Hennig Gasket & Seals
Hennig Gasket & Seals is a fourth-generation, family-owned custom gasket and seal manufacturer and full-line industrial distributor, fabricating non-metallic gaskets in any configuration with sub-24-hour turnaround and distributing branded materials from Garlock, Flexitallic, KLINGER, and others to chemical, oil & gas, power, food, and industrial MRO customers.
- Company typePrivate
- Founded1920
- HeadquartersChicago, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Hennig Gasket & Seals does
Hennig Gasket & Seals Inc. is a fourth-generation family-owned custom gasket and seal manufacturer and full-line distributor founded in 1920 and headquartered in a modernized plant at 2350 West Cullerton Street in Chicago, Illinois. The company fabricates custom gaskets and seals in virtually any size, shape, or configuration from non-metallic materials including rubber, PTFE, graphite, fiber, compressed non-asbestos, cork, and sponge rubber, using in-house waterjet cutting (+/- .007" tolerance), CNC flash cutting (60" x 120" capacity, no tooling charges), 72-ton die cutting (thousands of dies in inventory), and skilled hand cutting, supplemented by optical precision reverse engineering. Beyond manufacturing, Hennig operates as a full-line distributor for premier branded gasket materials including Garlock (including Gylon PTFE), Flexitallic, KLINGER Thermoseal, Topog-E, JM Clipper, Durlon, Frenzelit, Teadit, Rubberlite, Warco Biltrite, Slade, Inertex, Leader, Pyrotek, and Allpax cutting tools, plus Delavan spray nozzles (over 30,000 SKUs).
Hennig Gasket & Seals firmographics
Firmographics- Name
- Hennig Gasket & Seals
- Legal name
- Hennig Gasket & Seals Inc.
- Website
- https://henniggasket.com
- Company type
- Private
- Founded year
- 1920
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Hennig Gasket & Seals is a fourth-generation, family-owned custom gasket and seal manufacturer and full-line industrial distributor, fabricating non-metallic gaskets in any configuration with sub-24-hour turnaround and distributing branded materials from Garlock, Flexitallic, KLINGER, and others to chemical, oil & gas, power, food, and industrial MRO customers.
- Ownership category
- akta.pro rank
Hennig Gasket & Seals industry classification
Industry- Product category
- Custom Industrial Gasket Manufacturing
- NAICS
- Gasket, Packing, and Sealing Device Manufacturing (339991), Rubber Product Manufacturing (3262), Other Rubber Product Manufacturing (32629)
- SIC
- Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Fabricated Rubber Products, Nec (3060)
- akta.pro primary industry
- Seals, Gaskets & Fluid Connectors (O-rings, packings, rotary seals, quick couplers) (IMAHAGAI)
- akta.pro secondary industry
- Seals, Gaskets & O-Rings (Industrial Elastomer) (IMANALAC)
Keywords
Where Hennig Gasket & Seals is headquartered
LocationHeadquarters
- HQ city
- Chicago
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Hennig Gasket & Seals business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D
Revenue model
- Custom Gasket & Seal Manufacturing: The company manufactures custom gaskets and custom seals in virtually any size, shape, or configuration from non-metallic materials. Manufacturing is done in-house using waterjet, flash, die, and hand cutting. Parts are manufactured to exact customer specifications from provided blueprints or reverse-engineered from sample parts. This is the primary revenue stream with same-day and 24-hour turnaround capabilities.
- Gasket Material Distribution: Full-line distributor of gasket materials, seals, and gasket/seal tools from top brands including Garlock, Topog-E, Rubberlite, Leader, Inertex, Warco Biltrite, KLINGER, Flexitallic, Teadit, Frenzelit, Slade, Allpax, and Durlon. Also distributes mechanical seals, hydraulic packing, spray nozzles, and gasket cutting tools. Revenue from markup on distributed materials and products.
- Stocked Gaskets & Industrial Supplies: Maintains inventory of pre-made industrial gaskets and seals (boiler gaskets, flange gaskets, spiral wound gaskets, non-asbestos products) and gasket supplies (gasket cutters, expansion joints, hydraulic packing, joint sealant, compression packing, spray nozzles, packing hooks, cutting boards, cutting blades) ready for same-day shipment.
