Client: Pharmaceutical Company
Project Brief: The Internal Coating of 1 No. Sectional GRP Water Retaining Structures
System Specification: Solvent Free Polyurethane
Completion Date: 21st October 2010
COVAC Contract Ref: 1003
Osmotic blistering of the GRP substrate due to water permeation can also lead to deterioration of the gel coat and, subsequently, a surface which is highly likely to harbour and promote the growth of micro-aquatic organisms.
These photographs show the internal surfaces of the structure, having been drained of water and prior to relining work commencing.
All failing mastic between the sectional GRP panels was cut back to a firm edge, prior to all the internal surfaces of the tank being lightly abrasive blast cleaned to remove any existing coatings and to promote optimum adhesion of polyurethane lining system.
All joints were treated to prevent leaks and allowed to cure.
The following photographs show the internal of the structure after being fully coated with solvent free polyurethane (grey), by means of plural component spray equipment.
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