FAQ - Tubesheet
How long does the process take?
Typically a tubsheet and waterbox coating project take anywhere from 10-21 days to complete.
How long will the coating protect the tubesheet?
Tubesheet cladding applications are capable of lasting in excess of 10 years. It is very common to have a tubesheet coating application look almost new even after 8 years in service. Many of our recently completed projects date back to the early 1990s.
Does Curran International offer a warranty on the tubesheet cladding?
Yes, Curran International offers a worldwide 5 year warranty on the epoxy tubesheet coating application.
Where can this service be performed and what is the lead time needed?
Curran International can perform tubesheet cladding (epoxy coating) around the world. In the United States and Canada, Curran will mobilize equipment and materials via equipment trailer and typically require 7-10 days notice. For international projects, Curran will mobilize via shipping container that will be shipped to the site and lead times are 30-45 days (depending on ocean freight schedules). Curran can also mobilize worldwide using airfreight for emergency tubesheet coating projects.
What type of coating is used?
A two part, 100% solids coating is used on condenser tubesheets and waterboxes.
Is there any curing time required before returning the
condenser/waterbox to service?
Yes, typically the cure time is 7 days (after the coating is complete). This varies with temperature and can be reduced with the use of heaters. Contact Curran for further questions about curing.