What Durlon Sealing Solutions does

Durlon Sealing Solutions is an international manufacturer of high-performance industrial gaskets and engineered sealing products, operated by Triangle Fluid Controls Ltd. and headquartered in Downingtown, Pennsylvania with operational entities in Belleville and Sarnia, Ontario; La Porte, Texas; Nantong, China; and Singapore. The company serves chemical processing, oil and gas, power generation, pulp and paper, food and beverage, pharmaceutical, marine, mining, water and wastewater, OEM, primary metals, and rail tank car customers — a portfolio spanning twelve process-industry verticals — with a product range that includes compressed non-asbestos (CNA) sheet gaskets (Durlon 7910/8300/8500/8900), PTFE gaskets (9000/9000N/9002/9200/9600/Virgin/Joint Sealant), flexible graphite (FL316/CFG), metallic and semi-metallic gaskets (spiral wound, Kammprofile/Durtec, RTJ), high-temperature platforms (HT1000 phlogopite mica, DRI-ETG), low seating stress gaskets (LT100, RCA), isolation kits (iGuard), and rail tank car gaskets (SecureSnap).

The company's competitive moat is built on proprietary materials technology and an unusually deep third-party certification stack: HT1000 phlogopite mica seals to 1,000°C with less than 5% weight loss at 800°C, DRI-ETG is the only gasket to pass API 6FB Type 2 offshore fire test with zero leakage, and Durtec uses a patented solid metal core Kammprofile construction. Certifications include FDA 21 CFR 177.1550/177.2600, NSF/ANSI 61, USP Class VI, API 607, API 6FA, API 6FB Type 2, ABS Type Approval, WRAS, TA-Luft VDI 2440, BAM oxygen service, Chlorine Institute Pamphlet 95, and EU 1935/2004. Custom manufacturing is supported by CNC flash cutting, 1,000-3,000W fiber laser cutting, 5-axis waterjet cutting at 400 IPM with ±0.005 inch tolerance, proprietary PTFE welding for large-diameter gaskets, spiral wound winding machines, Modula automated vertical storage, Amtec torque testing, and helium mass spectrometer leak testing.

Durlon operates a direct-sales model anchored by a Request-A-Quote funnel on durlon.com supplemented by regional in-person technical support from each subsidiary's field engineering team. Pricing is custom-quoted per material, dimension, and application specification — there is no published price list. Revenue is generated through one-time sales of manufactured gasket materials, custom cut/fabricated gaskets, OEM-specific runs, and supporting digital resources (iGasket+, 3D Interactive Industrial Videos, Behind the Seal podcast, Gasket Fundamentals and Installation Training). The company is privately held with no disclosed funding rounds, debt facilities, or ownership transactions in the source data.

Name

Durlon Sealing Solutions

Legal name

Durlon Sealing Solutions

Website

https://durlon.com

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

Durlon Sealing Solutions is a global manufacturer of high-performance industrial gaskets and engineered sealing products, including compressed non-asbestos, PTFE, flexible graphite, metallic, semi-metallic, and extreme-temperature solutions. It serves chemical processing, oil and gas, power generation, and other process industries through wholly-owned regional manufacturing entities.

Ownership category

akta.pro rank

Product category

Industrial Gasket and Sealing Solutions

NAICS

Gasket, Packing, and Sealing Device Manufacturing (339991)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050)

akta.pro primary industry

Seals, Gaskets & Fluid Connectors (O-rings, packings, rotary seals, quick couplers) (IMAHAGAI)

akta.pro secondary industries

Aerospace Seals, Gaskets, O-Rings & Elastomeric Components (IMABANAF), Sealants, Adhesives, Gaskets & Marine Elastomers (IMAJAKAL)

Keywords

• Industrial gasket manufacturing
• Sealing solutions
• PTFE sheet gaskets
• Spiral wound gaskets
• Flange isolation kits

Headquarters

HQ city

Downingtown

HQ country

United States

HQ region

North America

Offices7 records

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 Gasket and Sealing Product Sales: Core revenue from design, manufacturing, and supply of high-performance industrial gasket materials and sealing solutions. Product categories include CNA sheet gaskets, PTFE gaskets (virgin, filled, expanded), flexible graphite sheet gaskets, metallic gaskets, semi-metallic gaskets (spiral wound, Kammprofile, RTJ), high-temperature gaskets (HT1000, ETG), low seating stress gaskets, NSF/ANSI 61 certified gaskets, isolation kits, and rail tank car gaskets. Additional custom gasket manufacturing services and application-specific sealing solutions contribute to revenue.

