Concrete Sealants

What Concrete Sealants does

Concrete Sealants, Inc. (dba ConSeal) is a privately held, family-owned specialty chemical manufacturer founded in 1970 and headquartered in Tipp City, Ohio. The company manufactures concrete sealing, waterproofing, and protective products — butyl rubber joint sealants, polyolefin- and geotextile-backed exterior wraps (ConWrap product family), hydrophilic waterstops, specialty admixtures (ConBlock sub-brand covering antimicrobial, crystalline waterproofing, shrinkage reduction, and hydration stabilization chemistries), surface coatings, primers, and concrete sealers. Core technology centers on compound formulation in butyl rubber, thermoplastic rubber, water-based polymer mastics, and rubber/asphalt hot-applied systems, combined with in-house custom die-cutting, sheet extrusion, and lamination capabilities producing hundreds of bespoke sizes, shapes, and formulations per year. Products are specified to ASTM C990, C877, AASHTO M198, and other infrastructure standards and carry NSF Standard 61 (CS-665), UL, GSA, and ISO 9001:2015 certifications.

The company sells primarily on a B2B basis to precast concrete producers, poured-in-place contractors, waterproofing contractors, DOTs, and municipalities, with additional toll-manufacturing revenue from HVAC, electrical, and petroleum pipe customers. Pricing is quote-based rather than published, and go-to-market combines direct enterprise field sales (technical sales engineers working on customer sites and in plants), an e-commerce storefront for smaller orders, Lunch n' Learn educational programs targeting specifiers, and a 14-location North American distribution warehouse network across the US and Canada, with the company actively recruiting additional third-party distributors. Customer evidence spans Hancock Concrete Products, the Minnesota DOT, multiple US airports (Dayton, Minneapolis, O'Hare), and the US Army Corps of Engineers, with project references also in Israel, Egypt, and Italy.

The business model is fundamentally a specialized industrial-chemicals manufacturer with a project-driven, specification-embedded revenue model rather than a software or recurring-revenue business. Revenue streams derive from one-time product sales of manufactured sealants and coatings, custom product development (including single-use formulations), and toll manufacturing services, all transacted under multi-year contract relationships with infrastructure and industrial buyers. The company has remained family-owned across three generations with no disclosed external funding or institutional investors.

Name

Concrete Sealants

Legal name

Concrete Sealants, Inc.

Website

https://conseal.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

11–50 employees

Short description

Concrete Sealants (ConSeal) is a family-owned specialty manufacturer of butyl rubber joint sealants, waterproofing wraps, waterstops, and concrete admixtures, founded in 1970 and serving precast concrete producers, contractors, DOTs, and municipalities across North America and select international projects.

Ownership category

akta.pro rank

Product category

Concrete Sealants & Waterproofing Products

SIC

Adhesives & Sealants (2891), Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Fabricated Rubber Products, Nec (3060)

akta.pro primary industry

Primers, Bonding Agents & Surface Preparation Products (IMADAOAK)

Keywords

• Concrete joint sealants
• Butyl rubber sealants
• Waterproofing membranes
• Precast concrete products
• Concrete admixtures

Headquarters

HQ city

Tipp City

HQ country

United States

HQ region

North America

Offices14 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. Sealant and Waterproofing Products: Sale of extruded sealants, butyl rubber sealants, wraps, waterstops, coatings, mastics, hot-melts, lubricants, densifying coatings, and antimicrobial admixtures. Products are sold to precast concrete producers, contractors, and end-users for construction applications.
2. Toll Manufacturing: Manufactures products for HVAC, electrical, petroleum pipe, and other applications under toll manufacturing arrangements.
3. Custom Product Development: Creates hundreds of custom sizes, shapes, and formulations of products based on specific customer needs. Many custom products are created for single-use and never produced again in the same form.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

Concrete Sealants (ConSeal) is a manufacturer of specialty concrete sealing, waterproofing, and coating products for the precast and poured-in-place concrete construction industry. The company produces butyl rubber joint sealants, exterior protective wraps (ConWrap), hydrophilic waterstops, surface coatings, primers, concrete sealers, and specialty admixtures (ConBlock). It also offers toll manufacturing services for industrial applications and custom product development for unique customer specifications.

