Corrosion-Resistant Coatings, Linings, and Containment Systems
INTEREP supplies a full-spectrum suite of corrosion-control materials for concrete and steel assets exposed to acids, caustics, solvents, salts, wastewater, and abrasive service. Our offering spans thin-film barrier coatings and sealers, high-build monolithic linings for immersion and secondary containment, and heavy-duty polymer concrete systems. For severe duty cycles, we support brick/tile lining systems with compatible mortars, grouts, and barrier layers.
Capabilities
A system-first approach: substrate condition, exposure chemistry, temperature, abrasion, and downtime determine the right assembly.
Barrier coatings & sealers
Thin-film protection for splash and atmospheric corrosion, plus primers and topcoats that complete multi-layer systems.
Immersion linings & containment
High-build, low-permeability linings for tanks, sumps, pits, trenches, and secondary containment walls and floors.
Polymer concrete & heavy-duty overlays
Castable and trowelable surfacing systems for high-abrasion, impact, and chemical service where conventional concrete fails.
Brick/tile lining systems
Masonry systems for severe chemical and thermal environments, supported by compatible mortars, grouts, and barrier layers.
Membranes & barrier layers
Impervious membranes and elastomeric barrier layers used as stand-alone linings or underlayments beneath other systems.
Detailing & repair materials
Joint compounds, sealants, leak-mitigation injection grouts, and substrate repair materials to restore integrity before lining installation.
System families
Product families and where they fit. Selection is driven by exposure chemistry, substrate, temperature, abrasion, and downtime constraints.
| Product family | What it is | Typical use cases | Common substrates |
|---|---|---|---|
| Thin-film barrier coatings & sealers | Resin-based coatings used as stand-alone barriers or as primers/topcoats within multi-layer systems. | Splash zones, containment walls, equipment rooms, corrosion protection on structural steel. | Concrete, steel, masonry |
| High-build monolithic linings | Low-permeability linings (often reinforced) designed for immersion and aggressive chemical service. | Tanks, sumps, pits, trenches, wastewater structures, secondary containment floors. | Concrete, steel |
| Polymer concrete overlays & castables | Castable or trowelable chemical-resistant surfacing systems engineered for abrasion and impact. | Process floors, trenches, equipment pads, high-wear containment areas. | Concrete (prepared/primed) |
| Acid brick / tile lining systems | Masonry linings installed with compatible chemical-resistant mortars and grouts over a barrier layer. | Severe chemical and thermal service, process areas, floors/trenches, tanks, chimneys/ducts. | Concrete, steel (with barrier layer) |
| Chemical-resistant mortars & setting beds | Inorganic and organic mortar families for bonding and bedding masonry linings. | Brick/tile installation, floor and trench linings, tank linings. | Brick/tile-to-substrate systems |
| Structural grouts (chemical-service) | High-strength, low-shrink grouts for equipment foundations and chemically exposed interfaces. | Baseplates, pedestals, equipment foundations, restoration of deteriorated supports. | Concrete, steel interfaces |
| Elastomeric urethane-modified asphalt membrane barriers | Two-component elastomeric membrane barrier applied by trowel, spray, or self-leveling methods as a primary barrier or underlayment. | Containment linings, under-membrane barriers beneath brick/tile or monolithic linings, crack-bridging substrates. | Concrete, steel, masonry |
| Sheet membrane barriers | Impervious sheet membranes installed between substrate and the protective lining assembly. | Under brick/tile systems, tanks and process vessels, severe chemical services requiring an impervious barrier. | Concrete, steel |
| Joint compounds & sealants | Chemical-resistant detailing materials for terminations, penetrations, and movement joints. | Pipe penetrations, transitions, expansion joints, leak integrity detailing. | Concrete, steel, masonry |
| Anchored thermoplastic liner systems | Mechanically anchored thermoplastic liners selected for combined abrasion and chemical exposure. | Trenches, sumps, conveyance structures, severe abrasion/erosion service. | Concrete |
| Insulative lining blocks for ducts/stacks | Insulating lining blocks and compatible bedding/adhesive systems for flue-gas and duct environments. | Scrubber ductwork, stacks, corrosive flue-gas handling, thermal insulation + corrosion protection. | Steel, concrete (retrofit dependent) |
| Substrate repair & underlayments | Fast-setting repair materials that restore profile and integrity prior to lining installation. | Spalls, cracks, irregular surfaces on floors/walls/ceilings before coatings/linings. | Concrete |
| Injection & leak-mitigation grouts | Reactive injection materials used to stop leakage through cracks/voids and around penetrations. | Leak stoppage in containment structures, manholes, tanks, and below-grade concrete. | Concrete |
Where these systems get used
Typical assets and environments. If you can share chemical concentration, temperature, and duty cycle, we can quickly narrow options.
Secondary containment
Containment dikes, curbs, trenches, and pads protecting from spills and chronic exposure.
Tanks, sumps, pits
Immersion duty and intermittent cycling where permeability and substrate preparation are decisive.
Process floors & trenches
High-abuse zones where abrasion and impact combine with chemical exposure and washdown.
Ductwork, stacks, and fume handling
Corrosive gas environments requiring corrosion protection and often thermal insulation.
Water & wastewater assets
Structures affected by microbiologically influenced corrosion, chemicals, and continuous moisture.
Equipment support & foundations
Grouting and repair systems for baseplates, pedestals, and chemical-service supports.
FAQ
Fast answers that typically unblock selection and budgeting conversations.
Request a quote or system recommendation
Send the basics and we will route you to the right specialist. If you have a spec, include it. If not, send photos and exposure details.