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SPECIALIST COATINGS


FEATURE SPONSOR


MULTI-FUNCTIONAL CORROSION INHIBITING, LOW FRICTION & RELEASE COATINGS


Corrosion whether it be rust, chemical or galvanic is a key concern in many industries where components are exposed to harsh environments


Within the Marine Energy sector, corrosion protection is of paramount importance as the negative impacts do not only prove to be costly but can also cause major problems in the performance of energy devices to the point of premature failure.


STUDY A recent IMPACT (International Measures of Prevention, Application and Economics of Corrosion Technologies) study, initiated by NACE International in 2016, estimates the global cost of corrosion to be US $2.5 trillion. A cost that accounts for corrosion problems experienced across the market sectors, the preventative actions of corrosion resistant coatings only impact on a small proportion of this cost.


However, in a large scale, fast- paced, competitive environment, the reduction of maintenance through the optimisation of component capabilities


32 www.wavetidalenergynetwork.co.uk


and increased uptime have a significant impact on performance and energy generation as a whole.


COATINGS INDUSTRY EXPERIENCE With over fifty years’ experience in the coatings industry, Whitford manufacture the largest, most comprehensive range of high-performance functional coatings in the world. Whitford’s Xylan®


& Xylar®


coating ranges and their corrosion resistant properties have a proven long- term performance pedigree within the energy market from specifications and long-term in-service use through to the creation of real-life test sites created with industry partners and stakeholders.


An industry that relies on longevity and the need for certainty from all components and parts of the supply chain, Xylan®


& Xylar® corrosion-


resistant coatings continue to help wave & tidal device developers combat the corrosion and long term lubrication


problems they face in both critical and non-critical component areas.


Improving corrosion resistance in three ways…


1. Inhibition – The use of select pigments inhibits the corrosion reaction and promotes the formation of a stable, passive oxide layer on the metal surface


2. Sacrificial protection – Primers highly filled with anodic metallic pigments corrode more readily than the base metal – the by-product of sacrificial corrosion fills the pores within the coating, reducing the corrosion process


3. Use of inert fillers – Increase the length of the diffusion path of the necessary components of corrosion – providing a barrier to oxygen and moisture, the corrosion reaction is greatly reduced


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