- Engineering & Fabrication Services: Provides reverse engineering services, full engineering support, and custom fabrication from concept to delivery. A dedicated single point person coordinates projects from inquiry through delivery.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | Custom manufactured gaskets and seals - quote-based pricing |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels5 records
Hennig Gasket & Seals product offering
Product offeringCore offering
Hennig Gasket & Seals manufactures custom gaskets and seals in virtually any size, shape, or configuration from non-metallic materials (rubber, PTFE, graphite, fiber, compressed non-asbestos, cork, sponge rubber) using waterjet, flash, die, and hand cutting methods. The company also operates as a full-line distributor of branded gasket materials and sealing products from leading manufacturers including Garlock, Flexitallic, KLINGER, Topog-E, JM Clipper, Allpax, and Delavan, while maintaining an inventory of pre-made industrial gaskets and raw sheet/roll materials ready for same-day shipment.
Product overview
Hennig Gasket & Seals is a fourth-generation family-owned custom gasket and seal manufacturer serving diverse industrial sectors. The core product is custom gasket and seal fabrication, available in virtually any size, shape, or configuration, with manufacturing capabilities including waterjet cutting, flash cutting, die cutting, and hand cutting. The company maintains a large inventory of non-metallic gasket materials and can fulfill orders within 24 hours. The product portfolio consists of three integrated components: (1) Custom manufacturing services using waterjet, flash, die, and reverse engineering capabilities for bespoke parts; (2) An extensive finished goods catalog including Viton®, silicone, PTFE, Gylon®, EPDM, nitrile (Buna-N), neoprene, graphite, high temperature, spiral wound, food grade, compressed non-asbestos, cork, fiber, sponge rubber, flange, hydraulic packing, mechanical seals, and PTFE envelope gaskets; and (3) Raw material inventory of sheet and roll gasket materials in rubber (natural gum, SBR red, neoprene, nitrile, EPDM, Hypalon, Viton, silicone, polyurethane), compressed non-asbestos, fiber, graphite, ceramic fiber, cork, felt, PTFE, Gylon, open/closed cell sponge, and skirtboard rubber. The company also distributes branded products from Garlock, Flexitallic, KLINGER, Topog-E, JM Clipper, Allpax, and Delavan Spray Technologies. Ancillary offerings include gasket supplies (cutting boards, blades, cutters, packing hooks, expansion joints, joint sealant), and hydraulic packing products.
Differentiator
Problem solved
Functional benefit
Products and services
- Custom Gaskets & Seals Custom-manufactured gaskets and seals fabricated to customer specifications in any size, shape, or configuration from non-metallic materials, with turnaround under 24 hours. For industrial buyers in chemical, oil & gas, power, food processing, and MRO sectors.
- Waterjet Cutting Services CNC waterjet cutting for non-metallic gasket materials with +/- .007 inch tolerance, capable of cutting parts from 1/64 inch to 6 inches thick and producing gaskets up to 6' x 8', 5' x 13', or 80" x 80". For industrial customers needing precision gasket profiles.
- Flash Cutting Services Oscillating knife CNC flash cutting eliminating rule dies with no tooling charges, 60" x 120" capacity, cutting material from .005" to .250" thick. For customers needing gaskets up to 5' x 10' with smooth edges and minimal material loss.
- Die Cutting Services Steel rule die cutting using 72-ton presses producing parts up to 36" x 62", with an inventory of thousands of dies for rapid prototyping and production runs. For high-volume gasket production customers.
- Reverse Engineering Services Optical precision measuring equipment establishes all critical dimensions of parts up to 2' x 3' profile, with CAD drawings generated for any size part requiring reverse engineering. For customers needing to reproduce or replace obsolete gaskets.
- Stocked Industrial Gaskets & Seals Pre-manufactured industrial gaskets and seals including boiler gaskets, flange gaskets, spiral wound gaskets, and non-asbestos products available for same-day shipment. For industrial MRO and operations customers.
- Gasket Sheet & Roll Material Extensive inventory of non-metallic gasket sheet and roll materials including rubber, compressed non-asbestos, fiber, PTFE, graphite, ceramic fiber, cork, felt, and sponge materials in various thicknesses and sizes. For industrial customers and gasket fabricators.
