What Sealeze does

Sealeze is a US-based manufacturer of industrial brush-based sealing, cleaning, guiding, and shielding solutions, operating as a subsidiary of Osborn. Its product portfolio centers on metal-backed strip brushes (in nylon, metal, and specialty filament variants), the proprietary XtraSeal membrane-barrier strip brush, the metal-free Ez-Flex flexible strip brush, staple set tufted brushes, and formed strip brushes produced as cups, arcs, coils, spirals, and lever seals. Supporting accessories include aluminum and stainless steel brush holders, mounting tabs, punching options, and rotary brush assemblies. Application-specific solution lines address data center cable sealing (CoolBalance grommets CB10, CB11, CB22, CB33), elevator shaft pressurization (UL approved for 3-hour fire doors), and building envelope weather sealing. Independent laboratory testing validates Therm-L-Brush durability at up to 2,000,000 cycles and the company reports 98.5% air infiltration reduction in elevator applications.

The technology base spans synthetic, metal, and natural filament materials across channel sizes A through K, with construction methods including metal-backed strip, staple set/tufted, and formed brush architectures. Multiple US patents protect the brush seal with stress-and-deflection accommodating membrane, the quick-change brush seal retaining arrangement, the brush seal recover assembly, the railway track weather protection barrier system, and the high-temperature device shaft brush seal assembly, with parallel filings in the EPO, Korea, Australia, Canada, India, and Eurasia. Trademarks cover SEALEZE, XtraSeal HT, CoolBalance, Ez-Flex, and Therm-L-Brush. Manufacturing is entirely US-based, and the company is ISO 9001:2015 certified.

Sealeze operates a sales-led, quote-based business model with technical sales representatives available by phone, email, and online forms. There is no e-commerce or self-serve purchasing — every order requires sales consultation for proper product configuration. Pricing is non-public and determined by application requirements, materials, dimensions, and quantities, with multi-year contract cadence. The company serves enterprise customers across aerospace and defense, transportation, agriculture, food processing, data centers, industrial manufacturing, elevator, and power generation verticals. Distribution is direct (phone, email, online quote forms) with no disclosed third-party channel network.

Name

Sealeze

Legal name

SEALEZE®

Website

https://sealeze.com

Company type

Private

Founded year

1987

Operating status

Operating

Headcount range

101–250 employees

Short description

Sealeze is a US-based subsidiary of Osborn that manufactures custom industrial brush products — strip, formed, tufted, and proprietary XtraSeal and Ez-Flex variants — for sealing, cleaning, guiding, and shielding applications across aerospace, elevator, data center, food processing, and power generation customers.

Ownership category

akta.pro rank

Product category

Industrial Brush Manufacturing

NAICS

Gasket, Packing, and Sealing Device Manufacturing (339991), Broom, Brush, and Mop Manufacturing (339994)

SIC

Adhesives & Sealants (2891)

akta.pro primary industry

Sealants (Construction & Industrial) (IMAEAGAI)

Keywords

• Industrial brush solutions
• Strip brush manufacturing
• Brush sealing products
• Custom formed brushes
• Industrial weatherseal brushes

Headquarters

HQ city

Richmond

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Brush Products: Custom and standard industrial brush products for sealing, cleaning, guiding, and shielding applications across multiple industries. Products include metal-backed strip brushes, formed brushes, staple set brushes, and specialty brushes sold with various channel and filament material configurations.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

SEALEZE® designs, engineers, and manufactures industrial brush-based sealing, cleaning, guiding, and shielding solutions. The core product lines include Metal-Backed Strip Brushes, XtraSeal Strip Brushes with membrane barriers, Ez-Flex metal-free flexible brushes, Staple Set tufted brushes, and Formed Strip Brushes (cups, arcs, coils, spirals, lever seals). Application-specific solutions include Data Center CoolBalance Grommets, Elevator Brush Solutions, and Building Envelope weatherseal products. All products are custom-configured and quote-based for industrial customers.

Product overview

SEALEZE® is an industrial brush solutions provider offering a comprehensive portfolio of brush-based products for sealing, shielding, cleaning, guiding, and gap-closing applications. The product line centers on Metal-Backed Strip Brushes (with nylon, metal, and specialty filaments), XtraSeal Strip Brushes (with membrane barriers for heavy-duty sealing), Ez-Flex Flexible Strip Brushes (metal-free for corrosive environments), Staple Set Brushes (custom tufted configurations), and Formed Strip Brushes (shaped into cups, arcs, coils, spirals, and lever seals). Supporting these core products are Brush Holders & Accessories including holders, punching options, mounting tabs, and rotary brush holders. The company also offers application-specific solutions including Data Center Grommets (CB10, CB11, CB22, CB33 series), Elevator Brush Solutions, and Building Envelope Solutions. Products serve diverse industries including aerospace, automotive, food processing, material handling, data centers, power generation, and transportation. All products are ISO 9001:2015 certified and manufactured in the USA.