Go-to-market motion1 record

Distribution channels6 records

Marketing channels10 records

Core offering

Durlon Sealing Solutions designs, manufactures, and supplies industrial gasket materials and engineered sealing solutions for fluid sealing applications. Its portfolio spans compressed non-asbestos (CNA) sheet gaskets, PTFE gaskets (filled, expanded, and virgin), flexible graphite sheet gaskets, metallic and semi-metallic gaskets (spiral wound, Kammprofile/Durtec, RTJ), high-temperature mica-based gaskets (HT1000, DRI-ETG rated to 1,000°C), low seating stress gaskets, flange isolation kits, and rail tank car gaskets. Durlon also provides custom gasket manufacturing services (CNC/laser/waterjet cutting, PTFE welding, spiral wound winding) and technical support resources covering material selection, installation training, and application troubleshooting.

Product overview

Durlon Sealing Solutions is an international industrial gasket company offering a comprehensive portfolio of engineered sealing products organized into distinct categories: CNA (Compressed Non-Asbestos) sheet gaskets including the 7910, 8300, 8500, and 8900 series for various service conditions; PTFE gaskets encompassing filled grades (9000, 9000N, 9002, 9200, 9400), expanded PTFE (9600), virgin PTFE, and Joint Sealant; flexible graphite products including FL316 and CFG for high-temperature applications; and metallic/semi-metallic gaskets including Spiral Wound Gaskets (SWG), Kammprofile/Durtec, RTJ, and extreme temperature (ETG) solutions. The portfolio also includes specialized products such as HT1000 phlogopite mica gaskets for temperatures up to 1,000°C, isolation kits (iGuard), rail tank car gaskets (SecureSnap), and low seating stress gaskets (LT100). Supporting digital tools include the iGasket+ technical platform and 3D interactive industrial videos. Custom manufacturing capabilities encompass CNC cutting, laser metal cutting, water jet cutting, PTFE welding, and SWG winding for OEM applications. The company serves critical industries including chemical processing, oil & gas, power generation, pulp & paper, food & beverage, pharmaceutical, marine, mining, water treatment, primary metals, and rail tank cars across North America, Europe, Asia, and other international markets.

Differentiator

Problem solved

Functional benefit

Brands

• iGuard: Flange isolation and electrical isolation gasket kit solutions
• Durtec
• SecureSnap
• RCA
• iGasket+
• Behind the Seal

