Custom Protective Coatings
In general, regular expandable rock bolts are not resistant to corrosive environments. To alleviate this problem in mining and tunneling applications, DSI Underground is using a special coating that isolates and actively protects the steel. Neither coating interferes with normal installation procedures.
Zinc Epoxy Coating
Zinc Coated OMEGA-BOLT® rock bolts are recommended for mid-term support in tunneling, civil engineering and mining applications, where non acidic to slightly acidic corrosive environments can be expected.
This coating consists of a zinc rich epoxy coating that acts as a physical barrier as well as a galvanic protection against corrosion.
Product Application
- High Humidity or ground water
- Alkaline (low pH)
- Basic (high pH)
- High Abrasive Environment
Polymer Acid Impervious Coating
Polymer coated OMEGA-BOLT® rock bolts are endorsed for mid-term support in tunneling, civil engineering and mining applications, in most environments,
where highly acidic corrosive environments are found. This polymer coating creates a physical barrier that is impenetrable by most acids, bases, alkalizes and highly electronegative solutions. This includes but is not limited to sulfuric acid, hydrochloric acid and sodium hydroxide. This coating is also highly abrasion resistant. Product Application
where highly acidic corrosive environments are found. This polymer coating creates a physical barrier that is impenetrable by most acids, bases, alkalizes and highly electronegative solutions. This includes but is not limited to sulfuric acid, hydrochloric acid and sodium hydroxide. This coating is also highly abrasion resistant. Product Application
- Highly Acidic and Basic Solutions (H2SO4, HCl, NaOH)
- High Alkaline Solutions
- High Abrasive Environment