FINFOAM® FAQ

Frequenty Asked Questions about FINFOAM®

The following are some of the most common questions asked by customers inquiring about FINFOAM®.  If you have other questions regarding FINFOAM®, please don’t hesitate to contact us.

What type of water supply is required?

A fire hydrant or one-and-one-half inch water line is most effective for low pressure, high volume rinsing.


How long does set up take prior to cleaning?

Approximately 30 minutes.


How long does the service take?

Typically, one hour per fan.


How safe is the foaming chemical?

The FINFOAM® concentrate is 100% environmentally friendly, pH-balanced, non-toxic, and biodegradable. Our SDS includes our ALL ZEROS NFPA “diamond rating”, and of course is available upon request. In addition, the cleaning method itself is 100% safe on delicate fins because the entire process uses a high volume, low pressure method. Unlike other methods which can cause fins to bend or break, your equipment is completely safe in our hands.


How many cleaning technicians are in a team?

Two or three, depending on the size of the project.


Will I need to supply any manpower?

We will need someone to turn off and lock/tag the switches for each fan prior to cleaning.


How good is your safety record?

Excellent Our EMR data is 0.71 with 0.0 TIR and LWIRThe FINFOAM® service division has never had a recordable in our 15 years in business but we do not become complacent; with every job, safety is priority one.


What should we expect to see in temperature drop on the outlet side of the exchanger?

This depends greatly on just how dirty the fans are to begin with.  If they haven’t been cleaned in a long time you could expect a 40 to 60 degree temperature drop.  If you clean them annually we typically get 15 to 30 degrees lower temps on the outlet. Often this is short lived because operations cranks up rates to maximize throughput and profits.  Our record of 100 degrees increase in delta T was reported to us by an FCC process engineer in a refinery in the Midwest.

At Thompson, we are a family.