Bitumen Epoxy, also known as Bitumen Modified Epoxy Coating, is a high-performance protective coating that combines the flexibility of bitumen with the exceptional adhesion and chemical resistance of epoxy resins. This unique hybrid formulation delivers superior waterproofing, corrosion protection, and long-term durability in harsh environmental conditions. It is widely used in industrial, marine, and construction sectors where steel and concrete require strong, flexible, and chemical-resistant protection.
What Makes Bitumen Epoxy Special
Unlike conventional bitumen coatings, Bitumen Modified Epoxy offers excellent mechanical strength and strong bonding to various substrates, including steel, concrete, and masonry. The epoxy component enhances hardness, adhesion, and resistance to water, chemicals, and oils—while the bitumen contributes flexibility, waterproofing, and UV resistance.
This combination creates a coating that not only protects structures from moisture and corrosion but also tolerates thermal expansion and mechanical stress. It is especially valuable in areas exposed to water immersion, acidic soil, or chemical splash zones.
Chemical Composition and Identification
Chemical Name: Bitumen Modified Epoxy Coating
Other Names: Epoxy Bitumen Coating, Bituminous Epoxy Paint, Epoxy Asphalt, Bitumen Epoxy Resin
CAS Number: 8052-42-4 (Bitumen component) / 25068-38-6 (Epoxy resin)
HS Code: 2715.00.00 (Bituminous mixtures based on natural asphalt or bitumen)
The product is typically formulated as a two-component system—Part A (Epoxy Resin) and Part B (Polyamide or Amine Hardener)—which are mixed before application to achieve optimal curing and film strength.
Usage and Applications
Bitumen Epoxy coatings are versatile and used in many demanding industries where waterproofing and corrosion resistance are critical. Key applications include:
Waterproofing Concrete Structures:
Used for basements, retaining walls, bridges, and tunnels, Bitumen Epoxy seals porous concrete against moisture ingress and prevents carbonation.Pipeline Coating:
Applied as a protective layer on steel pipelines, both underground and underwater, to resist corrosion from soil moisture, saltwater, and chemicals.Tank and Reservoir Protection:
Ideal for coating internal and external surfaces of storage tanks, reservoirs, and treatment plants due to its excellent resistance to water, salt, and chemicals.Marine and Offshore Applications:
Provides long-term corrosion resistance for ship hulls, docks, offshore platforms, and marine pipelines exposed to salt spray and immersion.Industrial Flooring and Foundations:
When applied on floors and foundations, it prevents chemical and oil penetration, making it suitable for factories, workshops, and warehouses.Roofing and Bituminous Membrane Systems:
Acts as a primer or intermediate layer under bituminous membranes to enhance adhesion and long-term durability.
Product Characteristics
| Property | Typical Value / Description |
|---|---|
| Appearance | Black or dark brown viscous liquid |
| Mix Ratio | Two-component system (resin + hardener) |
| Density | 1.2 – 1.4 g/cm³ |
| Solid Content | 65 – 80% |
| Drying Time | 4–6 hours (touch dry) |
| Full Cure Time | 7 days at 25 °C |
| Adhesion Strength | >2 MPa on concrete |
| Water Resistance | Excellent |
| Chemical Resistance | Resistant to alkalis, mild acids, and salts |
| Temperature Resistance | –10 °C to +90 °C |
Advantages of Bitumen Epoxy
Superior Adhesion: Bonds strongly to concrete, steel, and masonry.
Excellent Waterproofing: Creates a non-porous, impermeable film.
Chemical Resistance: Withstands mild acids, alkalis, oils, and saline environments.
Flexible and Tough: Absorbs mechanical stress and substrate movement.
UV and Weather Resistant: Suitable for both underground and exposed conditions.
Long Service Life: Extends the durability of coated surfaces by preventing corrosion and degradation.
These properties make Bitumen Epoxy an ideal choice for both new construction and maintenance projects.
How to Apply Bitumen Epoxy Coating
Surface Preparation:
Ensure that the surface is clean, dry, and free of oil, dust, or rust. Sandblasting or grinding may be required for steel or concrete.Mixing:
Combine the resin (Part A) and hardener (Part B) in the specified ratio and mix thoroughly for a uniform consistency.Application:
Apply the coating by brush, roller, or airless spray in one or two coats, depending on the required film thickness.Curing:
Allow the coating to cure for at least 24 hours before exposure to moisture, and 7 days for full chemical resistance.
Packaging and Storage
Bitumen Epoxy Coating is supplied in 20 kg or 25 kg sets, consisting of two components (resin and hardener). Store in a cool, dry area away from direct sunlight. The shelf life is typically 12 months in unopened containers.
Safety and Handling
During handling and application, wear suitable protective clothing, gloves, and eye protection. Ensure proper ventilation and avoid contact with skin or eyes. Refer to the Material Safety Data Sheet (MSDS) for detailed information.
Conclusion
Bitumen Epoxy stands out as a versatile, high-performance coating that delivers outstanding protection against moisture, corrosion, and chemical attack. Its combination of bituminous flexibility and epoxy toughness makes it ideal for pipelines, tanks, foundations, and marine structures exposed to harsh environments.
Whether for industrial waterproofing or structural protection, Bitumen Epoxy Coating ensures reliability, longevity, and exceptional performance—making it an essential solution for modern construction and infrastructure projects.