Re-galvanising high-voltage electricity pylons Sanergrid 
GALVAGRID room temperature regalvanisation of a high voltage pylon by SANERGRID 
Comparison of rusted structures before and after application of GALVAGRID RUST ANODE PRIMER SYNERDIS 
GALVAGRID galvanic coating applied by brush, roller or spray SONEC supervision and expertise 
Metal pylon with traces of corrosion before GALVAGRID treatment 
Anti-corrosion maintenance work on high-voltage pylons of the EDF RTE ENEDIS SANERGRID type 
GALVAGRID galvanic anti-rust treatment
🔧Applied by spray or brush, our innovative galvanic coating GALVAGRID® uses a unique anodic protection technology, suitable for both new and ageing steel structures.
🔁 It gives a second life to weathered galvanised assets – or can even double their service life in the most demanding environments.
🌊Rated up to C5-H, it is ideally suited for coastal, saline, or highly corrosive zones.
In the project pictured, our client observed premature corrosion on a recently hot-dip galvanised structure due to unexpected on-site conditions. Thanks to GALVAGRID® RUST-ANODE PRIMER PYLONE™, the steelwork was re-galvanised in place, achieving :
⏳ A minimum service life of 50 years
⚖️Uniform zinc thickness across all surfaces
🔗Seamless fusion with existing zinc layers
🔩Protection against bimetallic corrosion at bolted joints
✅ Already proven across Europe and North America, GALVAGRID® technology is a true game changer for maintaining steel structures in high-voltage substations and switchyards.
📩 Get in touch to learn more or assess your re-galvanisation project.
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