NA: cs@itwpp.com +1-855-489-7262 • EMEA: customerservice.shannon@itwpp.com +353 61 771 500 • itwpp.com
Problem:
At a coal power plant, chutes are used to transport coal
powder to the processing facility after crushing, screening, and
pulverizing the raw material. Transportation of coal
particulates was put to an abrupt stop when transfer chutes
began to suffer high levels of wear and abrasion.
The damage to the transfer chutes was caused by the buildup
of coal dust containing corrosive and abrasive chlorides. The
customer was seeking a durable epoxy coating that would
restore and protect the equipment so the plant could maintain
its high operating efficiency.
Solution:
The client turned to Devcon DFense Blok
coating and epoxy sealer for its high
performance and durability.
• Devcon DFense Blok Surface Wetting Agent was
applied to the surface of the chute as a primer,
providing additional adhesion and bonding strength.
• After applying the surface agent, Devcon DFense Blok
was then mixed via a common jiffy mixer to achieve a
final homogenous material of resin and hardener.
• Devcon DFense Blok was subsequently applied on
top of the primed surface of the chute.
• The industrial strength epoxy was then smoothed with
solvent to provide an easy to slide over surface that
not only help with the wear reduction, but prevent raw
material build up.
Application of Devcon Surface Wetting Agent
Smoothing chute surface with solvent
Power plant
Devcon
®
DFense Blok
®
Eliminates Abrasion in Coal Power
Plant Chute
The technical information, recommendations and other statements contained in this sheet are based upon good faith tests or
experience that ITW Performance Polymers believes are reliable, but the accuracy and completeness of such information is not
guaranteed. This information is not intended to substitute for the customers’ own testing. ©ITW Performance Polymers, October 2023.
Project Outcome:
4X Abrasion Resistance vs. Competitive Epoxy
Coating
One of the main requirements for the client was a coating and epoxy
sealer that would safeguard equipment against the abrasive coal dust
wear. After evaluating various industrial strength epoxies, Devcon
DFense Blok was selected as it helped protect the chute from abrasive
wear as well as reduced maintenance requirements in the coal powder
transport area.
Long-Lasting Protection
To further deliver on durability, this client was able to utilize the Devcon
DFense Blok Surface Wetting Agent, increasing the strength and
durability of the product solution. By taking these additional measures,
Devcon DFense Blok industrial strength epoxy will provide an even
longer lasting protection to the coal power chute.
Maintaining Plant Efficiency
In the power generation industry, efficiency is a key requirement to keep
up with demand for reliable electricity. Replacing the entirety of this
chute would have significantly increased repair time and potentially
increased risk to power output at the facility. With Devcon DFense Blok,
the chute was repaired in-situ, and operations resumed in a matter of
hours.
NA: cs@itwpp.com +1-855-489-7262 • EMEA: customerservice.shannon@itwpp.com +353 61 771 500 • itwpp.com
Application of Devcon DFense Blok