Products and services

• Durlon 7910 Quality commercial grade compressed non-asbestos sheet gasket material specifically developed to meet NSF/ANSI 61 requirements for potable water applications. For use in moderate service conditions including water treatment products manufactured, distributed, or sold in North America.
• Durlon 8300 Premium grade compressed non-asbestos sheet gasket material for steam and hydrocarbon services in refining, petrochemical, and power generation industries. Engineered to handle extremes of pressure and temperature.
• Durlon 8500 High-performance compressed non-asbestos gasket material for process industries including pulp & paper, food & beverage, pharmaceutical, hydrocarbon, chemical, refinery, and general industry. Suitable for oils, water, steam, and new generation refrigerants; conforms to FDA 21 CFR 177.2600.
• Durlon 8900 Premium grade compressed non-asbestos sheet gasket material for service conditions up to 496°C (925°F), suitable for saturated and superheated steam, oil, dilute acids and alkalis, hydrocarbons, and solvents. Fire test certified to ANSI/API 607 6th edition with zero leakage.
• Durlon 9000 Filled PTFE gasket material with inorganic fillers that prevent wicking and conform to FDA 21 CFR 177.1550. For use in chemical, pulp & paper, food & beverage, and general industrial applications requiring resistance to highly aggressive chemicals. Certified WRAS, USP Class VI, ABS-PDA, BAM oxygen service, API 6FA fire test.
• Durlon 9000N Unpigmented white filled PTFE gasket material approved for liquid chlorine, caustics, gaseous oxygen, and high purity pharmaceutical applications. Conforms to FDA, USP Class VI, and ABS-PDA certifications.
• Durlon 9002 Specialized PTFE gasket material for cryogenic sealing and extreme oxygen service. Passes gaseous oxygen tests up to 260°C (500°F) and 52 bar (754 psi) as well as BAM liquid oxygen mechanical impact tests.
• Durlon 9200 Filled PTFE gasket material with barium sulfate fillers for aggressive chemicals including caustics, hydrogen peroxide, sodium hypochlorite, and nitric acid. Used extensively in railroad tank-car applications; approved for food contact per EC 1935/2004 and EU 10/2011.
• Durlon 9600 Expanded PTFE gasket made with pure PTFE resins for process piping and equipment in chemical, pulp and paper, food and beverage applications. Suitable for sealing flanges with irregular surfaces and resistant to cold flow. USP Class VI at 121°C and ABS-PDA certified.
• Durlon Virgin PTFE High-performance PTFE product made with pure PTFE resins for piping and equipment in chemical and general industrial applications where resistance to highly aggressive chemicals including hydrofluoric acid is required. Conforms to FDA 21 CFR 177.1550.
• Durlon Joint Sealant Highly fibrillated expanded PTFE form-in-place sealant supplied on spools with adhesive backing for gasketed joints. Ideal for worn flanges of all sizes and conforms to FDA 21 CFR 177.1550 requirements.
• Durlon HT1000 Phlogopite mica paper gasket material impregnated with inorganic binder for extreme temperature sealing up to 1,000°C (1,832°F). Provides less than 5% weight loss at 800°C as a non-toxic, non-fibrous, fireproof alternative to asbestos. Available in S90, L316, and T316 styles and passed API 607 4th edition with Exxon modifications.
• Durlon SWG (Spiral Wound Gaskets) with DRI-ETG Spiral wound gaskets combining a metallic winding with a softer filler for high-pressure and high-temperature applications in oil and gas, refining, and power generation. The DRI-ETG variant combines oxidation-limit material with flexible graphite stability properties and HT1000 mica-phillosilicate for double protection; it is the only gasket to pass API 6FB Type 2 offshore fire test with zero leakage.
• Durlon Kammprofile (Durtec) Metallic gasket with specially designed machined solid metal core featuring serrated concentric grooves on top and bottom faces with soft facing layers. Patented solid metal core technology provides virtually unbreakable construction. Available 1/2 inch to 157 inch with parallel and convex cores, floating and integral RC options.
• Durlon RTJ (Ring Type Joints) Metallic gaskets used in heavy-duty bolting applications providing robust sealing in flanged joints and assemblies for high-pressure and high-temperature applications.
• Durlon ETG (Extreme Temperature Gasket) Industry-leading sealing solution for gasket applications exposed to extreme temperatures typically exceeding 650°C (1,200°F) up to 1,000°C (1,832°F). Combines oxidation limit material with flexible graphite stability properties.
• Durlon LT100 Gasket designed for applications where lower bolt load or lower seating stress is required (e.g., FRP, PVC, and other non-metallic flanges).
• Durlon iGuard Isolation Kit Flange isolation and electrical isolation gasket kit solutions for preventing galvanic corrosion and providing electrical isolation in pipeline systems.
• SecureSnap PTFE rail tank car gaskets for industrial sealing applications in railroad tank-car environments, including hazardous and non-hazardous cargo.
• Durlon RCA (Reduced Contact Area) Full face gasket with reduced contact area configuration that lowers seating stress at a given torque level while preventing flange rotation. Compatible with standard sheets for cost-effective production on FRP, PVC, and other non-metallic and metallic flanges.
• Durlon Flexible Graphite Sheet Gaskets (FL316) Flexible graphite gasket materials providing outstanding thermal stability for high-temperature applications such as steam services and exhaust systems.
• HT1000 Paste High temperature sealing compound designed for use with HT1000 sheet material, enabling users to create single-piece gaskets from cost-effective mitered segments.
• Durlon CFG (Corrugated Flexible Graphite) Corrugated flexible graphite gaskets for industrial sealing applications requiring high-temperature performance.
• Custom Gasket Manufacturing Capabilities Custom gasket design, material selection support, custom dimensions and performance requirements, and application-specific sealing solutions including CNC flash cutting, fiber laser cutting (1000-3000W, up to 25/32 inches), 5-axis waterjet cutting (400 IPM, ±0.005" precision, sheets up to 6'6 x 10 feet), CNC lathe turning, PTFE welding, and spiral wound winding. Custom metallurgy available across an extensive alloy inventory.

Quantifiable outcome

• HT1000 maintains less than 5% weight loss at 800C, compared to vermiculite-based products which show significantly higher weight loss under the same conditions.
• +3 more outcomes

Segments12 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature17 records

Partnerships

Seven partnerships are on record, tiered core and supporting.

