Technical guides, standards and industrial comparisons
Articles signed by Hicham M, P Eng, PMP — practical guides, standards decoding (ISO 12944, API 653, NACE 2), material comparisons and field feedback. To help you specify, apply and extend the life of your coatings and repairs.
Service life of epoxy coatings in immersion: the 7 factors
An immersion epoxy coating can last 5 years or 25 years depending on conditions. Here are the 7 factors that make the difference — and how to optimize them to maximize your investment.
Total cost of ownership of a coating: ROI calculation
A coating's per-litre price says nothing about its real cost. A low-cost system lasting 5 years can cost 3× more over 20 years than a quality system lasting 25. Here is the math.
Repair in ATEX zones without hot work: the HSE guide
In a refinery or chemical plant, half the equipment sits in an ATEX zone — where welding is forbidden. Here is how to perform emergency repairs with cold-curing composites, safely.
API 653 and composite tank repairs: what you need to know
API 653 governs the inspection, repair and alteration of atmospheric storage tanks. Here is how composite repairs are framed under it, and what you must document to stay compliant.
Alumina ceramic vs AR steel: which to choose?
Alumina ceramic and AR (Abrasion Resistant) steel are the two dominant anti-wear solutions. But one does not replace the other. Here is how to choose by your wear mechanism.
ISO 12944 explained: categories C1 to CX
ISO 12944 is the global bible of steel structure anti-corrosion protection. This guide decodes the 6 atmospheric corrosivity categories and how to choose the right coating system.
Galvanic corrosion of heat exchangers: causes and prevention
The junction of cupro-nickel or titanium tubes rolled into a carbon-steel tube sheet creates a perfect galvanic couple. The cooling water does the rest — and the sheet gouges. Here is the mechanism and how to stop it.
Cold bonding vs welding: which cost, which risks?
Welding is not always possible, or desirable. In ATEX zones, on cast iron, or to save days of downtime, epoxy cold bonding is often the better option. Here is a quantified comparison.
NACE 2 / SSPC-SP10 surface preparation: complete guide
Surface preparation quality determines 80 % of a coating's service life. This guide decodes NACE 2 / SSPC-SP10 requirements, the optimal anchor profile and the mistakes that reduce adhesion.
How to repair a centrifugal pump with epoxy mastic
Cavitation and erosion-corrosion destroy pump casings long before the pump itself reaches end of life. Here is how to rebuild the original geometry with an epoxy mastic, without hot work or heavy machining.
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