TT Gaskets

What TT Gaskets does

TT Gaskets (Tampereen Tiivisteteollisuus Oy) is an independent, family-owned Finnish manufacturer of industrial gaskets and sealing solutions, founded in 1943 and headquartered at Alasniitynkatu 14, Tampere. The company operates a vertically integrated production footprint — CNC, water-jet and laser cutting, eccentric pressing, and in-house mould tooling for rubber and rubber-to-metal products — and employs approximately 80 people at the Tampere facility, which was expanded in 2020 by an additional 3,000 m². Its product portfolio spans flat, spiral-wound, camprofile, metal-jacketed, pressed-metal, rubber-metal, and metal-eyelet gaskets, along with packings, seal kits, moulded rubber products, metallic components (brackets, plates, shims), and insulation materials. A proprietary material brand — Micaseal Suniflex, a mica-based gasket rated to 1000°C peak / 900°C continuous with API Fire Safe approval — is complemented by an extensive third-party material library (TESNIT, GRAFILIT, SIGMA, PTFE SC1100, SIGRAFLEX, AFM 34, NBR/SBR, FKM Viton, EPDM, CR/SBR, THERMICULITE). The company is described as the Nordic market leader in flange gaskets and pursues a stated strategic goal of becoming the leading independent gasket supplier in Europe.

The business model is direct B2B enterprise sales, organized by country/region with dedicated contact persons in Finland, Sweden, Germany, China, and the Americas; >50% of products are exported. Pricing is fully quote-based with no published price list, consistent with high-mix custom manufacturing. Revenue mechanics blend one-time product sales (custom gaskets, seal kits, metal products) with fee-bearing services — Fast Track 24-hour delivery, design and R&D, on-site shutdown services via the TTG Mobile Factory, RFID-managed TTG Smart Container inventory, EDI and Kanban/VMI replenishment, sealing consultation, and EN 1591-4 flange assembly training delivered in partnership with TAKK. Customer segments span 12 verticals: pulp and paper, energy (including nuclear and wind), chemical and petrochemical, engine and motor, mining and minerals, marine, valve, food processing, lighting, HVAC, electrical equipment, and global industrial OEMs. The customer base consists entirely of unnamed enterprise accounts; no individual customer logos are disclosed.

The company is third-generation family-owned, led by Chairman/owner Matti Arpiainen (recipient of the Yrittäjäneuvos title from the President of Finland) and CEO/owner Aleksi Arpiainen, with board members Eero Tomi (former CEO of AGCO Power Oy) and Kari Neilimo (former President of SOK). It holds a stack of certifications (ISO 9001/14001/45001 by DNV, IATF 16949, API Fire Safe, FDA 21 CFR 177.2600, EC 1935/2004) and was awarded EcoVadis Gold (top 3% globally, 97th percentile) in 2025; it has been Scope 1 and 2 carbon neutral with an own solar plant covering approximately 30% of annual energy needs and 100% certified renewable energy. The company was recognized as Finland's Subcontractor of the Year in 2016 and currently holds an AAA credit rating.

Name

TT Gaskets

Legal name

Tampereen Tiivisteteollisuus Oy

Website

https://tt-gaskets.fi

Company type

Private

Founded year

1943

Operating status

Operating

Headcount range

51–100 employees

Short description

TT Gaskets (Tampereen Tiivisteteollisuus Oy) is a third-generation, family-owned Finnish manufacturer founded in 1943 that produces industrial gaskets, sealing solutions, metallic components, and insulation for OEMs and process-industry customers across 12 verticals globally.

Ownership category

akta.pro rank

Product category

Industrial Sealing Products

NAICS

Gasket, Packing, and Sealing Device Manufacturing (339991), Motor Vehicle Metal Stamping (336370)

SIC

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

akta.pro industry

PRIMARYIMAHAGAI

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

Industrials, Manufacturing & Construction/Industrial Machinery & Heavy Equipment/Fluid Power & Motion Control Equipment

SECONDARYIMANALAC

Seals, Gaskets & O-Rings (Industrial Elastomer)

Industrials, Manufacturing & Construction/Plastics & Rubber Manufacturing/Industrial Rubber Products (Hoses, Belts, Seals)

SECONDARYIMACAKAI

Automotive Weatherseals, Gaskets & Sealing Systems Manufacturing (Door/Window/Trunk Seals)

Industrials, Manufacturing & Construction/Automotive & Mobility Manufacturing/Automotive Interior & Exterior Components Manufacturing (Seats/Trim/Glazing)

Keywords

• Industrial gaskets
• Sealing solutions
• Spiral wound gaskets
• Flange gaskets
• Custom gaskets

