Mar-flex Waterproofing & Building Products

What Mar-flex Waterproofing & Building Products does

Mar-flex Waterproofing & Building Products is a US-based manufacturer of below-grade and above-grade waterproofing, drainage, dampproofing, and insulation solutions for the commercial and residential construction markets. Founded around 1986 (with conflicting dates of 1984, 1986, and 1994 cited across sources) and headquartered in New Carlisle/Carlisle, Ohio, the company sells through two principal product families: the Armor Series (commercial Division 7 waterproofing, including Mar-flex 5000 membrane, ArmorClay bentonite systems, ArmorAir barriers, ArmorDrain drainage boards, ArmorSheet self-adhering asphalt membranes, and ArmorMastic sealers) and the Residential/Multi-Family line (LiteFUSION, QuickSeal, Fusion UV, DampFUSION, GeoMat, ShockWave, TopGun, GeoDrain, Stonewells, LandScapes window wells, Vortex vents, control joints, and crack injection kits). The company also sells the A-Buck scaffolding system introduced in 2024.

The company monetizes through hardware sales of branded waterproofing systems, with quote-based pricing (not publicly disclosed) routed through Division 7 commercial distributors, residential lumber distributors, and direct phone/email sales. Customers include commercial architects, specifiers, contractors, custom home builders, and distributor partners; a named enterprise account is Ryan Homes (Southwestern Ohio). Mar-flex holds patents on Moisture Block 361, LandScapes Window Wells, and DampFUSION, plus the ArmorClay trademark, and its products are BABAA-certified and LEED-eligible, positioning it for federally funded and green-building projects. In February 2026, Mar-flex was acquired by Keene, Inc., with OnMark Capital advising Keene, integrating the company into a broader building envelope platform.

Name

Mar-flex Waterproofing & Building Products

Legal name

Mar-flex Waterproofing & Building Products

Website

https://mar-flex.com

Company type

Private

Founded year

1986

Operating status

Acquired

Headcount range

11–50 employees

Short description

Mar-flex is a US manufacturer of below-grade and above-grade waterproofing, drainage, and dampproofing systems serving commercial contractors, custom home builders, and Division 7 distributors via its Armor Series and Residential product lines.

Ownership category

akta.pro rank

Product category

Construction Materials / Waterproofing Products

NAICS

Paint, Coating, and Adhesive Manufacturing (3255), Adhesive Manufacturing (32552), Paint and Coating Manufacturing (325510)

SIC

Adhesives & Sealants (2891), Paints, Varnishes, Lacquers, Enamels & Allied Prods (2851), Miscellaneous Plastics Products (3080)

akta.pro primary industry

Sealants, Expansion Joints & Weatherproofing (Caulking, Joint Systems) (IMAFAMAF)

akta.pro secondary industries

Backer Rods, Tapes & Joint Accessories (IMADAOAL), Roofing Adhesives, Sealants & Leak Repair (IMADAOAF)

Keywords

• Waterproofing membranes
• Drainage boards
• Basement waterproofing
• Building envelope solutions
• Bentonite waterproofing

Headquarters

HQ city

New Carlisle

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Waterproofing Building Materials Sales: Mar-flex generates revenue through the manufacture and sale of waterproofing, drainage, and insulation products including membranes, bentonite systems, drainage boards, crack repair kits, window wells, vents, mastics, sealers, and accessories to commercial and residential construction markets.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Mar-flex manufactures physical waterproofing, dampproofing, drainage, insulation, and air barrier products for below-grade and above-grade building envelope applications. The portfolio spans the Armor Series commercial line (membranes, bentonite systems, drainage boards, air barriers, sheet membranes, sealers) and residential/multi-family solutions (spray-on waterproofing membranes, drainage and insulation boards, egress window wells, foundation vents, crack injection repair kits, control joint systems, and sealants). Products are sold through Division 7 distributors, residential distributors, contractor networks, and direct sales to commercial and residential construction markets in the United States.

