Atlantic Gasket

What Atlantic Gasket does

Atlantic Gasket Corporation is a privately held custom gasket and sealing solutions manufacturer founded in 1947 and headquartered at 3908 Frankford Avenue in Philadelphia, Pennsylvania. The company fabricates precision die-cut parts, custom gaskets, rubber washers, molded rubber components, foam and sponge tapes, cabinet bumpers, cork rubber products, and electrically-conductive EMI/RFI shielding gaskets across elastomer families including silicone, EPDM, neoprene, Viton, nitrile, fluorosilicone, and butyl rubber. Manufacturing capabilities span rotary and flatbed die-cutting, high-pressure digital waterjet cutting, slitting (Phoenix Model 625C), laminating, and rubber molding, with proprietary crushed cellular foam products (Ensolite EFO and SFO) developed in-house. A 3M Associate Converter relationship extends the catalog to approximately 53,000 3M adhesive and tape products.

The company sells to industrial, EV and alternative energy, military/aerospace/defense, automotive, and medical/pharmaceutical customers, with materials qualified to MIL-G-83528, MIL-DTL-25988C, MIL-T-6841, AMS, and ASTM specifications. Go-to-market is entirely direct: phone, email, and website quote forms route buyers to a sales team that provides material consultation and custom part quotes. Revenue is earned through three streams: quote-based custom fabrication (the largest), transactional sale of stock catalog items (silicone sponge stripping, cork rubber tape), and conversion/laminating services performed on customer-supplied materials.

Atlantic Gasket differentiates on quick-turn responsiveness (24-hour prototype delivery, same-day emergency shipments), tool-less waterjet cutting that avoids tooling investment, broad specification compliance for defense and aerospace qualification, and 75+ years of accumulated material selection expertise. The company employs between 11 and 50 people, has not raised institutional funding, and is independently owned with no disclosed parent or holding entity.

Name

Atlantic Gasket

Legal name

Atlantic Gasket Corporation

Website

https://atlanticgasket.com

Company type

Private

Founded year

1947

Operating status

Operating

Headcount range

11–50 employees

Short description

Atlantic Gasket Corporation is a Philadelphia-based, privately held manufacturer founded in 1947 that produces custom die-cut gaskets, molded rubber parts, EMI/RFI shielding seals, and converted 3M adhesive products for industrial, military, automotive, EV, and medical customers globally.

Ownership category

akta.pro rank

Product category

Industrial Gaskets & Sealing Solutions

NAICS

Gasket, Packing, and Sealing Device Manufacturing (339991)

SIC

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

akta.pro primary industry

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

Keywords

• Custom gasket manufacturing
• Die-cut rubber parts
• EMI/RFI shielding gaskets
• Waterjet cutting services
• Industrial sealing solutions

Headquarters

HQ city

Philadelphia

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Custom Fabricated Parts & Gaskets: Atlantic Gasket generates revenue primarily through the manufacture and sale of custom-fabricated precision die-cut parts, custom gaskets, rubber molded parts, and conversion services. Products are custom-cut to customer specifications via waterjet cutting, die cutting, and knife-cutting, typically as project-based or repeat-order contracts. Revenue is earned through one-time project quotations and ongoing purchase orders for production parts. The company maintains stock of common materials for rapid fulfillment.
2. Stock Material & Stripping Products: Sale of standard stock materials, sheets, rolls, and stripping products (e.g., cork rubber tape, silicone sponge stripping) from catalog. Customers purchase predefined sizes and thicknesses at listed unit prices. Revenue is transactional per-order.
3. Conversion & Value-Added Services: Revenue from processing services including slitting materials to width, laminating adhesive to substrates, and die-cutting or waterjet-cutting customer-supplied materials. Services are quoted per job based on material type, dimensions, and complexity.

Pricing tiers

Distribution channels2 records

Marketing channels3 records

Core offering

Atlantic Gasket manufactures custom gaskets, die-cut parts, and rubber components, specializing in precision-engineered sealing solutions. The company produces parts through die cutting (rotary and flatbed), high-pressure digital waterjet cutting, slitting, laminating, and rubber molding, serving industrial, defense, automotive, EV, medical, and other manufacturing sectors globally. As a 3M Associate Converter, the company also converts approximately 53,000 3M adhesive products to custom specifications.

Product overview

Atlantic Gasket is a custom gasket and sealing solutions manufacturer founded in 1947, serving most major industry groups globally. The company's product portfolio centers on custom die-cut and waterjet-cut gaskets, rubber washers, and molded rubber parts across various elastomer families including rubber, silicone, EPDM, neoprene, Viton, nitrile, and fluorosilicone. The product line extends to cabinet bumpers, foam and sponge tapes, cork rubber products, and EMI/RFI shielding gaskets with electrically-conductive fillers. As a 3M Associate Converter, Atlantic Gasket also offers conversion of approximately 53,000 3M adhesive products. Manufacturing capabilities include die cutting, waterjet cutting, slitting, and laminating services enabling rapid prototyping and production of custom parts. The company operates on a build-to-order basis with no standardized software platform.

