NEW Approval for Corrosion Inhibitor

WTP’s best-selling Closed System Inhibitor, CW55M gains important new approval.

In 2017 BuildCert (now called NSF International) changed its closed system inhibitor test, under the Chemical Inhibitor Approval Scheme. The new test is considerably more challenging and introduces a step change in performance requirements under corrosive conditions. The test also requires all current products with an existing approval under the old test to be retested every 5 years.

This gives CW55M a unique benefit in that building operators with multi user occupancy such as residential, offices and retail space with multiple heating and chilled systems to be able to use one product across the whole estate. Thus, eliminating any cross-contamination issues caused where in the past multiple products would have been needed.

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