Product overview

Mar-flex Waterproofing & Building Products is a manufacturer of physical building materials rather than a software platform. The company produces a comprehensive portfolio of waterproofing, dampproofing, drainage, and building envelope solutions organized primarily under two lines: the Armor Series (commercial solutions) and Residential/Multi-Family products. Armor Series includes commercial-grade waterproofing membranes (Mar-flex 5000, ArmorMembrane 363), the ArmorClay bentonite waterproofing system, ArmorAir barriers, ArmorDrain drainage boards, and ArmorSheet self-adhering asphalt membranes. Residential products include LiteFUSION, QuickSeal, and Fusion UV waterproofing membranes; DampFUSION dampproofing; GeoMat/GeoMat Plus/TopGun/ShockWave drainage boards; GeoDrain drainage tile; Stonewells and LandScapes egress window wells; Vortex telescopic vents; crack injection repair kits; and control joint systems. The product line also extends to masonry sealers (SurfiSeal), mastics (ArmorMastic, 362 All Season Mastic), safety equipment, and the A-Buck scaffolding system. Products are distributed through a network of distributors and feature LEED certification compatibility with many items made from recycled materials. The company positions itself as an American-made manufacturer with over 40 years of expertise serving commercial, residential, and multifamily construction markets.

Differentiator

Problem solved

Functional benefit

Brands

• Armor Series: Complete commercial waterproofing solution including waterproofing membranes, dampproofing, bentonite products, drainage boards, air barriers, and flashing products.
• TopGun
• GeoMat
• GeoDrain
• LiteFUSION
• ShockWave
• Stonewells
• Vortex
• ArmorClay
• DampFusion
• Fusion UV
• QuickSeal
• A-Buck

Products and services

• Armor Series Commercial Waterproofing System Complete commercial waterproofing and air barrier product line for Division 7 applications, including waterproofing membranes, dampproofing, bentonite products, drainage boards, self-adhering asphalt sheets, mastics, and flashing products for architects, specifiers, and commercial contractors.
• Mar-flex 5000 Waterproofing Membrane Industry-standard waterproofing membrane available in solvent-based (SB) and water-based (WB) formulations for commercial and residential applications on block, ICF, and poured concrete walls.
• ArmorMembrane 363 Waterproofing Commercial-grade waterproofing membrane (also marketed as ProVention 363) for foundation waterproofing applications on poured concrete and masonry walls.
• MoistureBlock 361 Dampproofing Patented single-component asphalt emulsion dampproofing coating designed to dampproof and protect concrete and concrete masonry surfaces, documented under an ICC Legacy Report for code compliance.
• ArmorClay Bentonite Waterproofing System Bentonite-based commercial waterproofing system combining HDPE backing with self-sealing bentonite clay (ArmorClay 600, 1000, and 1500 variants). The clay expands when wet, absorbing several times its weight in water to seal below-grade structures without nails or VOCs.
• ArmorAir Barrier 1200p Air and vapor barrier product for commercial applications providing a seamless, continuous membrane around the building envelope, impermeable to air and vapor transmission while remaining watertight.
• ArmorSheet Self-Adhering Asphalt Sheet Self-adhering asphalt membrane for vertical and horizontal waterproofing on structural foundation walls, decks, tunnels, split slabs, plaza decks, and parking decks.
• ArmorDrain Drainage Boards Commercial drainage boards (ArmorDrain 110, ArmorDrain 150, ArmorDrain 400) used to manage groundwater around commercial waterproofing systems.
• GeoDrain Drainage Tile Three-dimensional high-flow drainage core wrapped with non-woven filter fabric that channels water away from foundations; available in 6-inch and 12-inch sizes.
• ArmorMastic 200 Mastic and concrete sealer for protecting lower-level spaces and masonry/concrete substrates in commercial waterproofing assemblies.
• LiteFUSION Waterproofing Membrane Economical water-based acrylic waterproofing membrane that sprays on easily and dries into a seamless, monolithic gray coating for residential applications, providing protection beyond standard dampproofing.
• QuickSeal Waterproofing Membrane Residential waterproofing membrane available in solvent-based (SB) and water-based (WB) formulations for poured foundation walls.
• Fusion UV Waterproofing Membrane 100% virgin polymer spray-on waterproofing membrane with UV-resistant gray formulation for poured foundation walls. Backed by a 15-year warranty and resists freeze-thaw cycles.
• Basix Waterproofing Membrane Entry-level waterproofing membrane product for residential foundation applications.
• DampFUSION Dampproofing Membrane Water-based acrylic spray-applied dampproofing membrane for masonry, block, pre-cast, and poured concrete wall foundations that stops leaks and water vapor transmission.
• TopGun Drainage and Protection Board Premium drainage and protection board offering R-3 to R-15 value per inch, usable in any geographic area; targeted at luxury residential applications.
• GeoMat Drainage Board 100% recycled HDPE drainage roll with dimples aligned along vertical and horizontal axes for rapid water channeling; described as the only 100% green drainage board on the market.
• GeoMat Plus Drainage Board Enhanced version of GeoMat with higher compression strength for residential and commercial applications requiring additional durability.
• ShockWave Drainage Board Heavy-duty drainage board made from 100% post-consumer recycled polyethylene-polyolefin foam with 283.72 PSI compressive strength and Crush-Resistant Memory; absorbs up to 101.11 gallons per hour per lineal foot of groundwater. Winner of the Expert's Choice Award for Most Innovative Product at the World of Concrete convention.
• Stonewells Egress Window Wells Egress basement window wells with simulated rock texture in designer colors for below-grade living environments, featuring one-piece construction for easy installation.
• LandScapes Window Wells Patented no-maintenance window wells that will not rust or dent like metal, brightening basement environments and including drain kit and built-in floor.
• Vortex Telescopic Vents Adjustable telescopic vent system made from high-density polyethylene for foundation airflow management; available in two sizes to fit nearly every foundation wall.
• Control Joint Systems Vertical control joint extrusions in 0.750-inch and 1.250-inch sizes that determine where concrete cracks appear in foundation walls, easing repair and preserving aesthetics per American Concrete Institute standards.
• Crack Injection Repair Kits DIY and professional foundation crack repair solutions including 30-foot Crack Repair Injection Start-Up Kit, Single Use Crack Repair Kit, polyurethane ProKit injection systems, epoxy fillers, anchor epoxy, urethane foams, and surface seal accessories.
• A-Buck Scaffolding System Low-rise scaffolding equipment and accessory system for construction applications, introduced by Mar-flex in 2024.

