Double Shield 3.3

Double Shield 3.3 is a combination of two different layers of material: zinc tape with conductive adhesive, which acts as a sacrificial anode, and an HDPE carrier film, which provides external sealing and serves as a barrier to physical and chemical protection.
The result is a unique and effective product that provides active cathodic and physico-chemical passive protection for metal surfaces.
Double Shield 3.3 self-adhesive corrosion protection tape is an innovative technology based on a double active-passive protective barrier. It is designed to protect iron, steel, aluminum and light alloy surfaces against corrosion.
Active protection: provided by the sacrificial action of zinc tape with high purity zinc content (>99.95%). Thanks to the electrically conductive adhesive, which provides a positive electrical connection between the metal surface and the zinc, the zinc tape acts as a sacrificial galvanic anode.
Passive protection: provided by the top layer bonded to the zinc film of the membrane, made of polymer-modified bitumen with a supporting HDPE film. This layer perfectly adheres to the zinc, sealing and protecting it from external influences and mechanical damage.
Chemical protection: the special composition of the outer layer provides resistance to all aggressive substances that naturally occur in soils.

Tape structure

High purity zinc strip (>99.95% zinc chemical mass)
Nominal thickness - 0.08 mm.
Glue (adhesive) thickness - 0.025 mm
HDPE sealing membrane - 0.1 mm
Siliconized paper

Special advantages

Active cathodic protection
Passive protection against external influences and chemicals
No cathodic protection costs
Flexible, tear-resistant and cold-resistant
Resistant to water and heavy rains
Minimal surface preparation
Long-lasting surface protection, virtually eliminating subsequent maintenance
No solvents
Does not contaminate groundwater
Withstands continuous operating temperatures up to +70°C
Easy to apply
Environmentally safe and resistant to all aggressive substances contained in the soil

Area of application

Underground pipes
Street lighting poles
Underground steel tanks
Ground-to-air transitions for all metal structures
Welded seam areas on underground pipes
Protection of underground structures against ground moisture (capillary water) and seepage water

Related products

Metapress Zinc-o-fix GSCslk Super Anode-internal zinc anode