Madewell Products
Corrosion-resistant, 100% solids protective coatings and concrete restoration mortars for manhole rehabilitation — a low-cost alternative to replacing brick and concrete structures eaten by H2S. Made in the USA for 50+ years, with Mainstay® performance proven since 1962.
Products & specifications
- Mainstay® Composite LinerTwo-component system: high-strength restoration mortar plus an epoxy corrosion barrier that cure simultaneously — structural repair and H2S protection in one lining. Brick & concrete manholes · Sewer structures
- Mainstay Composite Liner FRThe standard system plus a high-strength epoxy/fiberglass layer where extra structural capacity is needed. Fiber reinforced
- Calcium Aluminate MortarsCalcium aluminate and pure calcium aluminate cement mortars as standalone rehab solutions in biogenic corrosion environments. Stand-alone or base layer
- Ancillary Products & EquipmentHydraulic cement mortars, epoxy primers, chimney seals — plus Madewell's own mixing, pumping, and spray equipment built for heavy-bodied mortars and 100% solids epoxies. Full system, one source
- Certified applicators onlyMadewell materials are installed exclusively by certified applicators — we can connect you with certified contractors or the certification program. Product calculator available
Rehab vs. replace
Full manhole replacement means excavation, traffic control, bypass pumping, and a six-figure line item per structure. Rehabilitation with Mainstay restores structural integrity and installs a corrosion barrier in place, at a fraction of replacement cost — usually without excavation. Madewell materials are installed exclusively by certified applicators; we can connect your utility or contractor with the certification program.
Pairs with Wager odor control — treat the H2S causing the corrosion while Madewell repairs the damage it has done.
Product data compiled from www.madewell.net — retrieved Sept 2026. Verify against current manufacturer submittals before bidding.