Operating background
Corrosion protection planning for tanks, pipework, heat exchangers and associated steelwork.
Solutions
Pipeline and Tank Corrosion Protection
Review the exposure medium, temperature, existing coating, welds, supports, drainage and access before planning repairs or recoating.
Why the problem develops
Moisture and chemicals concentrate at welds, supports, insulation interfaces and drainage details, where defects spread beneath old coatings.
Application conditions
- Industries
- Petrochemical & Refining · Chemical & Fertilizer · Power & Energy
- Equipment
- Storage tank · Pipeline · Pipe rack · Heat exchanger · Steel support
- Main exposure
- Identified acids, alkalis, salts, condensate or process chemicals
- Temperature characteristic
- Review both medium and substrate temperature
- Operating mode
- Splash, vapour, immersion, wash-down or condensation
- Primary failure mode
- Permeation, blistering, pitting and loss of adhesion
- Application challenge
- Continuity at welds, joints, edges, supports and liquid traps
Common signs
Permeation, blistering, pitting and loss of adhesion
Moisture and chemicals concentrate at welds, supports, insulation interfaces and drainage details, where defects spread beneath old coatings.
Protection objectives
- Interrupt contact between medium and substrate
- Strengthen details and transitions
- Support traceable inspection
Recommended coating system
Corrosion protection planning for tanks, pipework, heat exchangers and associated steelwork.
Solution design principles
- Confirm substrate, medium, temperature and failure mechanism before selecting a system.
- Treat edges, welds, joints, supports and inaccessible zones as separate design details.
- Define inspection, repair access and return-to-service requirements with the application plan.
Surface preparation
- Record contamination, corrosion, defects, old coating and access before cleaning.
- Remove oil, dust and unsound material; prepare cleanliness and profile to the reviewed procedure.
- Verify retained coating compatibility and use a representative trial area when the existing system is uncertain.
Key quality controls
- Record preparation condition and environmental readings.
- Inspect continuity at edges, welds, joints and shadow zones.
- Keep batch, layer, curing and inspection records traceable.
Common mistakes
- Selecting by product name before confirming the failure mechanism.
- Overcoating contamination, moisture or weak existing layers.
- Ignoring details, curing conditions or the maintenance window.
Inspection, maintenance and repair
- Inspect representative high-risk zones on a defined schedule and compare like-for-like records.
- Repair local defects only after removing the cause and defining sound boundaries.
- Escalate widespread cracking, leakage or substrate loss for engineering review.
Application workflow
Understand equipment and service
Record the equipment, substrate, medium, temperature pattern and access window.
Identify the failure mechanism
Separate corrosion, wear, heat flow and application causes before selection.
Define protection objectives
Define the required protection, inspection access and maintenance outcome.
Match the coating system
Match compatible layers to the confirmed substrate and operating exposure.
Control application and maintenance
Plan preparation, application controls, curing, inspection and later repair.
Suitable scope
Compatible substrates after the chemical medium and exposure mode are confirmed
Use limitations
No chemical-resistance claim is made without medium, concentration and temperature review
Recommended products
Acid & Alkali Resistant Coating
Barrier protection for compatible substrates exposed to identified acids, alkalis, salts or process chemicals.
Typical equipmentStorage tank · Pipeline
View product
High-Temperature Anti-Corrosion Coating
Protective systems selected for the actual temperature, thermal cycle, substrate and corrosive exposure.
Typical equipmentIndustrial kiln · High-temperature pipeline
View productFrequently asked questions
What details control pipeline and tank coating selection?
Confirm medium, temperature, internal or external exposure, substrate, old coating, welds, supports, insulation interfaces, drainage and maintenance access.
Can local defects simply be overcoated?
No. Determine the defect boundary and cause, remove unsound material and confirm compatibility before applying a repair system.
Why are welds and supports treated separately?
Geometry, retained moisture, stress, contamination and limited access can concentrate corrosion and make uniform preparation or coverage more difficult.
DAYU-X
Review the protection approach for your equipment
Describe the equipment, medium, operating temperature and failure signs so the protection direction can be assessed.