HRCSA coated dam gates can be fully submerged underwater following full cure (30 days max).
HRCSA coated steel can be buried immediately by following these procedures.
Chemically active HRCSA’s greatest feature is it’s ability to fully wet the steel substrate (eliminating undercutting) and due to it’s polar bonding characteristics, fill all micro voids on the steel substrate.
HRCSA also offers the ability to be applied onto salt free, light to medium rust.
This application was developed for the treatment of buried hydro tower legs which needed to be excavated, treated and backfield during 1- 8-hour shift.
HRCSA is elastomeric, simply cover the steel member you wish to place in the ground with a tar paper cover while the coating is still fresh and then add some coating around the edges to seal the open space at the top of the tar paper steel interface. The freshly coated and wrapped member was buried in the ground and left for a period of 10 months.
After 10 months it was excavated, removed from the ground, brought into the shop and the tar paper removed. The coating was not damaged, and the member was corrosion free. Some tar paper remained stuck to the coating, but the coating itself remained intact with no corrosion present on the steel member.
HRCSA is elastomeric, simply cover the steel member you wish to place in the ground with a tar paper cover while the coating is still fresh and then add some coating around the edges to seal the open space at the top of the tar paper steel interface. This test was done over the period of a year. The freshly coated and wrapped member was buried in the ground and left for a period of 10 months.
Managing REBAR
HRCSA Self-Priming Topcoat can be used for coating exposed rebar. Remove spalled concrete. Pressure wash with salt remover – let dry. Apply HRCSA Self-Priming Topcoat on the exposed rebar and cover with concrete (no need to wait for cure).
Might you have a specific steel corrosion problem in mind? Enquire now!
