UNIQUE POLYMER SYSTEMS provides specialised protective solutions for critical infrastructure in the water industry. This case study details the successful protection of a water pump lining at a water processing facility in Italy using UPS 505 WAU WRAS APPROVED URETHANE.

At a water processing facility in Italy, the internal steel surfaces of a water pump were identified as needing protection from erosion and cavitation. To safeguard the pump and ensure compliance with potable water standards, a WRAS-approved protective coating was required.

The challenge was to apply a protective lining that would adhere effectively to the steel substrate and provide long-lasting resistance to the effects of erosion and cavitation, while also meeting the potable water safety standards.

UNIQUE POLYMER SYSTEMS provided a comprehensive protection solution using UPS 505 WAU. The application process involved the following steps:

Surface Preparation

- The internal steel surfaces of the pump were abrasive grit blasted to achieve an Sa 2.5 level of surface cleanliness with a 75-micron angular profile. This preparation ensured optimal adhesion of the protective coating. 

Application of UPS 505 WAU WRAS APPROVED URETHANE

- The prepared substrate was coated with two applications of UPS 505 WAU WRAS Approved Urethane, applied by brush or roller. The coating was applied to a nominal total dry film thickness of 750 microns, providing robust protection against erosion and cavitation.

External Surface Protection

- The external surfaces of the pump were coated with one application of UPS 405 EPC EPOXY PROTECTIVE COATING, followed by a single coat of UPS 509 UVST UV STABLE TOPCOAT.This provided additional protection against external environmental factors.

The application of UPS 505 WAU successfully protected the internal lining of the water pump from erosion and cavitation damage, ensuring long-term operational reliability. The additional protection provided to the external surfaces further enhanced the durability of the pump, making it well-suited for continued use in a potable water system.

This case study demonstrates the effectiveness of UNIQUE POLYMER SYSTEMS' protective coatings in maintaining the integrity and performance of water industry infrastructure. Our advanced materials and precise application techniques provided a reliable solution that extended the service life of the water pump.