Ace Seal & Rubber

What Ace Seal & Rubber does

Ace Seal & Rubber is a privately held, woman-owned manufacturer of elastomer sealing solutions founded in 1982 and headquartered at 23 Las Colinas Lane in San Jose, California. The company produces standard and custom O-rings, gaskets, seals, barrel bungs, rubber sheet materials, and custom molded rubber and plastic components. Manufacturing is performed in ISO/TS 16949:2016, QS-9000, and ISO-9001:2008 certified facilities using compression molding, injection molding, and multi-cavity injection molding processes, with supporting fabrication services in laser cutting and die cutting of gaskets. The catalog spans materials including Viton/FKM, Buna-N, EPDM, silicone, FFKM, PTFE, Chemraz, Kalrez, neoprene, fluorosilicone, polyurethane, and MIL-SPEC compounds, with FDA-approved food-grade silicone for the barrel bung and sanitary gasket lines.

Name

Ace Seal & Rubber

Legal name

Ace Seal & Rubber

Website

https://aceseal.com

Company type

Private

Founded year

1982

Operating status

Operating

Headcount range

101–250 employees

Short description

Ace Seal & Rubber, founded in 1982 and based in San Jose, California, manufactures and distributes standard and custom O-rings, gaskets, seals, molded rubber and plastic components, and FDA-grade silicone barrel bungs for aerospace, medical, military, oil & gas, semiconductor, food & beverage, and water treatment customers.

Ownership category

akta.pro rank

Product category

Industrial Sealing Products

NAICS

Gasket, Packing, and Sealing Device Manufacturing (339991), All Other Rubber Product Manufacturing (326299), Rubber Product Manufacturing (3262)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Fabricated Rubber Products, Nec (3060)

akta.pro primary industry

Seals, Gaskets & O-Rings (Industrial Elastomer) (IMANALAC)

akta.pro secondary industries

Aerospace Seals, Gaskets, O-Rings & Elastomeric Components (IMABANAF), Adhesives & Sealants Chemicals (IMAEABAA), Food-Grade, Medical & Cleanroom Rubber Compounds (IMANAJAH)

Keywords

• Custom O-rings
• Industrial gaskets
• Custom molded rubber
• Rubber extrusions
• Elastomer seals

Headquarters

HQ city

San Jose

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Standard O-Ring and Seal Products: Sale of standard/stock molded rubber products including O-rings in AS568 sizes, quad-rings, backup rings, and gaskets. Same-day shipping on standard items with wholesale and volume discounts.
2. Custom Molding Services: Custom injection molding, compression molding, and multi-cavity molding services for rubber and plastic components. Accommodates low to high volume requests with cost-effective pricing.
3. Barrel Bungs and Accessories: Silicone barrel bungs for wine, whiskey, bourbon, scotch, beer, cider, and seltzer applications. FDA-approved food-grade products sold in standard and custom configurations.
4. Rubber Sheet Material and Extrusions: Rubber sheet materials and custom rubber extrusions in various profiles (U-Channel, L-Strip, T-Shape, D-Shape, etc.) and materials including FDA-approved compounds, military specified materials, and UL listed compounds.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Ace Seal & Rubber manufactures and supplies standard and custom O-rings, rubber seals, gaskets, silicone barrel bungs, rubber sheet material, filters, and custom molded rubber and plastic components. The company operates ISO/TS-certified compression, injection, and multi-cavity molding facilities to produce both catalog stock items (with same-day shipping) and engineered-to-order sealing solutions. Its products serve aerospace, medical, biotechnology, oil and gas, semiconductor, military, food and beverage, water treatment, solar, and marine industries worldwide.

