Overlaid Piping Spools

With over 1,000 piping spools delivered into the oilsands, CASL’s TSI Thermal Spray Industries Division’s (“TSI”) proprietary spray and fuse tungsten carbide coatings are the proven choice to prolong asset life in severe service tailings and hydrotransport applications. TSI has invested more than 10 years in lab and field testing to optimize its proprietary ST-66 tungsten carbide alloy, an impact and wear resistant powdered alloy designed for, tested in and utilized extensively in severe oilsands applications. Where ST-66 has replaced chrome carbide coatings clients typically report more than a four-fold increase in mean time between outage saving up to 42 maintenance days per year.



The only oilsands supplier with spray and fuse tungsten carbide application systems capable of servicing spools over five feet in length, TSI can process spools from 8” to 120” ID and up to 40’ in length. Coatings from 2mm to 25mm can be applied to straight pipe, tees, wyes, reducers and bends of any angle or arc length.

Features and Benefits - Overlaid Piping Spools

Only the spray & fuse process retains eutectic carbide properties

Benefit: Eutectic tungsten carbide is measurably superior to other coatings in impact and wear resistance

Spray and fuse process attains diffusion bond without creating brittle phases

Benefit: Minimizes spalling and prolongs spool service life

In house metallurgist to customize alloy blends

Benefit: Optimize performance at desired price point

Single source of supply capability

Benefit: One PO and vendor to manage design, fabrication and overlay

Repair service available

Reduce cost by repairing damaged spools vs a high cost new replacement

Able to combine with chrome carbide to form a “hybrid” coating

Utilize tungsten in only high wear leading edge area to maximize life while minimizing cost

Services and Technologies

Learn about CASL’s service and technology offerings. Our industry solutions provide the best in class services to meet the demands of your business.