Coatings Session 1
 
16 August, Tuesday - Selangor 1 Room - 1:30pm - 3:15pm

Chair : Raymund Joseph Toledo, PPG

Ratio Control in Plural Component Coating Application

16 August, Tuesday - Selangor 1 Room - 1:35pm - 2:05pm

Bio of Speaker

Abstract

Plural Component Coatings applied by specialist equipment are usually 100% solids and range typically between 1:1 and 6:1 by volumetric mix ratio. The utilization of specialist coating equipment can make this process more economically viable and reduce down time and wastage typically associated with standard pre mix application due to short pot-life and this may even be possible.
The most important factor is control of mix ratio and specialist monitoring equipment may be installed to equipment to monitor this though often at great expense and complexity not welcomed
by typical applicators. Specialist equipment knowledge and training is required and this is the Achilles heel of the application.
Available technical skills may be difficult to find and a balance is required between operability and complexity.
An understanding of these factors and the types of technology for monitoring material and options is vital.
This paper seeks to outline the options risks and returns of these matters.

Replica Tape - Relating 3 Surface Profile Parameters to Pull-off Adhesion

16 August, Tuesday - Selangor 1 Room - 2:10pm - 2:40pm

Bio of Speaker

Abstract

Name:  David Beamish
Title / Position:  President
Company:  DeFelsko Corporation

​DAVID BEAMISH is President of DeFelsko Corporation, a U.S. manufacturer of hand-held test instruments sold globally. He is a Registered Professional Engineer with more than 28 years’ experience in the design, manufacture, and marketing of these instruments in a variety of international industries including industrial painting, quality inspection, and manufacturing. He conducts training seminars and is an active member of various organizations including NACE, SSPC, ASTM and ISO.
Steel surfaces are frequently cleaned by abrasive impact prior to the application of protective coatings. The resultant surface profile is comprised of a complex pattern of peaks and valleys which must be accurately assessed to ensure compliance with job or contract specifications. 
But is profile height, the most common measured parameter, a good indicator of long term coating performance? 
Other measures of surface texture can be obtained using electron or confocal microscopes or interferometric laser profilers, but these large, complex, expensive instruments are unsuitable for field use. 
Corrosion professionals simply want to know if they have a good surface upon which to apply a coating. Has the surface been prepared suitably? Is it acceptable to the customer? They want measurable objectives and adjustable blast parameters with which to meet those objectives. 
The solution lies with replica tape. It is not widely known that surface replicas obtained using this 40 year old product contain far more information than just peak height as measured by a micrometer. Significant data is available through digital imaging. 
This paper reports on remarkable recent testing that compared numerous profiles with pull-off adhesion. 40 steel panels were blasted with a selection of media, coated, then tested for pull-off adhesion. The blast profile on the test panels was measured with a low-cost replica tape imager, a stylus profilometer, and a complex, laboratory-grade confocal microscope.  
The various profile measurement techniques are compared, and theories are presented on whether these measured parameters are good indicators of long term coating performance.

Managing Atmospheric Corrosion through an effective Coating Condition Inspection and Maintenance Program

16 August, Tuesday - Selangor 1 Room - 2:45pm - 3:15pm

Bio of Speaker

Abstract

Name: Rehan Ahmed
Title / Position:  
Company:  PETRONAS Carigali

Rehan’s area of focus has been to develop and explore new and emerging technologies in the field of Coating, Corrosion, Insulation RBI approach and proposing solutions to the challenges which come along with maintaining a very large Onshore(Coastal) and Offshore Facility, ensuring optimal performance and plant reliability, which in turn will translate into Gas, Condensate and other derivative deliverability.
His profile also includes development of Cathodic Protection monitoring system to all underground structures and pipelines, in addition to rehabilitation of Sea Water intake and outfall structures.
He has also worked on developing long term corrosion control measures including thermally sprayed metals, and developing his expertise in the field of chemical inhibition in open and closed loop cooling water systems, and boiler feed water chemistry
He is currently heading the Materials Corrosion and Inspection (MCI)  team in Operations Excellence Department in Petronas Carigali and is engaged in improving on current MCI practices being followed in that organisation