Differentiator

Problem solved

Functional benefit

Products and services

• Custom Gaskets Precision-manufactured custom gaskets in various materials including rubber, silicone, EPDM, neoprene, Viton, nitrile, and non-metallic compositions for sealing applications across diverse industries such as industrial, defense, EV, automotive, and medical.
• Rubber Washers Die-cut or waterjet-cut rubber washers in various elastomers including Viton, neoprene, EPDM, silicone, and nitrile for sealing, spacing, and cushioning applications.
• Cabinet Bumpers / Panel Spacers Solid urethane bumpers and urethane foam bumpers for cabinet doors, panel spacers, and door spacers providing noise reduction and impact absorption.
• Adhesive-Backed Silicone Sponge Stripping AGSIMEDIUM medium density closed cell silicone sponge tape with adhesive backing, rated for -103°F to 500°F intermittent temperatures, meeting ASTM D6576 Type 2, AMS3195, FDA, UL94 V-0, UL94 HB, and MIL-R-6130 Type 2 specifications.
• EMI / RFI Shielding Gaskets Electrically-conductive silicone and fluorosilicone gaskets filled with metallic fillers (nickel-coated graphite, silver-coated glass, silver-coated copper, silver-coated aluminum) providing shielding against electromagnetic interference (EMI) and radio frequency interference (RFI) for sensitive electronic equipment.
• Fluorosilicone Rubber Products MIL-DTL-25988C compliant fluorosilicone rubber (FVMQ) available in various grades (40-80 durometer) for sheets, molded parts, strips, and extrusions with resistance to fuels, oils, and extreme temperatures (-70°F to 392°F).
• Molded Rubber Parts Custom molded rubber parts manufactured through compression and transfer molding processes for complex geometries in various elastomers.
• Cork and Cork Rubber Products Composition cork and cork rubber materials combining natural cork compressibility with rubber flexibility, available in various blends (cork/nitrile, cork/neoprene, cork/silicone) for automotive, electrical, construction, and industrial sealing applications.
• 3M Adhesive Products (Converted) As a 3M Associate Converter, Atlantic Gasket converts approximately 53,000 3M adhesive products including transfer tapes, adhesive-backed materials, reclosable fasteners, and custom die-cut or waterjet-cut adhesive parts for industrial customers.
• Waterjet Cutting Services High-pressure digital waterjet cutting (hydrocutting) services producing tolerance parts in virtually any material without tooling requirements, enabling rapid prototyping, quick turnarounds, and low-quantity custom gasket production.
• Die Cutting Services Rotary and flatbed die-cutting services for producing high-quality custom-cut parts from rubber, sponge, foam, and other non-metallic materials with automated material feed systems.
• Slitting and Laminating Services Precision slitting services from 1/4-inch to 60-inch widths and laminating services applying pressure-sensitive adhesives to materials, utilizing equipment including the Phoenix Model 625C duplex slitter/rewinder.

Quantifiable outcome

• Prototype parts delivered within 24 hours using customer-supplied CAD files with no expensive tooling required
• +2 more outcomes

Named customers4 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• 3McoreTechnology or Integration · 29 October 2019Atlantic Gasket is a 3M Associate Converter, providing access to approximately 53,000 products from 3M's line including adhesives, tapes, fasteners, and other conversion materials. Atlantic Gasket converts 3M products slit to width or applied to materials and die-cut, kiss-cut, or water jet cut. Products available include closed cell sponges, open cell sponges, foams, mechanical rubbers (Neoprene, EPDM, Silicone, Nitrile/Buna-N, Viton), corks, cork rubbers, felts, and plastics with 3M adhesives applied.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Stockwell Elastomerics: US-based custom manufacturer of gaskets, sealing, and EMI/RFI shielding products in similar size range. Highly comparable because Stockwell also specializes in silicone, conductive elastomers, and MIL-spec materials serving defense and industrial customers — directly mirroring Atlantic Gasket's specialty positioning.
• Custom Rubber Corp. US-based custom rubber molder and gasket manufacturer producing die-cut, lathe-cut, and molded rubber parts. Comparable as a similarly-sized custom rubber/gasket fabricator serving industrial customers with similar elastomer material offerings.
• Elasto Proxy: Canadian custom rubber products manufacturer specializing in gaskets, seals, and molded rubber parts for low-to-mid volume industrial customers. Directly comparable in business model — small-to-mid-sized custom fabricator serving similar markets with similar materials (silicone, EPDM, neoprene, etc.).
• Lauren Manufacturing: US-based custom rubber and polymer extrusions/sealing solutions manufacturer serving similar industrial and OEM customers. Comparable because it produces custom rubber gaskets, sealing profiles, and elastomer components in comparable materials and end markets at similar mid-market scale.
• Polymer Technologies: US manufacturer of custom engineered polymer and rubber products including acoustic, thermal, and EMI/RFI shielding solutions. Comparable because of its overlap in EMI/RFI shielding gaskets and elastomeric sealing components serving defense and industrial customers.

Broad incumbents

• Klinger Group: International manufacturer of gaskets, sealing products, and fluid control technology. Comparable as a broad-based gasket/sealing incumbent serving process industries and power generation, though much larger and more diversified than Atlantic Gasket.
• Garlock Sealing Technologies: One of the largest industrial gasket and sealing product manufacturers globally, part of EnPro Industries. Comparable because it offers gaskets, compression packing, and EMI/RFI products across the same end markets (chemical, power, oil & gas, defense), though it operates at far greater scale and with broader geographic reach.
• Teadit: Global manufacturer of gaskets, packing, and sealing products serving process industries. Comparable as an incumbent gasket/sealing supplier, though significantly larger with global operations and broader product portfolio.
• Flexitallic: Global manufacturer of industrial gaskets and sealing products, particularly strong in oil & gas, petrochemical, and power generation. Comparable because it sells gaskets and sealing solutions to overlapping industrial customer bases, though at significantly larger scale and broader portfolio.
• James Walker Group: UK-based global manufacturer of gaskets, compression packing, and elastomer products serving oil & gas, power, and industrial customers. Comparable as a broad-based gasket/sealing incumbent with overlap in materials and end markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Atlantic_Gasket
• Facebookfacebook.com/AtlanticGasket
• LinkedInlinkedin.com/company/atlanticgasket

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Atlantic Gasket