Purified Tannin closed loop treatment - recommended by OEM's for protecting aluminum boiler systems.

All too often, proper treatment of closed loops is overlooked, leading to loss of efficiency and equipment failure.

Say Yes to Chemco and Protect your Closed Loop

Purified Tannin allows you to target the optimized pH to get great protection of multi-metal systems.

Closed Loop Water Treatment Advancement

Additional Benefits
Purified Tannin Molecule
Discover the R&D behind the Purified Tannin technology provided by TGWT - The Tannin Guys®
Purified Tannin Products are Green
Purified Tannin products are composed of mostly natural ingredients derived from tree parts. It is Green, sustainable chemistry that is safer to use and safe for the environment.
Direct Heat Exchanger Protection
Purified Tannin protects mixed metallurgy closed loops, with direct protection of aluminum boilers and heat exchangers.
Pulp and Paper, Chemicals and Petrochemicals, Textile, Dairies, Rendering, Breweries, Distilleries, Agri-Food, Hospitals, Institutional, Rubber, Cogeneration and Pharmaceutical
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Partnership for Aluminum Boilers Water Treatment

Harsco Industrial Patterson-Kelley, market leader and major producer of heat transfer equipment and TGWT, leader in green chemistry, have joined forces to put together a successfull and sustainable water treatment program for aluminum condensing boilers.  

See more details their joint website: www.AluminumBoilers.com

Traditional closed loop treatment utilized corrosion inhibitors and pH buffering for system protection. Purified Tannin advanced technology utilizes direct film protection for multi-metallurgy systems, including aluminum.
Unique benefits obtained from using Purified Tannin closed loop treatment are:

Corrosion Inhibitor

pH Adjustment

General Dispersant

pH Buffering

Optimize Heat Transfer

Direct Aluminum Protection



Safer, Green & Natural

Non Molybdate or Nitrite



We have several systems treated by the purified tannins. We have been satisfied by services offered, their expertise, and product efficiency.

Institutions: University

Institutions: University

Closed loop systems are treated with TG 3304, a green technology Tannin based corrosion inhibitor. We are very pleased with the services offered, and the quality of their products.

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