Product overview

Concrete Sealants (ConSeal) is a manufacturer of concrete sealing and waterproofing products founded in 1970. The product portfolio consists of multiple interconnected product lines: (1) Precast Concrete Joint Sealants - butyl rubber extruded sealants for sealing precast concrete joints in pipes, manholes, box culverts, and tanks; (2) ConWrap Protective External Wraps - butyl-based membrane wraps for exterior joint protection including polyolefin-backed (CS-212), geotextile-backed (CS-213), and specialty wraps (ConWrap PW, AMS, MPS); (3) Hydrophilic Waterstops including CS-231 controlled expansion and CS-235 rapid expansion variants; (4) ConBlock Specialty Admixtures sub-brand covering antimicrobial protection (MIC), crystalline waterproofing (CDA/CDA RED), shrinkage reduction (SH), and hydration stabilization (HP); (5) Surface Coatings including CS-55 water-based acrylic, CS-90 fuel resistant epoxy, and CS-1800 solvent-free waterproofing membrane; (6) Concrete Sealers, Primers including CS-75 water-based primer, and Lubricants. The products work together as a complete system for achieving watertight concrete infrastructure - sealants seal joints, wraps provide exterior protection, waterstops handle dynamic joints, admixtures protect concrete internally, and coatings/sealers protect surfaces.

Differentiator

Problem solved

Functional benefit

Brands

• ConWrap: Exterior and protective wraps manufactured for the precast and steel industries, including butyl wraps for sealing solutions.

Products and services

• Precast Concrete Joint Sealants Butyl rubber extruded sealants used to seal joints in precast concrete pipes, manholes, box culverts, septic tanks, burial vaults, and structural components. Sold to precast concrete producers and contractors.
• Protective External Wraps (ConWrap) Exterior butyl-based membrane wraps including CS-212 (polyolefin backed), CS-213 (geotextile backed), ConWrap PW, and ConWrap AMS, used to protect underground structures from water and soil intrusion.
• Hydrophilic Waterstops Water-swelling waterstops such as CS-231 controlled expansion and CS-235 rapid expansion that expand on contact with water to create watertight seals in concrete joints.
• ConBlock Specialty Admixtures Specialty concrete admixtures including ConBlock MIC (antimicrobial/microbial induced corrosion protection), CDA (crystalline waterproofing), SH (shrinkage reduction), and HP (hydration stabilization).
• Surface Coatings Protective barrier coatings applied to concrete surfaces including CS-55 water-based acrylic damproof coating, CS-90 fuel resistant epoxy coating, and CS-1800 solvent-free waterproofing membrane.
• Concrete Sealers Penetrating sealers that react with cured concrete to form crystalline structures blocking pores and preventing water penetration.
• Primers Water-based primers such as CS-75 designed to replace solvented primers with disposal hazards.
• Trowelable and Caulk Sealants Hand-applied sealants for sealing joints, gaps, and cracks in concrete structures, including CS-440 fuel and oil resistant sealant.
• Lubricants Lubricants used in concrete formwork and joint assembly applications.
• CS-665 Non-Toxic Butyl Rubber Sealant NSF Standard 61 certified non-toxic butyl rubber sealant for use in drinking water systems.
• CS-1800 Solvent-Free Waterproofing Membrane Solvent-free trowelable waterproofing membrane designed to replace heavily solvented waterproofing alternatives.
• CS-90 Fuel Resistant Epoxy Coating Water-based epoxy coating designed for concrete systems in contact with fuel and hydrocarbons.
• CS-212 ConWrap Polyolefin Backed Exterior Joint Wrap External membrane wrap with polyolefin backing for protection against water and soil intrusion. Meets ASTM E1745, C877 Type III, C990, and AASHTO M198 specifications.
• CS-231 Controlled Expansion Hydrophilic Waterstop Controlled expansion hydrophilic waterstop designed to replace traditional clay-based waterstops.
• CS-367 Entry Seal Entry seal designed to seal sanitary access lids while maintaining ease of access to the system.
• CS-55 Water-Based Acrylic Damproof Coating Water-based acrylic coating designed to replace heavily solvented bituminous damproof coatings for concrete protection.
• CS-75 Water-Based Primer Water-based primer designed to replace solvented primers with disposal hazards.
• CS-440 Fuel and Oil Resistant Sealant Fuel and oil resistant sealant designed to maintain sealant integrity when in direct contact with fuel, oil, and other hydrocarbons.
• CS-213 ConWrap Geotextile Backed Exterior Joint Wrap External membrane wrap with geotextile backing capable of withstanding high temperatures of asphalt paving.
• ConWrap PW and ConWrap AMS Exterior Wrap Systems Exterior viscoelastic and non-curing gap-filling compound wrap systems for metal and concrete structures.
• Toll Manufacturing Services Contract manufacturing of sealant and waterproofing products for HVAC, electrical, petroleum pipe, and other industrial applications.