Headquarters

HQ city

Tampere

HQ country

Finland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Gasket and sealing product sales: Manufacturing and sale of flat gaskets, spiral wound gaskets, camprofile gaskets, metal-jacketed gaskets, pressed metal gaskets, rubber-metal gaskets, moulded rubber products, packings, gaskets with metal eyelets, and custom gasket geometries. Products are sold as one-time purchases or as part of recurring seal kit and spare parts orders. Over 50% of products exported to Nordic, Central European, Asian, South American and North American markets.
2. Metal products (brackets, plates, shims): Manufacture and sale of metal components including brackets, plates, and shims (adjustment plates) in carbon steel, stainless steel, galvanized steel, brass, aluminium, and bronze. Produced in-house using laser cutting and eccentric press processes. Covers both small batches and high-volume production runs.
3. Insulation products: Supply of thermal, electrical, and acoustic insulation materials and custom-cut parts for HVAC, industrial, and transportation applications. Materials include foam rubber, foam plastics, polyester fibres, and recycled polyurethane.
4. Services (Fast Track, Design, Shutdown, EDI, Kanban, Training): Fee-bearing services including Fast Track 24-hour delivery, design and R&D services, shutdown/mobile factory services, EDI integration, Kanban inventory management, gasket training and consultation, and flange assembly certification training (EN 1591-4) in partnership with TAKK.

Pricing tiers

Go-to-market motion1 record

Distribution channels6 records

Marketing channels8 records

Core offering

TT Gaskets (Tampereen Tiivisteteollisuus Oy) is an independent family-owned Finnish manufacturer that designs, produces, and supplies industrial gaskets and sealing products — flat, spiral-wound, camprofile, metal-jacketed, pressed-metal, rubber-metal, moulded rubber, and packing products — together with custom metal components (plates, brackets, shims), insulation materials, and a range of value-added services including 24-hour Fast Track delivery, gasket re-engineering, on-site shutdown manufacturing via Mobile Factory and Smart Container, design/R&D, sealing and EN 1591-4 flange assembly training, EDI and Kanban inventory integration, and the TTG Smart Tracking RFID authenticity service for industrial OEMs and process manufacturers.

Product overview

TT Gaskets (Tampereen Tiivisteteollisuus Oy) operates as a global independent family-owned manufacturer of industrial sealing solutions founded in 1943, headquartered in Tampere, Finland. The product portfolio is organized around three core pillars: (1) a comprehensive range of gasket and sealing products — from flat gaskets and custom-made gaskets to semi-metallic gaskets (spiral wound, camprofile, metal-jacketed, pressed metal, rubber-metal, and gaskets with metal eyelets), packings, seal kits, moulded rubber products, and metal products (brackets, plates, shims); (2) insulation products (thermal, electrical, and acoustic); and (3) a proprietary material brand (Micaseal Suniflex) alongside an extensive third-party material portfolio (TESNIT, GRAFILIT, SIGMA, PTFE SC1100, SIGRAFLEX, AFM 34, NBR/SBR, FKM Viton, EPDM, CR/SBR, THERMICULITE). The company distinguishes itself through a full suite of service offerings — Fast Track 24-hour delivery, design/R&D services, gasket re-engineering, shutdown services (mobile factory and smart container), sealing training, flange qualification training, EDI connectivity, and Kanban inventory management — as well as the TTG Smart Tracking service for product authentication and traceability. TT Gaskets' offering is sold across twelve industry verticals: food processing, energy, mining and minerals, metal, marine, chemical and petrochemical, engine and motor, environmental technology, valve, HVAC, pulp and paper, and lighting.

