Project Profile – Caustic Sump Lining

Project: Ethylene Plant-Caustic Sump

Location: Joffre, AB

Service Provided: Seal and Line Sump Interior

Date / Duration: November 2015

The Problem:

Dalco prides itself on listening to its clients and then working to find solutions to their unique corrosion challenges. Client came to Dalco with a caustic concrete sump that was experience significant drops in fluid levels. It was determined that over time the concrete sump had become porous and started to leak into the ground.

The client required Dalco to provide an economical solution that would encapsulate the containment and protect against further corrosive and erosive attack from the caustic contents. The application procedure needed to be performed in a short time frame to minimize equipment shut down time.

The Solution:

Dalco worked with client engineers and product manufacturers to design a trench liner that would extend the service life of the concrete sump.

After the sump was power wash cleaned and left over night to dry, Dalco abrasive blast cleaned the substrate with Sponge-Jet dustless blasting technology. The prepared concrete was then primed with SolarSeal UV cured polyester resin based primer. This was followed by the installation of SolarTech UV cured glass reinforced polyester resin based laminate sheets over top of the primed substrate. The laminate and primer were then cured with a series of high powered UV lights. The 100% solids Resimac 511 Ultra Chemical Epoxy Novalac was then applied over the laminate. This top coat was spray applied to a final film thickness of 25-30mils. The product was then force cured with forced hot air.

*The final product was a completely encapsulated sump that was installed and returned to service in 5 days (10 shifts).

Author Dalco - A BrandSafway Company

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