Epoxy
Asphalt Mastic
Epoxy Asphalt Mastic is a premium two-component, high-build, asphalt-modified epoxy mastic coating developed to protect steel and concrete exposed to some of the harshest industrial and immersion environments. Formulated without coal tar, it provides all the proven protection traditionally associated with coal tar epoxy systems while eliminating the health, environmental, and application concerns linked to coal tar technology. The surface-tolerant, self-priming formulation delivers exceptional resistance to corrosion, water immersion, sewage, crude oil, chemical splash, and aggressive industrial atmospheres. Designed for long-term protection of buried, submerged, and splash-zone structures, Epoxy Asphalt Mastic provides a durable barrier against moisture ingress, chemical attack, abrasion, and soil stress, making it ideal for infrastructure, wastewater, mining, petrochemical, and heavy industrial applications.
Available in 5L & 20L kits.
Features & Benefits
- Coal tar-free epoxy mastic technology
- Two-component chemically cured system
- High-build protective coating
- Surface-tolerant formulation
- Self-priming on many substrates
- Excellent corrosion resistance
- Outstanding fresh and saltwater immersion resistance
- Excellent resistance to sewage
- Excellent resistance to dilute acids and alkalis
- Resistant to crude oil
- Resistant to liquid fertilisers
- Excellent abrasion resistance
- Excellent flexibility after prolonged exposure
- High resistance to soil stress
- Suitable for steel and concrete
- Suitable for immersion and underground service
- Excellent chemical splash resistance
- Reduced toxicity compared to coal tar epoxies
- Excellent long-term durability
- Easy application by brush, roller, or spray
Intended Uses
Epoxy Asphalt Mastic is specifically engineered for severe-duty industrial environments where long-term protection against immersion, corrosion, chemicals, and aggressive service conditions is essential. The coating performs exceptionally well on buried pipelines, underground storage tanks, wastewater treatment infrastructure, process plants, bridges, and concrete containment structures subjected to continuous moisture or chemical exposure. Its excellent adhesion to both steel and concrete, combined with outstanding flexibility and abrasion resistance, makes it a preferred solution for infrastructure operating in highly corrosive environments where conventional protective coatings may fail prematurely. It is also suitable as a lining for concrete tanks and reservoirs operating within a pH range of 4–10.
Typical Applications:
- Underground steel storage tanks
- Buried steel pipelines
- Water treatment plants
- Wastewater treatment facilities
- Sewage infrastructure
- Petroleum refineries
- Chemical processing plants
- Pulp and paper mills
- Fertiliser plants
- Power generation facilities
- Underground mining infrastructure
- Coal mines
- Salt mines
- Bridge substructures
- Bridge pilings
- Marine pilings
- Concrete basins
- Concrete pits
- Concrete reservoirs
- Industrial containment structures
- Steel process equipment
- Concrete tanks (pH 4–10)
Technical Information:
- Product Type: Asphalt Modified Epoxy Mastic
- Technology: Coal Tar-Free Epoxy
- Configuration: Two Component
- Colour: Black
- Finish: Semi-Gloss
- Mixing Ratio: 4 : 1 (Base : Activator)
- Activator: Epoxy Activator Asphalt Mastic
- Induction Time: 20 Minutes
- Density: 1.5 kg/L
- Volume Solids: 70%
- Recommended DFT:
- Atmospheric Exposure: 150–200 μm
- Immersion/Underground: 300–400 μm - Coverage: 4.66 m²/L at 150 μm DFT
- Number of Coats: 1–2
- Application Methods:
- Brush
- Roller
- Airless Spray
- Conventional Spray - Dry Heat Resistance: Up to 80°C (Non-Continuous)
- Pot Life:
- 16 Hours @ 10°C
- 10 Hours @ 15°C
- 8 Hours @ 20°C
- 5 Hours @ 30°C
- 4 Hours @ 35°C - Airless Spray Tip: 21–31 Thou
- Minimum Spray Pressure: 150 Bar
- Thinner: SA65 Thinners (0–20%)
- Pack Sizes: 5L & 20L
- Shelf Life: 12 Months
Colours & Finishes
Black
Please Note: Colour swatches and illustrations displayed are only to be used as a guide and can vary from the original.
