Product
World's leading self drilling anchor bolt manufacturer.
Duplex Coating Rock Bolt
Introduction:
Duplex coating rock bolt is a supporting method with better anti-corrosion effect, which combines hot-dip galvanizing method with epoxy coating method together, which hardens the surface and prevents coating from peeling off.
Feature:
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.
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.
Technical data:
| Category | Type | Ultimate Tensile Strength Mpa | Yield Strength Mpa |
Hot-dip galvanized zinc coating thickness(μm) |
Epoxy Layer Thickness （μm） | Thread Standard |
Executive Standard |
| Hot Rolled Ribbed Rebar | D25 | 630 | 500 | ≥70 | ≥60 | GB/T1499.2-2007 | 1.Hot-dip galvanizing meets ISO1461 2. Epoxy coating: bending properties meet ISO1519, impact properties meet ASTMD2794, adhesion meet ISO2409:2007 |
| Hollow Bar | R25N | 730 | 550 | ≥70 | ≥60 | ISO10208 | |
| Hollow Bar | R32N | 700 | 580 | ≥70 | ≥60 | ISO10208 |
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