Differentiator

Problem solved

Functional benefit

Products and services

• Flat Gaskets Standard and custom flat/flange gaskets manufactured from fiber, graphite, PTFE, and plastic materials for demanding industrial applications including pipe flanges, cylinder heads, and oil sumps, with single-piece sizes up to 2000 mm and segmented gaskets for larger diameters using tongue-and-groove joints.
• Custom-made Gaskets Tailor-made gaskets designed and manufactured to exact customer specifications, drawings, or reverse-engineered from existing samples, covering both geometry and material selection for unique industrial applications.
• Seal Kits Pre-packaged gasket kits with custom branding, QR codes, and security holograms, containing all components needed for specific repair or maintenance operations, ranging from single gaskets to hundreds of parts per kit.
• Packings Braided packing seals for centrifugal and piston pumps, valves, mixers, mills, and filters, available in round or square geometries from 3 mm diameter in PTFE, carbon, graphite, and custom materials.
• Spiral Wound Gaskets V-shaped spiral-wound gaskets with metal strip and soft filler, featuring outer guide ring and inner support ring, for high-pressure and high-temperature applications in power plants, refineries, and pulp mills, ranging from DN15 to 4000 mm diameter.
• Camprofile Gaskets Steel-strip core gaskets with profiled sealing surfaces and soft facing materials such as graphite or PTFE, offering excellent sealing at low surface pressures and high pressure-shock resistance, conforming to EN, ASME, and GOST standards.
• Metal-jacketed Gaskets High-surface-pressure metal-jacketed gaskets with a ceramic-fiber or graphite core encased in a metal shell, offering excellent creep resistance and moldability, used primarily in petrochemical, chemical, and heat exchanger applications.
• Rubber Metal Gaskets Composite gaskets with thin rubber layers bonded to a metal core, providing excellent compressibility at low surface pressures, high temperature resistance, and vibration damping, with NBR or FPM rubber grades.
• Pressed Metal Gaskets Custom-pressed solid metal gaskets made from high-temperature-resistant spring steels such as AISI 301, 309, 304, or 316, designed for chemically aggressive or high-temperature environments where rubber-coated metal gaskets are unsuitable.
• Gaskets with Metal Eyelets Gaskets fitted with metal (fire) eyelets — typically EN 1.4571 (AISI 316Ti) — that protect the core material from erosion by high-velocity media, thermal degradation, chemicals, and pressure shocks, widely used in chemical, petrochemical, and power plant applications.
• Moulded Rubber and Metal-to-Rubber Bonded Products Custom moulded rubber and rubber-to-metal bonded products for high-performance sealing, cushioning, and insulation, manufactured from NBR, HNBR, EPDM, CR, FKM, and silicone materials, certified IATF 16949:2016, FDA food-grade, and EC 1935/2004 compliant.
• Plates Metal plates cut from aluminium, carbon steel, stainless steel, brass, aluminium bronze, tin bronze, and copper, ranging from 0.05 mm to 20 mm thickness, produced via laser cutting for small batches or automated eccentric pressing for large volumes.
• Brackets Custom-manufactured metal brackets for component assembly, support, and guidance applications, produced from aluminium, carbon steel, stainless steel, and copper, with bending and surface treatment (zinc plating) services, typically 0.1–5.0 mm thick.
• Shims Precision metal shims for adjusting clearances and tolerances in final assembly, available from 0.05 mm to 20 mm thick in carbon steel, stainless steel, galvanised steel, brass, and aluminium, including multi-layer laminated variants.
• Insulation Thermal, electrical, and acoustic insulation solutions cut from cellular rubber, foam, polyester fibres, recycled polyurethane, and polyether foams, tailored for HVAC systems, enclosures, and machinery, with fire-rated options.
• Micaseal Suniflex TT Gaskets' own mica-based gasket material with 316L stainless steel insert, rated for continuous temperatures up to 900°C and peak temperatures up to 1000°C, with broad chemical resistance and API Fire Safe approval, available in 1.3, 2.0, and 3.0 mm thicknesses.
• Fast Track Service Priority manufacturing and shipping service delivering finished gasket products within 24 hours of confirmed order, applicable to all flat products made from soft materials, with maximum single-piece dimensions of 1000 × 1000 mm.
• Design Services Product design and R&D services for gasket solutions, including reverse engineering, compression and recovery analysis, FEM analysis, stress and pressure testing, and custom test rigs, leveraging over 80 years of sealing expertise.
• Gasket Re-engineering Reverse engineering service that reconstructs new replacement gaskets from old samples using precision video measurement equipment — without requiring original drawings — completing straightforward cases in seconds.
• Shutdown Services On-site gasket production and maintenance services during plant shutdowns, delivered via TTG Mobile Factory (a mobile gasket factory in a container, 1–2 personnel) and TTG Smart Container (a managed storage container with RFID tracking), eliminating lead times by producing at the plant site.

Quantifiable outcome

• Fast Track orders shipped within 24 hours of confirmed order
• +5 more outcomes

Named customers10 records

Segments10 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Nine partnerships are on record, tiered minor and core.

