Duct Coating Technology

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Duct Coating Technology
By Adisak Mananas Henkel (Thailand) Ltd.Eastern
of Thailand.
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Objective

• To enhance maintenance techniques ,solve the
  Corrosion and Abrasion of Piping and Dust
  Collector System
• Applying identifies product solutions and
  techniques learn in Loctite Duct Coating
  technology

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Cause Of Problems

• Corrosion

• Pitting Corrosion
• Corrosive by which cavities or "holes" are
  produced in the material

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Cause Of Problems Cont.

• Corrosion

• Erosion Corrosion
• An acceleration in the rate of corrosion attack
  in metal
• The relative motion of a corrosive fluid and a
  metal surface

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Cause Of Problems Cont.

• Abrasion

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Solution to Improve

• Surface preparation
• Blasting SA 2.5-3
• Reinforcement by welding wire mesh on surface if
  require.
• Using composite product to rebuild the surface
  and coating to prevent the corrosion and abrasion

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Surface Preparation

• Surface preparation by Blasting SA 2.5 (Best
  Practice)
• To surface cleanliness.
• To surface roughness at least 75 micron.
• To make sure , the composite to stay fixed in
  place onto the substrate in order to perform at
  its design specification.

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Surface Preparation Cont.

• Blasting SA 2.5

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Surface Preparation Cont.

• Use wire mesh to reinforcement if we cant
  Blasting

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Product Selection Cont.

• To solve corrosion problem (Temp. 65-93 C)
• Product Nordbak Brushable Ceramic Grey/White

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Product Selection Cont.

• To solve corrosion problem (Temp. 93-288 C)
• Product Nordbak High Temperature Brushable
  Ceramic

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Product Selection Cont.

• To solve abrasion problem (Temp. not over 120 C)
• Product Nordbak Pnue Wear

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Product Selection Cont.

• Application Case History Dust Collector System

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Product Selection Cont.

• Application Case History Process Piping

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Benefit of our solutions

• Coating is wide range application in any rotating
  machine I.e. screw conveyor, blower etc.
• Improve reliability and service life for existing
  machine and can apply to new equipment also.
• Minimize repairing time.
• Reasonable cost and lower cost when comparing to
  upgrade equipment material.
• Smooth surface so easy to clean, inspect and
  repair.
• Many application for chemical resistance and
  abrasion.
• Able to service in high pressure and high
  temperature condition.