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Chimney Stack Internals

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Complication:

Most flue gases produced by the combustion of fuels contain contaminants that can condense into sulfuric, sulfurous, or hydrochloric acid droplets.
Flue Gas Dew Point Corrosion occurs when these aggressive acids condense on carbon and stainless steels in convection sections, flue ducts, and stacks
(Dew point corrosion is corrosion damage that occurs when the air reaches a temperature at which the evaporating and condensing rate of its moisture content are the same at a constant pressure. This is experienced when the air is humid, foggy, moist, sticky and misty)
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The amount of contaminants in the fuel is directly correlated with the concentration of the acid droplets, and therefore with the degree of corrosion.

Left unattended for 2 years, the chimney can face severe Wall Thickness Loss – causing the structure to become unsafe.

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Solution:

Duromar® HPL-4323 is a flexible epoxy novolac used for lining Chimney Stacks, secondary containment, ductwork or anywhere requiring better flexibility with extremely good chemical resistance.

Duromar® HPL-4323 can be easily applied using a singular spray technology and hence takes fraction of the time to coat large surface areas manually.

It has outstanding resistance to chemical, abrasive and temperature attacks even when applied at a minimal thickness level of 1mm.
It also has excellent bond strength across both concrete and steel surfaces. They are also flexible and can be built up to varying thickness levels.
The nature of an epoxy makes it extremely easy and quick to repair any damage that may have occurred to the protective lining.

Product Details:

Duromar® HPL- 323 is a Multi-functional epoxy with a uniquely modified cycloaliphatic amine hardener. It has outstanding resistance to chemical, abrasive and temperature attacks even when applied at a minimal thickness level of 1mm.

Key Features:

Increased asset life.

High Corrosion resistance

Excellent Adhesion

Flexible

Case Study 1

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Case Study 2

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