This article will combine the entire process of automotive repair paint construction, focusing on the systematic combination of additives in the field of automotive repair paint, to understand how TAG additives optimize coating performance and construction convenience through high-performance additives, and enhance the beauty of paint films.

1、 The entire process of repairing paint
The solution for the entire industrial process is different from the “traditional single coating solution”. Systematic solutions have very high requirements for the performance matching and balance between various coatings. The solution of a single coating is no longer sufficient to meet the current market demand for internal rolling. Taige additives provide customized development of additives and full process cost reduction and efficiency improvement solutions.

The entire process of car repair can be roughly divided into six steps: first, remove the old coating or polish the damaged coating, thoroughly remove the oxidized paint surface/rust, and expose the metal substrate. Then, spray 2K epoxy primer and fill it with atomic ash putty to meet the requirements of adhesion and foundation flatness. Next, spray the intermediate primer to further level the base surface, and apply the colored topcoat multiple times (with flash dry intervals between each layer) for coloring. Finally, spray the topcoat to achieve a mirror gloss.

 

2、 Guidelines for Mixing Additives
01. Epoxy Primer
Different coatings have different effects, and additives can enhance the corresponding performance of the coating, meeting requirements such as color, adhesion, and mirror flow. Epoxy primer mainly strengthens the basic adhesion and serves as a barrier for corrosion and rust prevention, sealing off abrasion marks and isolating atomic ash, migratory substances of old coatings, etc. The recommended amount of additives for the basic formula is as follows:

Actual shooting of paint/coating status

In this epoxy primer, Teg additive Tech-5035 dispersant has excellent viscosity reduction and storage stability, Tech-1570 leveling agent has a good improvement in leveling performance, and Tech-7720 can ensure the adhesion and sealing of the primer. The various additives complement each other.

 

02.Atomic ash putty

The core function of atomic ash putty is to provide structural filling and surface leveling treatment for damaged car bodies. The recommended amount of additives for the basic formula is as follows:

Actual shooting of paint/coating status

In this atomic ash putty, the TAG additive Tech-544 dispersant exhibits good viscosity reduction and excellent storage stability, allowing the atomic ash putty to meet the smoothness of scraping, while Tech-428 effectively suppresses and eliminates bubbles at high powder filling levels, reducing the impact of bubbles on the filling and sealing properties of the atomic ash putty.

 

03.Intermediate primer

Intermediate primer (also known as “second coat primer” or “second coat slurry”) directly affects the durability, aesthetics, and construction efficiency of the paint surface, and has requirements for continuity and compatibility. The recommended amount of additives for the basic formula is as follows:

Actual shooting of paint/coating status

In this intermediate primer, the TAG additive Tech-598 dispersant has excellent viscosity reduction, good storage stability, and multiple additives work together to ensure the adhesion and aesthetics of the paint film.

 

04.Color paint topcoat

Color paint and topcoat are the core coatings that determine the appearance of a vehicle. Their function is not only to provide color, but also to provide decoration, protection, and functionality. The recommended amount of additives for the basic formula is as follows:

 

Actual shooting of paint/coating status

The combination of Tech-1601 and Tech-2550 leveling agent can achieve excellent leveling and fullness. At the same time, it can also be observed that the use of Tech-58687 dispersant to disperse organic pigments results in a bright and visually striking hue.

 

05.Glossy topcoat

The topcoat in automotive repair paint is the final layer of the coating system, mainly used to provide comprehensive protection for the paint surface and enhance its aesthetic appeal. The recommended amount of additives for the basic formula is as follows:

Actual shooting of paint/coating status

Initial leveling (left)             and              posterior leveling (right)

In this glossy varnish, the use of TAG additives Tech-1068, Tech-1651, and Tech-2306 leveling agents can result in excellent initial and post leveling of the coating, while also providing excellent clarity and fullness.

 

3.summarize

TAIGA, as a professional additive brand, has been practicing the service concept of “customer-centric” for more than ten years. With advanced synthesis technology and a rich product line, it provides effective, systematic, and safe additive solutions for the automotive coating industry, supplemented by advanced supply chain technology and integrated solutions for rapid response, empowering the automotive industry.