Rejuvenation

Coating, Repair and Cleaning for Hot-Section ComponentsFrom fluoride ion cleaning and damage-free coating removal to diffusion, MCrAlY and TBC re-application — we restore aero-engine and gas turbine hot-section components on our own production lines.

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R28-Sesl Ring

R28-Sesl Ring

R29 Blade

R29 Blade

R27 Structural Bracket

R27 Structural Bracket

R31  Blade

R31 Blade

Coating Systems

  • Ni-Al diffusion MTK-NAI / MTK-WAI high-temperature oxidation protection
  • Al-Si diffusion MTK-NAISi / MTK-JAISi
  • Cr-Al diffusion MTK-NAICr / MTK-WAIcr
  • Co-Al diffusion MTK-NAICo / MTK-WAICo
  • Pt-Al diffusion MTK-WPtAI
  • Ti-Al diffusion MTK-NAITi / MTK-WAITi
  • Platinum electroplating MTK-WPt
  • MCrAlY overlay MTK-WAI / MTK-RZ
  • Thermal barrier (TBC) MTK-TBC
  • Damage-free removal MTK-QC

Process routes: VPA · slurry · pack · CVD · painting · PVD

Hot Section Components

Components We Handle

Comprehensive coating and repair capabilities for all major hot-section components in aero-engines and gas turbines.

Turbine Blades

Blades, LPT blades, internal cooling channel coating

Guide Vanes

IGV, first- and second-stage HP guide vanes

Combustor Parts

Flame tubes, transition pieces, fuel nozzles

Shrouds & Sealing

Shroud segments, abradables, seals

Other Hot-Section Parts

Discs & spacers, cases, bearings

Our Process

Process Flow

A rigorous seven-stage process ensuring every component meets OEM specifications and industry standards before return to service.

01

Receiving & Incoming Inspection

Condition and damage documentation

02

Fluoride Ion Cleaning (FIC)

Removes oxides deep within cracks, blade kept intact

03

Damage-Free Coating Removal (MTK-QC)

Where re-coating is required

04

Brazing / Weld Repair

FIC provides the clean surface brazing demands

05

Coating Application

Pack, slurry, VPA, CVD or EB-PVD per specification

06

Diffusion Heat Treatment

07

Final Inspection & Release

Dimensional, coating thickness, microstructure

Core Strengths

Three Core Capabilities

The company possesses full capabilities across 3 core areas: coating materials, processes, and coating and cleaning equipment, which enables end-to-end control of delivery lead-time, consistent high quality, and production costs.

In-house equipment: 3rd-generation pulsed FIC · pulsed CVD · high-power EB-PVD (4 × 100 kW)

Discuss Your Requirements
Coating materials capability
Process engineering
Equipment manufacturing
Quality control

Track Record

Typical Repair Scope

Proven repair capabilities across major gas turbine platforms and engine families.

Project references and case details are available on request, subject to customer consent.

017FA flame tube (new & ordinary type)
02F-class stage 1 / 2 / 4 blade repair
03First- and second-stage HP guide vanes
04RB211 HP guide vanes
05F-class flame tube & transition piece repair
067EA AFT frame installation edge (universal & improved)
077EA basemount
Metalco Aviation Technology

Metalco Aviation Technology Ltd. | Coating, Repair & Cleaning for Aero-Engine and Gas Turbine Hot-Section Components Metalco is a high-tech enterprise specialized in surface treatment, repair and spare parts supply for aero-engine and gas turbine hot-section components, and in the R&D and manufacturing of FIC cleaning, pulsed CVD and EB-PVD equipment.

Contact Us

No. 41-30 Hunnan Middle Road, Hunnan District, Shenyang, Liaoning, China

inquiry@metalco-aviation.com

Unified Social Credit Code: 91210103MA0P41A594

© 2026 Metalco Aviation Technology Ltd.. All rights reserved.