BOW THRUSTER TUNNELS REPAIRED AND PROTECTED WITH BELZONA

KHIA ID: 8390
Industry: Marine (MRNE)
Application: SOS-Ships and Offshore Structures (SOS)
Substrate: Steel
Customer Location: Shipyard, TURKEY
Application Date: October 2020
Products:

Belzona 1311 (Ceramic R-Metal)

Belzona 1321 (Ceramic S-Metal)


Problem: Bow thruster tunnels surface has been damaged and metal loss occurred due to high cavitation environment of propeller projection area.
Photograph Descriptions

1. Bow Thruster Tunnels

2. Application of Belzona 1311 for Repairs

3. Application of Belzona 1321 Coating 

4. Cured Belzona 1321 Sponge Tested

Application Situation
Bow Thruster Tunnels of Ro-Ro Vessel
Application Method
Application was carried out in accordance with Belzona Know-How System Leaflets SOS-01 and SOS-02. Application surface was prepared with SA2½ grit blasting by shipyard. Then the surface has been cleaned. Belzona 1311 was used to repair severely damaged surface. Belzona 1321 was applied on the propeller projection area to provide protection for future erosion-corrosion damages.
Belzona Facts
Repairing damaged surfaces with Belzona is faster and cheaper than traditional methods. Belzona coating offers durable protection against seawater erosion/corrosion and cavitation environment. Belzona coatings extends the working life of the bow thruster tunnels.