Differentiator

Problem solved

Functional benefit

Brands

• CoolBalance®: Grommet and cable seal products for data centers, featuring brush seal technology for air containment.
• Ez-Flex
• Therm-L-Brush
• XtraSeal

Products and services

• Metal-Backed Strip Brush Straight strip brush with metal channel backing available in multiple channel sizes with galvanized steel or stainless steel channels and nylon, metal, or natural filaments for sealing, shielding, cleaning, and guiding applications in industrial manufacturing, food processing, and other industries.
• XtraSeal Strip Brush Heavy-duty sealing brush with a flexible membrane barrier sandwiched between filament layers, providing an impervious shield against debris and fluid sprays. Available in B, C, D, F, G sizes with galvanized steel or stainless steel channels for industrial sealing applications.
• Ez-Flex Strip Brush Metal-free flexible strip brush using nylon or polypropylene filament that conforms to contours and shapes metal-backed brushes cannot address. Effective in temperatures as low as -70°F and corrosive environments where metal would corrode.
• Staple Set Brush Custom-manufactured tufted brushes available in cylinder (radial), block (lag), strip, disc, or head (goblet) configurations for cleaning, guiding, conveying, and spreading applications across various industries.
• Formed Strip Brush Custom-shaped strip brushes formed into coils, spirals, cups, arcs, lever seals, and custom shapes. Formed using standard metal back, Ez-Flex, or XtraSeal strip brushes with in-house engineering support for application-specific configurations.
• Brush Holders & Accessories Aluminum brush holders in 8-foot or 10-foot lengths, mounting tabs, punching options, and rotary brush holder assemblies (D Series and G Series) for installing and mounting strip brushes in industrial applications.
• CoolBalance Data Center Grommets Brush seals and grommets for data centers including CB10 drop-in, CB11 in-floor custom, CB22 surface mount, and CB33 circular/split-top grommets designed to seal conditioned air within server cabinets and isolate hot from cold aisles while allowing cable pass-through.
• Elevator Brush Solutions Elevator door brush products designed to maintain elevator shaft environment, reduce air infiltration (up to 98.5%), and provide sound dampening. UL approved for use on 3-hour fire doors for elevator manufacturers and service companies.
• Building Envelope Solutions Weatherseal brush products for building envelopes that close gaps to prevent weather, dust, and pests from entering. Includes door sweeps, door jamb seals, astragal seals, overhead door brushes, and dock leveler seals for commercial and residential buildings.

Quantifiable outcome

• Preventing air infiltration by up to 98.5%
• +3 more outcomes

Named customers8 records

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Four partnerships are on record, tiered minor.

• National Insulation AssociationminorOthersIndustry association membership indicating participation in the insulation and building envelope industry standards and community.
• International Door AssociationminorOthersIndustry association membership demonstrating involvement in the door and access solutions industry.
• Material Handling IndustryminorOthersIndustry association membership indicating participation in material handling equipment and systems industry.
• American Brush Manufacturers AssociationminorOthersIndustry association membership in the brush manufacturing industry, indicating adherence to industry standards and participation in the brush manufacturing community.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Osborn: Parent company of Sealeze and a global manufacturer of industrial brushes, polishing tools, and surface treatment products. Directly comparable as the broader industrial brush portfolio from which Sealeze was carved out, serving overlapping customers in metal finishing, manufacturing, and surface preparation.
• Trelleborg Sealing Solutions: Global leader in polymer-engineered sealing solutions for aerospace, automotive, industrial, and energy markets. Comparable as a broad incumbent offering industrial sealing products, including brush seals for rotating equipment, addressing similar gap-closing and contamination-prevention applications as Sealeze.
• Schunk Group: German industrial group with carbon technology and brush products divisions producing carbon and graphite brushes for electric motors, slip rings, and industrial applications. Comparable as a broader incumbent offering specialized brush products with overlapping technical capabilities in carbon, graphite, and metal filament brushes for industrial sealing and current transfer.
• Morgan Advanced Materials: Global manufacturer of carbon, ceramic, and composite components including industrial brushes and sealing solutions. Comparable as a broad incumbent serving aerospace, energy, and industrial markets with overlapping technical materials expertise and brush seal product offerings for high-temperature and demanding applications.
• 3M Industrial Brushes: Diversified industrial conglomerate offering surface preparation brushes, abrasive brushes, and sealing products across manufacturing and construction. Comparable as a broad incumbent offering brush-based products with overlapping industrial customer base, though 3M's portfolio spans much broader categories beyond sealing.

Regional players

• Skega (part of Metso): Industrial rubber and polyurethane products including sealing solutions for mining, mineral processing, and heavy industrial applications. Comparable as a regional player in industrial sealing components serving heavy industry with overlapping high-temperature and abrasion-resistant sealing requirements.

Direct peers

• Helwig Carbon Products: US-based manufacturer of carbon brushes, brush holders, and grounding products for industrial motors and generators. Comparable as a direct peer in industrial brush products with similar custom manufacturing capabilities, US manufacturing footprint, and B2B sales-led model serving industrial OEMs.
• Koti Industrial Brushes: Industrial brush manufacturer producing strip brushes, cylinder brushes, and custom brush products for cleaning, sealing, and material handling applications. Comparable as a direct peer in industrial strip brush manufacturing serving similar applications in sealing, conveyor cleaning, and weathersealing.
• Mersen: Industrial brush manufacturer producing carbon brushes, brush holders, and sliding contacts for motors, generators, and industrial machinery. Comparable as a direct peer in custom industrial brush manufacturing with overlapping filament expertise, channel/housing engineering, and industrial customer base.
• Tanis Brush: US-based custom industrial brush manufacturer producing strip brushes, cylinder brushes, disc brushes, and custom brush solutions for industrial applications. Comparable as a direct peer in custom strip brush and industrial brush manufacturing with similar filament options, custom engineering capabilities, and B2B sales model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key highlights6 records

Customer concentration

• Xx.com/sealeze
• LinkedInlinkedin.com/company/sealeze

Compliance2 records

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 Sealeze