomic ash to fully immerse it in the substrate, enhance adhesion, and then apply a thick layer of coating. This can reduce the generation of pores and avoid coating cracking. For the case of continuously scraping multiple layers of atomic ash, it is necessary to ensure that the surface of the previous layer of atomic ash is dry before proceeding to the next layer of scraping, otherwise it will result in weak bonding between the coatings. During the scraping process, attention should be paid to the angle and strength of the scraper to evenly distribute the atomic ash in the damaged areas, especially in the curved parts of the car body. It is necessary to use a combination of manual scraping and polishing to achieve a smooth and uniform surface.

Drying and polishing

The drying time of atomic ash is affected by factors such as environmental temperature and humidity. Under high humidity climate conditions, the drying time required will be relatively prolonged. It is necessary to ensure that the atomic ash is completely dry before polishing and painting operations, otherwise there may be sticking of sandpaper during polishing, and problems such as bubbling and peeling may occur after painting. When polishing, choose the appropriate type of sandpaper and follow the order from coarse to fine. First, use coarse sandpaper to remove the protrusions and excess parts on the surface of the atomic ash, and then use fine sandpaper for fine polishing to gradually reduce the surface roughness until a smooth and delicate effect is achieved. During the polishing process, it is important to maintain the flatness of the sandpaper to avoid scratches or uneven polishing.

The quality of atomic ash is the fundamental factor affecting the effectiveness of sheet metal repair, and high-quality atomic ash can provide reliable guarantees for the repair process.

Raw materials and formulas

High quality atomic ash uses high-quality unsaturated polyester resin as the main raw material, combined with rigorously screened additives such as talcum powder and curing agent. Reasonable formula design can enable atomic ash to have good adhesion, flexibility, heat resistance, and impact resistance. For example, the atomic ash produced by Changxing Baodi can maintain stable performance even in high temperature environments by optimizing its formula, and is less prone to cracking, deformation, and other problems. At the same time, the VOC emissions of high-quality atomic ash are much lower than traditional oily putty, making it more environmentally friendly and safe.

Production process and testing

Advanced production technology and strict quality inspection system are the key to ensuring the quality of atomic ash. During the production process, precise metering, mixing, and stirring techniques are used to ensure the uniform distribution of various components of atomic ash. Before leaving the factory, the finished product will undergo multiple performance tests, such as adhesion testing, flexibility testing, heat resistance testing, etc. Only when all indicators meet the standards can it be put on the market. Changxing Baodi always adheres to high standard production requirements, and every batch of atomic ash undergoes strict testing to provide customers with stable and reliable products.

In addition to the factors of atomic ash itself, there are also some auxiliary factors that can affect the effectiveness of automotive sheet metal repair, which need to be coordinated with the use of atomic ash.

substrate treatment

Before applying atomic ash, the substrate must be thoroughly cleaned and treated. Remove oil stains, rust, dust and other impurities from the surface of the substrate, and perform polishing treatment to increase the roughness of the substrate and improve the adhesion of atomic ash. If the substrate is not handled properly, even with high-quality atomic ash, it is difficult to form a strong bond, ultimately affecting the repair effect.

construction environment

The temperature, humidity, and cleanliness of the construction environment have a significant impact on the construction and solidification effect of atomic ash. The suitable construction temperature is 15-25 ℃, and the relative humidity does not exceed 65%. Excessive or insufficient temperature can affect the curing speed and performance of atomic ash; Excessive humidity can prolong the drying time of atomic ash and may also cause problems such as foaming. At the same time, the construction environment should be kept clean to avoid dust and impurities from falling on the surface of the un dried atomic ash, which may affect the appearance of the repaired area.

Technical proficiency of operators

The technical level of operators directly determines the quality of atomic ash construction. Experienced operators can accurately select the type, proportion, and construction method of atomic ash according to different repair scenarios. Proficient in techniques such as scraping and polishing to ensure construction effectiveness. Therefore, strengthening technical training for operators and improving their professional competence is an important measure to enhance the effectiveness of automotive sheet metal repair.

In short, the effect of automotive sheet metal repair is the result of the combined action of the selection, blending, construction, quality, and other auxiliary factors of atomic ash. Changxing Baodi Environmental Protection Technology Co., Ltd., as a professional manufacturer of atomic ash, will continue to be committed to providing high-quality and multi category atomic ash products to the market, and providing professional technical support to customers to help the automotive sheet metal repair industry achieve better repair results.