• DNVminorImplementation/ SI/ Consulting Partner · 1 January 2025DNV serves as the certifying body for TT Gaskets' ISO 9001 (quality), ISO 14001 (environment), and ISO 45001 (occupational health and safety) management systems, conducting annual audits.
• EcoVadisminorImplementation/ SI/ Consulting Partner · 1 January 2025EcoVadis assessed TT Gaskets' sustainability performance, awarding Gold level certification in 2025, placing the company in the top 3% globally.
• JakamominorStrategic or Co-development Partner · 1 January 2025Jakamo awarded TT Gaskets the Supplier Experience Award in recognition of responsible supply chain practices and sustainable B2B collaboration.
• SIX Elastomeric Systems clusterminorStrategic or Co-development Partner · 1 January 2025TT Gaskets is a founding member of the SIX Elastomeric Systems cluster, which focuses on the sustainable innovation of advanced elastomeric and sealing materials through cross-company collaboration.
• Keskuskauppakamarin Ilmastoyhteisö (Finnish Chamber of Commerce Climate Community)minorStrategic or Co-development Partner · 1 January 2025TT Gaskets is a member of the Finnish Chamber of Commerce's Climate Community, a national initiative supporting corporate climate action and sustainability leadership.
• Tampere Business CampusminorStrategic or Co-development Partner · 1 January 2025Active membership in the Tampere Business Campus network, which facilitates peer learning and co-development among companies in the Pirkanmaa region.
• Family Business Network (FBN)minorStrategic or Co-development Partner · 1 January 2025Active membership in the Family Business Network (FBN), engaging with domestic and international family business peers for knowledge exchange and best practice sharing.
• TAKK (Tampereen aikuiskoulutuskeskus)coreStrategic or Co-development PartnerPartnership with Tampere Adult Education Centre (TAKK) to deliver EN 1591-4 compliant flange gasket assembly qualification training and certification. TT Gaskets provides technical content and industry expertise while TAKK provides the accredited training framework and examination infrastructure. The programme combines remote theoretical learning with practical assessment and certification exam.
• WärtsiläcoreStrategic or Co-development PartnerCollaboration with Wärtsilä on the 'Green Delivery' initiative, exploring greener industrial logistics and delivery practices. Featured in a joint webinar where both companies shared how their collaboration is paving the way for smarter, greener solutions for partners worldwide.

Scale indicators8 records

Recent moves2 records

Expansion highlights6 records

Direct peers

• James Walker: UK-based manufacturer of high-performance industrial sealing products, gaskets, and expansion joints serving oil & gas, power, marine, and chemical customers. Directly comparable to TT Gaskets in material-agnostic gasket engineering and service-led model (including on-site support and training).
• Klinger: Austrian-headquartered global manufacturer of industrial gaskets and sealing products serving process industries (oil & gas, petrochemical, power, pulp & paper). Closely comparable to TT Gaskets in product portfolio (spiral wound, Kammprofile, sheet gaskets) and B2B enterprise sales motion to industrial OEMs and process plants.
• Donit Tesnit: Slovenian manufacturer of gasket sheet materials (TESNIT range) and cut gaskets serving industrial customers across Europe. Comparable to TT Gaskets in gasket material expertise and European industrial OEM customer base; smaller scale and more upstream (material-focused) than TT Gaskets' finished gasket operations.
• Lamons: US-based global manufacturer of gaskets and sealing products, including spiral wound, Kammprofile, and RTJ gaskets for oil & gas and process industries. Directly comparable product offering and customer profile to TT Gaskets' spiral wound and metallic gasket ranges.
• Flexitallic: Global leader in spiral wound gasket technology and manufacturer of semi-metallic, soft-cut, and RTJ gaskets for oil & gas, chemical, and power generation. Directly comparable product portfolio to TT Gaskets' spiral wound and camprofile ranges, with strong overlap in petrochemical and refinery customers.
• Frenzelit: German manufacturer of technical gaskets, sealing materials, high-temperature insulation, and expansion joints, with a similar focus on industrial process industries. Comparable to TT Gaskets in high-temperature material expertise (including mica-based products) and German/Central European customer base.
• Teadit: Brazil/Austria-headquartered global manufacturer of industrial sealing products, including spiral wound, Kammprofile, and soft-cut gaskets, plus packing and compression packing. Comparable to TT Gaskets in multi-vertical industrial OEM customer base and global distribution, with similar emphasis on application engineering.

Broad incumbents

• Garlock (EnPro Industries): US-headquartered division of EnPro Industries and one of the largest global manufacturers of fluid sealing products, including gaskets, compression packing, and expansion joints. A broader incumbent with multi-site global manufacturing footprint and a wider portfolio than TT Gaskets, but directly overlapping in industrial flange and spiral wound gaskets.

Others

• Wärtsilä: Finnish global leader in marine engines and energy solutions and documented TT Gaskets collaboration partner on 'Green Delivery'. Not a direct gasket competitor, but a relevant ecosystem participant — TT Gaskets supplies sealing solutions into Wärtsilä-adjacent marine and engine applications, and the joint webinar indicates a strategic delivery-side partnership.

Emerging players

• Spetech: Polish manufacturer of industrial gaskets and sealing products serving Central European process industries. Smaller and more regionally focused than TT Gaskets, but comparable in product type (semi-metallic and soft-cut gaskets) and target customer segments (refineries, chemical plants, power).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCBC0ZJ0OQ-Q6YicO_pQB10A
• LinkedInlinkedin.com/company/25046941
• Instagraminstagram.com/ttgaskets
• Facebookfacebook.com/profile.php

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 TT Gaskets