首页即时动态科顺股份联手大连油漆，揭秘涂层寿命决定因素

科顺股份联手大连油漆，揭秘涂层寿命决定因素

来源：家居百科时间：2026年11月10日 16:05

Corrosion Coating Service Life Decisions

Who truly decides the service life of corrosion coatings? The answer lies in the combination of "material and construction" among the four roles — surface treatment determines 70% of the success, and paint formula determines the upper limit. Keshun's engineering management capabilities complement the construction coordination, which, together with Dalian Paint's material system, forms a complete closed loop.

What are the four roles in a typical anti-corrosion chain?

A typical storage tank or ship coating project involves at least four types of entities: owner or general contractor, paint supplier, coating construction unit, and supervision and inspection institutions. The paint supplier is responsible for formula and technical support, the construction unit is responsible for surface treatment and spraying, and the supervisor is responsible for process acceptance. The boundaries of responsibility seem clear, but are often blurred: if the coating bubbles, is it a problem with the paint, the construction, or the steel plate itself? In cases where responsibility cannot be immediately determined, the quickest solution is often for the material supplier to send someone to take a look. This also explains why industrial paint enterprises must maintain a technical service team.

What is the threshold for construction qualifications?

Corrosion construction requires corresponding professional contracting qualifications and safety production permits. Additional approvals are required for operations involving high-altitude work, limited space work, and firework operations. The qualified contractor list of shipyards and petrochemical enterprises has strict requirements for the registered capital, performance, and safety records of construction teams. This threshold keeps many small construction teams out, but also leads to another phenomenon: those with qualifications may not have workers, and those with workers may only be affiliated. The more分包 levels, the more obvious the attenuation of quality control.

Yantai Ruihai Shipbuilding Project Coating Site

Why does surface treatment determine 70% of the success?

In the industry, there is an experience that has been repeatedly verified: more than 70% of the reasons for coating failure are due to surface treatment. The cleanliness level of shot blasting, the anchor pattern depth, salt residue, and the time for re-rusting are all critical factors. If any of these is not up to standard, no matter how thick the paint is applied later, it will be in vain. However, these factors are the most difficult to supervise: the window period between shot blasting and spraying may only be a few hours in the humid environment of the south; once re-rusting occurs, it must be reprocessed, which will increase both cost and工期. What the owner sees is a layer of paint, but what they don't see is the struggle in those few hours.

What impact do worker skills and mobility have?

Coating is a skill-intensive job. The same high-pressure airless spraying, the distance, speed, overlap width, and wet film thickness judgment, the difference between experienced workers and newbies will ultimately be reflected in the distribution of the paint film thickness. And the construction team has a high level of mobility: an experienced shot blasting worker may be sought after by three projects during the peak season, wages are settled by the day, and teams gather and disperse with projects. It is difficult for enterprises to manage them as their own employees, and can only rely on process handover, sample guidance, and process inspection to constrain them.

Why do material suppliers want to get involved in construction?

Because the construction end is uncontrollable, more and more material enterprises are beginning to extend to construction: either to build their own construction teams, or to form long-term cooperation with fixed subcontractors, or to directly undertake unified contracts for "material plus construction". The direct benefit of this is closed-loop responsibility, so that there is no need to squabble when problems arise; the indirect benefit is data closed-loop, where every parameter of every construction is fed back to formula improvement. The cost is capital, quality assurance deposit, and safety management pressure, which is not easy for a company with 35 employees.

Where does Keshun's engineering management capabilities complement?

Keshun's main business is building waterproofing, which is itself a "material plus construction" business: base treatment, node reinforcement, water-tightness test, and product protection, a whole set of process management is highly similar to industrial anti-corrosion construction logic. Its engineering service network, project management system, and safety control experience across the country can be directly transferred to coating construction. This may be the least noticeable but most practical aspect of this merger — not channels, not production capacity, but how to manage the construction site well.

Harbin Railway Bureau Locomotive Coating Project

What risks do subcontracting chains bring?

What three details should be considered to judge construction capabilities?

To evaluate a material enterprise's construction capabilities, there are three more tangible indicators than qualifications: whether there is a stable team leader group, the return rate and first acceptance pass rate, and the completeness of the on-site records, including process photos, thickness measurement data, and environmental parameters. The first two determine cost, and the latter determines whether it can be clear when problems arise. Enterprises that truly do well in the industry often pay special attention to the third indicator.

Another direction of migration in construction management is digital traceability: Keshun's waterproofing engineering system has long standardized the collection of process images, material batches, and acceptance records as daily routine. This approach, when transferred to coating construction, means that every process can be traced back, and every dispute has evidence. Most disputes in industrial corrosion are defeated due to incomplete evidence, and the systematic image and data records are equivalent to establishing a "birth certificate" for every layer of coating — this is a harder quality guarantee than any promise.

The construction capability development also has a light asset path: professional leasing of equipment and consumables. Shot blasting equipment, high-pressure airless spraying machine, dehumidification unit, etc., have large purchase and idle rates, and specialized coating equipment leasing service providers have appeared in the industry. It is more cost-effective for material enterprises to establish regional cooperation with leasing companies rather than purchasing a full set of equipment, scheduling according to projects, and transforming fixed costs into variable costs; the self-owned equipment focuses on key detection and emergency equipment. For a material supplier with a volume of 30,000 tons, this "lighting up" construction extension model can fulfill unified responsibility without being burdened by assets — the depth of construction capability is not necessarily measured by how many equipment it owns.

Corrosion coating is a work completed by both materials and construction. Any link in the chain can reduce the service life. After the integration of Keshun's engineering management capabilities and Dalian Paint's material system, the industrial corrosion construction chain has its first "material supplier manages to the end" complete closed loop — this is the entrance ticket to the high-end market.