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Duplex Coating Rock Bolt

   
  • Duplex Coating Rock Bolt
Product Details

Duplex coating rock bolt adopts two corrosion-prevention measurements on the bolt surface, hot-dip galvanizing and epoxy coating which can prevent corrosion very well. It can be isolated with water and air to prevent the chemical etching and the rusting. So the preservative effect is very well as a permanent support. It is applied to conditions which are influenced by underground water such as road, railway, water conservancy project, sub-sea tunnel, etc.

 

Features

1. Thick hot-dip galvanizing coating, dense combination, high anti-corrosion and good toughness.
2. Benefits of epoxy coating:
1) High adhesive force to the steel substrate.
2) Excellent physical properties and chemical stability.
3) Excellent toughness and wear resistance.
4) A wide range of temperature adaptability.
5) Fine insulation and resisting anode dissolution.
3. Its anti-corrosion of the combination of two methods can keep more than 100 years.

 

Application

• Road
• Railway
• Water Conservancy Project
• Sub-sea Tunnel

 

Specifications
Size Ultimate Tensile Strength (KN) Yield Strength
(KN)
Hot-dip galvanized zinc 
coating thickness(μm)
Epoxy Layer Thickness (μm) Excecutive 
Standard
R32N 280 230 ≥70 ≥60 1.Hot-dip galvanizing: ISO1461

2. Epoxy Layer: ISO1519

 

Description

The duplex coating rock bolt adopts two corrosion-prevention measurements on the bolt surface, hot-dip galvanizing and epoxy coating which can prevent corrosion very well. It is mainly used in conditions which are influenced by underground water such as road, railway, water conservancy project, subsea tunnel, etc.

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