• Durabla Canada Ltd.coreOthersPart of the Durlon global group of industrial gasket companies. Serves as the Canadian entity within the Durlon brand network, manufacturing and distributing Durlon sealing products in Canada. Located in Belleville, Ontario.
• Triangle Fluid Controls Ltd.coreOthersPart of the Durlon global group, Triangle Fluid Controls Ltd. operates as the parent company for Durlon sealing solutions, managing North American operations from Belleville and Sarnia, Ontario. Phone: 866-537-1133.
• Gasket Resources Inc.coreOthersPart of the Durlon global group, Gasket Resources Inc. serves as the US operational entity with manufacturing and sales from Downingtown, PA and La Porte, TX. Phone: 866-707-7300.
• Durabla Fluid Controls (Nantong) Co. Ltd.coreOthersPart of the Durlon global group, this China-based manufacturing facility produces Durlon sealing products for Asian markets. Located in Nantong, Jiangsu Province, China.
• Durabla Asia Pte Ltd.coreOthersPart of the Durlon global group, Durabla Asia Pte Ltd. serves as the Asia-Pacific hub for Durlon sealing solutions. Located in Singapore at Vision Exchange.
• Yarmouth Research and TechnologysupportingTechnology or IntegrationIndependent testing facility that authenticated and certified the DRI-ETG SWG API 6FB Type 2 fire test results. Certified by a professional engineer for customer confidence in test data.
• SGL Group (SIGRAFLEX APX2)supportingTechnology or IntegrationSGL Group supplies SIGRAFLEX APX2, a high-performance oxidation-resistant flexible graphite material used in Durlon DRI-ETG spiral wound gaskets for extreme temperature applications.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Flexitallic: Flexitallic is a global leader in spiral wound gaskets and engineered sealing solutions, particularly for oil & gas, petrochemical, and power generation — a direct competitor in semi-metallic, metallic, and high-temperature categories where Durlon's HT1000 and DRI-ETG compete.
• Lamons: Lamons is a major manufacturer of industrial gaskets and sealing products, including spiral wound, Kammprofile, and soft cut gaskets, serving oil & gas, refining, and chemical processing — closely comparable to Durlon's semi-metallic and metallic product lines.
• Donit Tesnit: Donit Tesnit (Slovenia-based) manufactures compressed fiber sheet gaskets, PTFE, and graphite sealing products for chemical, petrochemical, and food industries — comparable mid-sized European specialist with a similar custom manufacturing and certification-driven go-to-market approach.
• Klinger: Klinger (Austria-based) is a leading European manufacturer of industrial gaskets, sealing products, and level measurement equipment serving chemical, petrochemical, power generation, and oil & gas — directly overlapping Durlon's portfolio across CNA, PTFE, graphite, and spiral wound gaskets.
• Teadit: Teadit (Brazil-headquartered, global) manufactures gaskets, packing, and sealing products for chemical processing, oil & gas, pulp & paper, and mining — directly competing with Durlon in CNA, PTFE, flexible graphite, and spiral wound categories with similar global manufacturing footprint.
• James Walker: James Walker (UK-based) is a global sealing solutions provider offering gaskets, packing, and molded products for oil & gas, chemical, and power generation — a direct competitor across Durlon's core product categories with strong presence in EMEA markets where Durlon is comparatively underrepresented.
• Leader Gasket Technologies: Leader Gasket Technologies is a North American manufacturer of industrial gaskets including sheet, spiral wound, and Kammprofile products for chemical, refining, and OEM customers — comparable mid-sized specialist competing directly with Durlon in core CNA and semi-metallic categories.

Emerging players

• IDT (Industrial Gasket & Shim): IDT is a North American custom gasket manufacturer specializing in cut gaskets, sheet materials, and rapid-turn custom orders via CNC and waterjet cutting — directly comparable to Durlon's custom manufacturing capabilities and target customer profile of MRO and small-batch industrial buyers.

Regional players

• Valqua (Nippon Valqua Industries): Valqua is a Japanese manufacturer of sealing materials, gaskets, and fluoropolymer products serving semiconductor, chemical, and industrial markets across Asia — comparable in product portfolio (PTFE, CNA, spiral wound) and a relevant regional peer given Durlon's Singapore and China manufacturing footprint.

Broad incumbents

• Garlock (EnPro Industries): Garlock, part of EnPro Industries, is one of the largest global manufacturers of fluid sealing products including gaskets, packing, and sealing devices for the same chemical, oil & gas, power, and pulp & paper verticals Durlon serves. Direct competitive overlap across CNA sheet, PTFE, spiral wound, and Kammprofile product categories.

Market position

Strengths6 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/durlon
• Instagraminstagram.com/durlon
• YouTubeyoutube.com/@DurlonSealingSolutions
• Xx.com/durlonsealing

Compliance13 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries5 records

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 Durlon Sealing Solutions