Engineers India Ltd, ISPRL crude oil storage, Padur, Udupi district
Thermal spray aluminium coating on the strategic crude oil storage at Padur. Mythri is an Engineers India approved vendor for TSAC.
Corrosion Protection in Mangaluru
We protect steel on the Mangaluru coast as a single system comprising blasting, zinc or aluminium metal spray, sealer and paint.
- Blasting, metal spray, sealer and paint
- Zinc and aluminium, 175–200 µm
- Test records with every project
Protection Systems for Mangaluru Steel
Steel in Mangaluru faces salt from the Arabian Sea throughout the year and wetting during the south-west monsoon, from roughly June to September. Near the refining and fertiliser belt it also meets chemical fumes. Paint alone is tested by these conditions every season, and once the film breaks, salt reaches the steel.
Three protection systems are available. Blasting with a paint system suits steel that is easy to repaint. Blasting, thermal spray zinc or aluminium and a sealer suit steel that is costly to reach. A duplex system adds paint over the sealed metal for colour and additional life.
Zinc protects steel sacrificially in most atmospheres. Aluminium is chosen where heat, chemicals or sea air are severe, and is expected to last 10 years or more. We recommend a system from the environment, access and design life, and then apply all of it.
Where the Complete System Is Specified
Crude oil and product storage
Tank shells, roofs and pipe racks near the port and refinery belt, where recoating means taking a tank out of service.
Power plants on the coastal belt
Chimneys, ducts, boiler structures and cable trays that face flue heat on the inside and sea air on the outside.
Cashew and food processing plants
Structural frames, sheds, boiler stacks and process steel standing in warm, humid, salty air through the monsoon.
Ports, jetties and shipyards
Jetty steel, cranes and shipyard structures in salt spray, where recoating is slow and disrupts operations.
Planning a Mangaluru Project
We begin with the structure, its environment, access and your shutdown window, and then propose the system and thickness. A team travels from Bengaluru with blasting, arc spray and airless paint equipment, and each blasted section is metal sprayed in the same shift, then sealed and painted in sequence.
Metallizing needs no curing, so the full thickness can be applied in one shift, which helps within a short dry window. Smaller items such as flanges, platforms and fabrications can be sent to Peenya or Dabaspet and returned finished. Thickness, adhesion and paint film readings are recorded.
- Thermal spray arc rectifier and gun sets
- 15 sets
- Airless spray units
- 5 units with pressure pots
- Metal spray thickness
- 175–200 µm, measured before release
- Zinc and aluminium standards
- IS 5905 · IS 2590 · BS 2569
- Thickness and adhesion
- IS 3203 gauge, ASTM D4541 pull-off, cross-hatch
- Paint checks
- DFT on every coat, humidity and dew point
Work on the Karnataka Coast
Frequently Asked Questions
Is paint alone sufficient for coastal steel, or should metallizing be added?
Paint alone suits steel that can be repainted easily at planned intervals. Where repainting involves scaffolding, work at height or a shutdown, metal spray with a sealer, with or without paint, reduces how often it is needed.
Should zinc or aluminium be used near the sea?
Both metals are used on the coast. Zinc is sacrificial and suits most atmospheres. Aluminium is preferred for marine, chemical and hot service such as chimneys. We follow the choice in your specification, or recommend one from the conditions.
Which test records accompany a coastal project?
Blast grade and surface profile, metal spray thickness to IS 3203, pull-off adhesion to ASTM D4541, and dry film thickness on every paint coat. They are supplied with the project.
Can you work to our consultant specification?
Yes. We follow the surface preparation, coat sequence, thicknesses and recoat times in your specification or the paint data sheet. Where there is none, we recommend a system for the environment and design life.
Send Details for a Coating Quote
Please share the structure, its dimensions and location, and your planned shutdown window. Our engineers will respond with a recommended method, schedule and quotation.
- Reply within one working day
- Drawings kept confidential
- Email acknowledgement
Thank you. Your enquiry has been received.
One of our engineers will contact you to discuss the requirement. A confirmation has been sent to your email address.