Quantifiable outcome

• Products meet ASTM C990, C877, AASHTO M198 specifications for joint sealants
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Press-Seal Corporation: Fort Wayne, Indiana-based manufacturer of compression seals, gasket systems, and joint sealants specifically engineered for precast concrete structures (manholes, pipes, box culverts). Closest direct competitor to ConSeal in the precast concrete joint sealant niche.
• Hamilton Kent: Toronto-based specialist in rubber gaskets, seals, and connectors for precast concrete pipe and manhole joints. Directly comparable product portfolio, customer base (municipal water/wastewater), and regulatory certifications (NSF/ANSI 61).
• W. R. Meadows: Hampshire, Illinois-based manufacturer of construction sealants, waterproofing membranes, and concrete curing compounds. Overlaps significantly with ConSeal's joint sealants, waterstops, and surface coatings lines, serving similar contractors and DOT customers.
• Tremco Incorporated: Cleveland-based construction sealants and waterproofing manufacturer (part of RPM International). Competes in joint sealants, below-grade waterproofing, and air barriers for commercial and infrastructure applications adjacent to ConSeal's core offerings.
• Henry Company: El Segundo, California-based manufacturer of waterproofing and air barrier systems, foundation coatings, and sealants. Directly overlaps with ConSeal's waterproofing membranes, surface coatings, and below-grade protection products.
• SpecChem: Kansas City-based specialty concrete products manufacturer offering curing compounds, sealers, waterproofing, and joint sealants for precast and cast-in-place applications. Comparable mid-market positioning to ConSeal.

Broad incumbents

• Mapei Corporation: US arm of Italian construction chemicals major, offering sealants, waterproofing membranes, admixtures, and concrete repair products. Competes with ConSeal in commercial waterproofing and admixture categories, with much broader product breadth and global scale.
• Sika AG: Swiss global leader in construction chemicals and sealants. Provides extensive overlap with ConSeal through joint sealants, waterproofing, concrete admixtures, and roofing systems, but operates at vastly larger scale across all construction segments.
• BASF Master Builders Solutions: Construction chemicals division of BASF offering concrete admixtures, waterproofing, sealants, and repair products. Overlaps with ConSeal's ConBlock admixture line and waterproofing membranes, with global R&D and specification support.
• Bostik (Arkema): Global adhesives and sealants business of Arkema. Competes in construction sealants and specialty adhesives, with broader industrial and consumer reach but less precast concrete specialization than ConSeal.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubevimeo.com/conseal
• Facebookfacebook.com/ConcreteSealants
• LinkedInlinkedin.com/company/concrete-sealants-inc-

Revenue estimate

Valuation estimate

Number of profiles

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 Concrete Sealants