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Challenges Linked to Use of Hybrid Coatings in the Offshore Sector

Challenges Linked to Use of Hybrid Coatings in the Offshore Sector
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Polysiloxane (often referred to as ‘hydide coatings’) products have been one of the major technology platforms used in the European offshore sector mainly due ban on isocynate among several customers. The potential long-term performance of polysiloxanes coatings have also been a strong argument for this topcoat selection in NORSOK (501 – rev 5) systems. There have been several claim-situations with delamination in epically two-coat systems, but similar problems have also been seen on traditional NORSOK systems. 

Product Number: 41210-526-SG
Author: Anders Braekke
Publication Date: 2010
Industry: Coatings
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Polysiloxane (often referred to as ‘hydide coatings’) products have been one of the major technology platforms used in the European offshore sector mainly due ban on isocynate among several customers. The potential long-term performance of polysiloxanes coatings have also been a strong argument for this topcoat selection in NORSOK (501 – rev 5) systems. There have been several claim-situations with delamination in epically two-coat systems, but similar problems have also been seen on traditional NORSOK systems. The lack of adhesion and flexibility has been accepted as a major course for failure, but a multiple reasons for have been discussed as root-course for adhesion failure. Based on this insight new polysiloxane products have been developed with highest focus on long term flexibility and predictable adhesion. Hybrid coating with isocyanate/urethane curing mechanism have not been sold in offshore due to a zero tolerance regarding urethane / di-isococunates when heated.

Polysiloxane (often referred to as ‘hydide coatings’) products have been one of the major technology platforms used in the European offshore sector mainly due ban on isocynate among several customers. The potential long-term performance of polysiloxanes coatings have also been a strong argument for this topcoat selection in NORSOK (501 – rev 5) systems. There have been several claim-situations with delamination in epically two-coat systems, but similar problems have also been seen on traditional NORSOK systems. The lack of adhesion and flexibility has been accepted as a major course for failure, but a multiple reasons for have been discussed as root-course for adhesion failure. Based on this insight new polysiloxane products have been developed with highest focus on long term flexibility and predictable adhesion. Hybrid coating with isocyanate/urethane curing mechanism have not been sold in offshore due to a zero tolerance regarding urethane / di-isococunates when heated.

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