- Viton (FKM) Gaskets & Seals Fluoroelastomer gaskets manufactured from Viton® (FKM) material with temperature range of -18°F to +400°F, resistant to oils, fuels, and chemicals. Available in Grades A, B, F, and Extreme. For chemical processing and oil & gas applications.
- Silicone Gaskets & Seals Silicone rubber gaskets available in commercial, specification, FDA, translucent, fluorosilicone, fiberglass reinforced, medical, and high/medium strength grades. Temperature range from -94°F to +500°F. For food, medical, and general industrial applications.
- Rubber Gaskets & Seals Custom rubber gaskets manufactured from Buna-N, Natural Gum, SBR, EPDM, Neoprene, FDA-approved, Polyurethane, and Viton materials. Includes cloth-inserted, diaphragm, and various elastomer options. For general industrial sealing.
- PTFE Gaskets, Seals & Washers PTFE gaskets, seals, and washers including virgin PTFE, glass-filled, carbon-filled, barium sulfate-filled, and expanded PTFE. Temperature range from -430°F to 500°F. For chemical processing and pharmaceutical applications.
- Gylon® Reinforced PTFE Gaskets Garlock's reinforced PTFE gasket material with reduced creep relaxation. Available in Styles 3500, 3504, 3510, 3540, and 3565 with different fillers for specific chemical resistance profiles. For aggressive chemical service.
- Spiral Wound Gaskets Multiple-ply metal and filler spiral gaskets from Garlock and Flexitallic brands. Filler options include ceramic, flexible graphite, PTFE, and mica graphite. Pressure ratings to 3,000 psi. For high-temperature and high-pressure flange applications.
- High Temperature Gaskets Gaskets designed for temperatures exceeding 750°F, including ceramic fiber (up to 2,300°F), woven stainless steel with graphite (up to 1,800°F), Frenzelit Novatec (up to 925°F), and spiral wound gaskets (up to 850°F). For power generation and high-heat industrial service.
- Food Grade (FDA) Gaskets FDA-compliant gaskets including white nitrile Buna-N, white neoprene, white EPDM, white Viton, FDA white silicone, and Gylon materials. For food processing, pharmaceutical, and medical applications requiring FDA compliance.
- Boiler Gaskets & Seals Manhole and handhole gaskets including Topog-E Series 180 molded rubber (rated to 380°F, 180 psi), Topog-E Series 2000 graphite foil (to 1,200°F), and custom EPDM formulations. For steam boiler and pressure vessel applications.
- Hydraulic Packing Garlock CHEVRON, GARTHANE, and SLUDGE-PAK hydraulic packing products with over 500 stock sizes. Includes flange packings, back-up rings, U-cups, vee-flex, piston cups, and urethane seals. For hydraulic cylinder and pump applications.
- Mechanical Seals Mechanical seal products with repair services for stuffing box applications in pumps and rotating equipment.
- Delavan Spray Nozzles Over 30,000 spray nozzle products from Delavan Spray Technologies including air atomizing, airless, flat spray, hollow cone, and solid cone nozzles for industrial applications.
- Gasket Cutting Tools & Supplies Allpax gasket cutter systems, cutting boards, cutting blades, packing hooks, expansion joints, and joint sealant for gasket fabrication and maintenance. For industrial maintenance personnel and gasket fabricators.
Quantifiable outcome
- Custom parts manufactured in under 24 hours
- +4 more outcomes
Companies that use Hennig Gasket & Seals
Customer profileNamed customers1 record
Segments10 records
Ideal customer profiles4 records
Hennig Gasket & Seals technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Hennig Gasket & Seals partnerships and signals
Strategic signalPartnerships
16 partnerships are on record, tiered core and minor.
- Garlock Sealing TechnologiescoreHennig Gasket & Seals is a full-line distributor for Garlock gasket materials including Blue-Gard series (3000, 3200, 3300, 3400, 3700, 3750, 3760), Garlock 9800/9850/9900, Garlock IFG5500, and Garlock FLEXSEAL spiral wound gaskets. Also distributes Gylon PTFE materials and Garlock hydraulic packing products (CHEVRON, GARTHANE, SLUDGE-PAK).
- FlexitalliccoreDistributor of Flexitallic spiral wound gaskets and non-asbestos compressed gasket materials including SF 1600, SF 2400/2800, SF 2420, SF 2440, SF 3300, SF 3500, SF 5000, and AF 2100. Also distributes Flexitallic's proprietary Thermiculite high-temperature sealing material.
