Industrial coatings and maintenance in Saguenay–Lac-Saint-Jean
Induscoat works in Saguenay–Lac-Saint-Jean from LaSalle, Montreal, for the region's aluminum smelters, pulp and paper mills, and hydroelectric and port facilities: corrosion protection, tank and vessel linings, cold repair of in-service equipment and epoxy grouting of machinery. Systems are chosen for each plant's own exposure: alumina dust, pulping liquors, moving water.
Smelters, paper mills and power plants: three ways to degrade steel and concrete
The region's industry was built on hydroelectricity: power plants on the Saguenay River and its tributaries supply several aluminum smelters, including those in Jonquière and Alma, while the forest feeds pulp and paper mills and sawmills.
Each industry wears its equipment in its own way. In a smelter, alumina and bath dust is abrasive, the potroom atmosphere is hot and laden, and pneumatic conveying wears elbows and chutes. In a paper mill, corrosion comes from cooking and bleaching liquors, constant humidity around paper machines, and white water, which attack steel, chest concrete and piping. In a power plant, it is cavitation and erosion on turbine runners, valves and conduits, and permanent immersion of trash racks and stoplogs.
Long winters, the fjord and production shutdowns
The climate in Saguenay–Lac-Saint-Jean is continental: long, cold winters, a short summer and many freeze-thaw cycles in spring and fall. Outdoor painting is concentrated in the warm season; the rest of the year it needs heated shelters and low-temperature products. Inside the plants it is often the reverse: heat, condensation and high humidity make surface preparation and dew point control harder.
The port, on the Saguenay fjord, receives ships year round; docks, bulk conveyors and port structures there face brackish water, frost and abrasion from the materials handled. At smelters and paper mills, shutdowns are short and scheduled: mobilization from Montreal is prepared so the repair fits the window.
What we do for the region's plants
For structures, galleries and equipment exposed to plant atmospheres, we apply corrosion protection systems chosen for the exposure category, with preparation suited to the substrate's condition. Process vessels, chests and tanks receive internal linings that resist the stored product and service temperature; concrete floors, pits and chests are repaired and then protected against chemical attack.
Pumps, heat exchangers and valve bodies worn by corrosion or cavitation are repaired cold with metal-filled composites and polymers, often without full disassembly. Compressor, fan and pump foundations cracked by vibration are restored with epoxy grouting.
Standards and specification references
Specifications in the region use the usual references of industrial Quebec: ISO 12944 for steel paint systems, ISO 8501-1 or SSPC/AMPP for surface preparation, API 653 for storage tanks and API 570 for process piping when the owner applies them, and API RP 686 for installing and grouting rotating machinery.
For internal linings in immersion, the manufacturer's data sheet sets chemical compatibility, maximum temperature and return-to-service conditions, and holiday testing validates the result before filling.
Regions served
- Saguenay — Chicoutimi, Jonquière, La Baie
- Alma and Lac-Saint-Jean-Est
- Roberval and Saint-Félicien
- Dolbeau-Mistassini and Maria-Chapdelaine
- Saguenay fjord and port area
Industries served
- Aluminum smelters and production
- Pulp and paper, sawmills and wood products
- Hydroelectric plants and structures
- Deep-water port and bulk handling
- Aluminum processing and metal fabrication
- Drinking water and wastewater treatment
Services & solutions
- Corrosion protection for plant structures and galleries
- Internal linings for vessels, chests and tanks
- Concrete protection against chemical attack
- Cold repair of pumps, heat exchangers and valves
- Rebuilding parts eroded by cavitation
- Epoxy grouting of machine foundations
Brands distributed
- Induscoat — own brand (Canada coatings)
Operational mobilization
In Saguenay–Lac-Saint-Jean, we mobilize from LaSalle for scheduled plant and power station shutdowns. Products, tools and shelters are planned before departure, and work is done under the permits the site requires: confined space, hot work, lockout, work near water. Outdoors, the season and the dew point decide what is feasible.
Frequently asked questions
Which coating suits steel in an aluminum smelter?
It depends on the area: heat and dust near potrooms, an industrial atmosphere on outdoor structures, abrasion in alumina handling. A corrosion system chosen for the exposure category is combined, where abrasion dominates, with wear protection. Surface preparation governs the life of the whole system.
Can a paper mill vessel or chest be repaired during a short shutdown?
Yes, if the repair is prepared before the shutdown: a condition survey, a lining compatible with the liquor and temperature, and cure time planned before return to service. Fast-cure products shorten the window needed.
Do you repair parts eroded by cavitation in power plants?
Yes, for pumps, valves and accessible parts: attacked areas are cleaned, rebuilt with a metal-filled composite, then protected with a cavitation-resistant polymer. For turbine runners, the decision rests with the owner and their designer.
Do you come to Saguenay–Lac-Saint-Jean from Montreal?
Yes. Induscoat has no office in the region: we work from LaSalle on a mobilization planned around your shutdown window. Photos, dimensions and data on the products in service are enough to prepare a first proposal.
Explore our solutions
A plant shutdown to prepare in Saguenay–Lac-Saint-Jean?
Send the equipment description, photos and shutdown date: we propose the system and the work method.
Induscoat is the Quebec-Ontario subsidiary of Induscoat Group, an industrial group active in Canada and Morocco.
Induscoat, the Group's Quebec-Ontario subsidiaryAreas we serve
- Industrial coatings and maintenance in Quebec
- Industrial coatings and maintenance in Montreal
- Industrial coatings and maintenance in Ontario
- Industrial coatings and maintenance in Abitibi-Témiscamingue
- Industrial coatings and maintenance on the Côte-Nord
- Industrial coatings and maintenance in Mauricie and Centre-du-Québec
- Industrial coatings and maintenance in Montérégie