Wolftank
DOPA® double-wall tank lining
Turn a single-wall tank into a monitored double-wall tank, without replacing it.
DOPA® is Wolftank's patented lining system for converting a single-wall storage tank into a double-wall tank in place. Layers of structural epoxy and aluminium reinforcement are built up inside the existing steel tank, creating an interstitial space between the inner and outer walls.
That space is held under vacuum and watched around the clock by a leak detection system with web access, which puts the tank in the highest environmental safety class of EN 13160 (Class 1). Apex supplies, installs and services DOPA® linings for fuel stations in Lebanon.
Key features
- Converts single-wall underground tanks to double wall without excavation or replacement
- Vacuum interstitial space monitored 24/7, with remote access via the web
- Meets EN 13160 Class 1, the highest environmental safety class
- Certified to German DIBt and EN 13160-7:2016 for complete lining of underground tanks
- Layer build-up: sandblasted steel wall, structural epoxy, knotted aluminium layer, aluminium reinforcement, second epoxy layer and conductive top layer
- DOPA® 6N: lifetime extension of up to 30 years, single to double wall in 5-7 days
- DOPA® Lite: double wall in 3-5 days with no sandblasting and no expensive equipment
- No hot work and no flammable lining materials; resistant to all ethanol grades
- Site can stay open during the work
Product lines
What this range covers
DOPA® 6N
High-end method with structural reinforcement and up to 30 years of added tank life.
DOPA® Lite
Quicker method for air-tight tanks, with vacuum interstice and no sandblasting.
Specifications
Models and technical data
| System | Initial tank condition | Lifetime extension | Days to line a 30 m³ tank |
|---|---|---|---|
| EPOFLEX® single wall lining | Air tight, slight corrosion | 5+ years | 2-3 |
| EPOFLEX® single wall structural lining (lamination) | Leaking, highly corroded, with shape problems | 20+ years | 3-5 |
| DOPA® double wall structural lining | Leaking, highly corroded, with shape problems, failed double wall tanks (inner or outer wall) | 20+ years | 5-7 |
| DOPA® Lite double wall lining | Air tight, slight corrosion, failed outer wall of double wall tank | 20+ years | 3-5 |
Figures from the manufacturer's published documentation. Confirm the final configuration with Apex at quotation stage.
Request a Quotation
Get a quotation for DOPA® double-wall tank lining.
Tell us the quantities and the site. Apex prepares every quotation for the project, then supplies, installs and services the equipment in Lebanon.
More from Wolftank
Single-wall structural lining (EPOFLEX®)
Structural epoxy lining that reinforces and protects corroded single-wall tanks, biofuel compatible.
View product
FRP tank lining
Fibreglass-reinforced polyester rehabilitation of tanks using bilayer woven fibreglass.
View product
Leak detection systems
Vacuum and pressure leak detection to EN 13160 Class 1 for tanks, sumps, wells and pipes.
View product
Sump sealing
Abrasion-resistant sealing coatings that rehabilitate tank and dispenser sumps in 1-2 days.
View product