- KLINGER (Thermoseal / Klingersil)coreFull-line distributor for KLINGER Thermoseal (Klingersil) compressed gasket materials including Klingersil C-4401, C-4430, and C-4408 wire-inserted variants. Products rated up to 750°F and 1500 psi for demanding industrial applications.
- JM ClippercoreJM Clipper seals distributor handling their full range of fiber gasket materials including first-generation compressed non-asbestos (SBR aramid fiber), third-generation nitrile-based materials (up to 700°F), PTFE-based materials (flexible to -350°F), and rubber/vegetable filled fiber sheet.
- Topog-E Gasket CompanycoreAuthorized distributor and strategic partner for Topog-E boiler gaskets including Series 180 molded rubber gaskets (rated to 380°F, 180 psi) and Series 2000 exfoliated graphite foil gaskets (rated to 1200°F) for steam pressure vessels.
- Allpax Gasket Cutter SystemsminorLong-standing distributor relationship for Allpax products including gasket cutters, cutting boards, cutting blades, center pins, heavy-duty cutter kits, and flexible packing hooks. Most popular items stocked for same-day shipping.
- Delavan Spray TechnologiesminorDistributor for Delavan Spray Technologies' entire product line of spray nozzles including air atomizing, airless, Dela-Fit, flat spray, hollow cone, and solid cone nozzles. Stocked items include over 30,000 different nozzles and component parts for industrial applications.
- PyrotekminorSupplies flexible graphite sheet material from Pyrotek in sizes up to 60" square and thicknesses from 1/32" to 1/4" for high-temperature and aggressive chemical sealing applications.
- Leader GasketminorDistributor for Leader spiral wound gaskets, heat exchanger gaskets, and metal gaskets. Products are available alongside the company's custom fabrication capabilities.
- Teadit Gasket MaterialsminorDistributor for Teadit gasket materials as part of the company's full-line distribution of branded non-metallic sealing materials.
- Frenzelit Gasket MaterialsminorDistributor for Frenzelit gasket materials including Novatec high-temperature materials rated to +925°F, as well as Novapress compressed gasket materials.
- Slade Gasket MaterialsminorDistributor for Slade gasket materials as part of the company's comprehensive branded material distribution offering.
- RubberliteminorDistributor for Rubberlite gasket materials including their closed cell sponge rubber products (e.g., SCE41B neoprene/EPDM/SBR blend) used in sealing and weatherstripping applications.
- DurlonminorDistributor for Durlon high-temperature CNA gasket materials (8300, 8900, HT1000) and related Durlon gasket products for demanding industrial sealing applications.
- Inertex (Innertex)minorDistributor for Inertex/Innertex gasket materials as part of the company's branded material distribution portfolio.
- Warco BiltriteminorDistributor for Warco Biltrite rubber gasket materials including their rubber sheet and gasket material product lines.
Scale indicators5 records
Recent moves4 records
Expansion highlights4 records
Hennig Gasket & Seals competitors and assessment
Company assessmentBroad incumbents
- John Crane: John Crane is a global leader in mechanical seals, couplings, and sealing-support systems serving oil & gas, power, chemical, and general industrial markets. While much larger and broader than Hennig (focused on rotating-equipment seals), it overlaps in mechanical seals, packing, and industrial gasket service.
- W.L. Gore & Associates: W.L. Gore & Associates manufactures expanded PTFE sealing products (GORE-TEX gaskets and packing) used across chemical processing, pharmaceutical, and industrial sealing. It is a much broader materials science company but competes directly with Hennig in high-performance PTFE gaskets and seals.
- James Walker: James Walker is a long-established global manufacturer of sealing products, gaskets, and compression packing serving oil & gas, chemical, power, and marine customers. It is broader in scope than Hennig (with international operations and a wider product portfolio) but competes head-to-head in industrial sealing solutions and packing.
Direct peers
- Garlock Sealing Technologies: Garlock Sealing Technologies (a subsidiary of EnPro Industries) is one of the largest manufacturers of gaskets, seals, and packing products globally and is also one of Hennig's primary brand-distribution partners. It competes directly with Hennig on custom gasket manufacturing and industrial sealing solutions across the same verticals (chemical, oil & gas, power).