Quantifiable outcome

• ShockWave drainage board absorbs up to 101.11 gallons per hour per lineal foot of groundwater, eliminating hydrostatic pressure
• +3 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered core and minor.

• Ryan HomescoreChannel Partner/ Reseller/ DistributorMar-flex entered into a partnership with Southwestern Ohio Ryan Homes to offer Mar-flex waterproofing products on all homes built by Ryan Homes throughout the region. The deal was described as featuring Mar-flex products on all homes in the district.
• World of ConcreteminorGTM or Marketing PartnerMar-flex proudly partners with the World of Concrete convention, participating as an exhibitor and using the platform to launch new products including the A-Buck Scaffolding System.

Scale indicators5 records

Recent moves5 records

Expansion highlights6 records

Direct peers

• Carlisle Construction Materials: Carlisle is one of the largest US manufacturers of commercial roofing and waterproofing membranes, including below-grade and plaza deck systems directly competing with Mar-flex's Armor Series and ArmorSheet products.
• Tremco (RPM International): Tremco provides commercial waterproofing, air barriers, and building envelope sealants serving the same Division 7 architect/specifier channel that Mar-flex targets with its Armor Series.
• W. R. Meadows: W. R. Meadows manufactures waterproofing membranes, dampproofing products, sealants, and drainage materials for below-grade construction, directly overlapping Mar-flex's core Armor and Residential product lines.
• Polyguard Products: Polyguard specializes in self-adhering waterproofing membranes, drainage boards, and building envelope products for commercial and residential applications, closely matching Mar-flex's membrane and drainage portfolio.
• GCP Applied Technologies: GCP (now part of Compagnie de Saint-Gobain) provides below-grade waterproofing membranes, drainage composites, and air barriers, competing head-to-head in commercial waterproofing specifications against Mar-flex.
• Henry Company: Henry Company is a long-established manufacturer of commercial and residential waterproofing, air barriers, and roofing products, serving the same distributor and contractor channels as Mar-flex.

Broad incumbents

• Sika AG: Sika is a global construction chemicals leader offering waterproofing, sealing, bonding, and concrete repair solutions. Its MasterSeal and SikaProof lines overlap Mar-flex's commercial waterproofing and crack injection product categories.
• Mapei Corporation: Mapei manufactures a broad portfolio of construction sealants, waterproofing membranes, and concrete repair products for commercial and residential construction, competing with Mar-flex across multiple product lines.
• IKO: IKO is a large roofing and waterproofing products manufacturer whose below-grade and self-adhered membrane lines overlap Mar-flex's commercial ArmorSheet and ArmorMembrane products in building envelope applications.

Emerging players

• SealGuard: SealGuard and similar specialty waterproofing manufacturers target niche residential and small-commercial foundation waterproofing segments, sharing Mar-flex's contractor-channel focus and crack repair kit business model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/MarFlex12
• YouTubeyoutube.com/channel/UC5UPggNle3VGHTFMBzuxZjA?
• Facebookfacebook.com/MarFlex5000
• LinkedInlinkedin.com/company/mar-flex-waterproofing-building-products/?viewAsMember=true
• Instagraminstagram.com/marflex5000

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mar-flex Waterproofing & Building Products