- Gasket Resources Inc. Gasket Resources Inc. is a US custom gasket manufacturer and distributor specializing in cut gaskets, sheet materials, and sealing products for industrial customers. It is a direct peer in business model (custom manufacturer + distributor), target verticals (chemical, refining, MRO), and competitive positioning (speed, breadth, engineering support).
- All Seals Inc. All Seals is a US-based distributor and custom fabricator of O-rings, gaskets, seals, and hydraulic packing serving industrial MRO and OEM customers. It is a direct peer to Hennig in product mix (custom + distribution), customer segments (MRO/industrial), and service model (same-day quotes, in-house cutting).
- Frenzelit: Frenzelit manufactures high-performance gasket materials (Novatec, Novapress) used in chemical, power, and process-industry applications and is one of Hennig's branded gasket-material suppliers. It competes directly in the high-temperature compressed-sheet gasket segment served by Hennig.
- Teadit: Teadit is a global manufacturer of sealing products including gaskets, packing, and PTFE materials, and is one of Hennig's branded gasket-material suppliers. Teadit sells directly to industrial end-customers and competes with Hennig in custom and branded gasket fabrication across chemical processing, refining, and general manufacturing.
- Flexitallic: Flexitallic is a leading manufacturer of static-sealing products, including spiral wound gaskets and Thermiculite high-temperature sealing materials, and is another core brand Hennig distributes. Flexitallic serves the same refining, petrochemical, and power-generation customers and competes with Hennig for custom and branded gasket work.
- Klinger (Rich. Klinger): KLINGER manufactures compressed fiber gaskets (Thermoseal/Klingersil) and other sealing products for industrial applications. As one of Hennig's principal brand-distribution partners, KLINGER competes in the same compressed non-asbestos gasket space and serves overlapping chemical, power, and process-industry customers.
Market position
Strengths3 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Hennig Gasket & Seals social profiles
Digital presenceHennig Gasket & Seals financial estimates
Financial estimateRevenue estimate
Valuation estimate
Hennig Gasket & Seals leadership team
Management profileNumber of profiles
Profiles1 record
Hennig Gasket & Seals funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Hennig Gasket & Seals M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Hennig Gasket & Seals
What does Hennig Gasket & Seals do?
Hennig Gasket & Seals manufactures custom gaskets and seals in virtually any size, shape, or configuration from non-metallic materials (rubber, PTFE, graphite, fiber, compressed non-asbestos, cork, sponge rubber) using waterjet, flash, die, and hand cutting methods. The company also operates as a full-line distributor of branded gasket materials and sealing products from leading manufacturers including Garlock, Flexitallic, KLINGER, Topog-E, JM Clipper, Allpax, and Delavan, while maintaining an inventory of pre-made industrial gaskets and raw sheet/roll materials ready for same-day shipment.
Is Hennig Gasket & Seals a public or private company?
Hennig Gasket & Seals is a private company. It is classified as family owned and is currently operating.
When was Hennig Gasket & Seals founded?
Hennig Gasket & Seals was founded in 1920. It employs 11 to 50 people.
Where is Hennig Gasket & Seals based?
Hennig Gasket & Seals is headquartered in Chicago, United States, in the North America region.
How does Hennig Gasket & Seals make money?
Four revenue lines are on record. Custom Gasket & Seal Manufacturing is the primary driver. The others are gasket Material Distribution, stocked Gaskets & Industrial Supplies and engineering & Fabrication Services.
Who are Hennig Gasket & Seals's main competitors?
Broad incumbents on record are John Crane, W.L. Gore & Associates and James Walker. Direct peers are Garlock Sealing Technologies, Gasket Resources Inc., All Seals Inc., Frenzelit, Teadit, Flexitallic and Klinger (Rich. Klinger).
Does Hennig Gasket & Seals have an API?
No public API is recorded for Hennig Gasket & Seals.
What industry is Hennig Gasket & Seals in?
Hennig Gasket & Seals's product category is Custom Industrial Gasket Manufacturing. Its primary akta.pro industry code is IMAHAGAI, Seals, Gaskets & Fluid Connectors (O-rings, packings, rotary seals, quick couplers), with a secondary code of IMANALAC, Seals, Gaskets & O-Rings (Industrial Elastomer). Its NAICS code is 339991 and its SIC code is 3050.