Product overview

Ace Seal & Rubber is a manufacturer of custom and standard rubber O-rings, seals, gaskets, and barrel bungs, established in 1982 and based in Silicon Valley. The product portfolio centers on O-Ring Products (including AS568, Parker, Boss series, Metric, Quad/X-Rings, EMI Shielded, Cord, and Kits) and Gaskets (including Flange, Die-Cut, Laser-Cut, and Tri-Clamp Sanitary styles), alongside Custom Products (Custom O-Rings, Molded Rubber Components, Molded Plastic Components, and Rubber Extrusions). Manufacturing Services include Compression Molding, Injection Molding, and Multi-Cavity Molding. The company also offers Barrel Bungs (silicone stoppers for wine, beer, whiskey, bourbon, and scotch barrels) and supporting products including Rubber Sheet Materials and Filters. The offering functions as a catalog-based e-commerce platform with customization capabilities, not a software product.

Differentiator

Problem solved

Functional benefit

Products and services

• O-Ring Products Catalog of standard O-ring products including AS568 O-Rings, Boss 900 Series, Parker 800 Series Back Up O-Rings, Parker 500 Series, Quad Rings & X-Rings, Metric O-Rings, Spliced & Vulcanized O-Rings, EMI Shielded O-Rings & Seals, O-Ring Cord, O-Ring Kits, and Accessories, available as stock items in a wide range of elastomer materials.
• Custom O-Rings Custom O-rings manufactured to exact specifications for size, durometer, color, and material when standard sizes do not fit the application, supporting both prototype and production volumes.
• Gaskets Custom fabricated gaskets including Flange Gaskets in multiple material options, Rubber Gaskets, Viton Gaskets, Die-Cut Gaskets, Laser Cut Gaskets, and Tri-Clamp Sanitary Gaskets for industrial, sanitary, and process applications.
• Rubber Sheet Material Wide selection of rubber sheet materials including Fabreeka, Red Rubber, Buna-N Nitrile, EPDM, Neoprene, Viton, Gum Rubber, Butyl, Cork Rubber, Silicone, Hypalon, Industrial Felt, Chipboard Rubber, Flexible Graphite, Silicone Sponge, and Filled PTFE sheets, supplied for fabrication and gasket production.
• Barrel Bungs Silicone barrel bungs and stoppers for alcoholic beverage production, including Beer/Seltzer/Cider Bungs, Wine Barrel Bungs, Whiskey Barrel Bungs, Bourbon Barrel Bungs, and Scotch Barrel Bungs, available in solid, hollow, and thru-hole styles with FDA-approved food-grade silicone.
• Custom Molded Rubber Components Custom molded rubber components including seals, O-rings, gaskets, plugs, and other sealing parts manufactured to customer specifications for various industry applications.
• Custom Plastic Components Custom plastic injection molded components for high volume production runs, including processes like overmolding, hot runner, and blow molding.
• Custom Rubber Extrusions Custom extruded rubber profiles in continuous lengths or cut-to-length, including U-Channel, L-Strip, T-Shape, D-Shape, C-Shape, P-Strip, H-Channel, and E-Channel profiles in various materials.
• Molding Services Custom rubber and plastic molding services including Compression Molding, Injection Molding, and Multi-Cavity Molding for producing molded parts and components in ISO/TS 16949, QS-9000, and ISO-9001:2008 certified facilities.
• Laser Cut Gaskets Precision laser cutting services for custom gaskets from rubber and silicone materials using CAD programming for highly repeatable designs.
• Die-Cut Gaskets Cost-effective die-cutting services for gaskets using automatic or semi-automatic presses for tight tolerances and exacting standards.
• Filters Industrial filters including Silicone Sponge Filters, Polyurethane Foam Filters, and Blended Sponge Filters for use alongside the company's sealing components.

Quantifiable outcome

• Same-day shipping on standard items
• +1 more outcomes

Named customers7 records

Segments8 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

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Parker Hannifin: Global motion and control technologies leader with a large O-ring and sealing solutions division. Overlaps directly with Ace Seal's Parker 500/800 series, AS568, metric, and custom elastomer offerings, but at vastly greater scale and with proprietary material brands.
• Trelleborg Sealing Solutions: Division of Trelleborg AB focused on polymer-engineered sealing solutions for aerospace, medical, oil & gas, and general industrial — directly comparable verticals and product types (O-rings, custom molded seals, specialty elastomers) to Ace Seal.
• ERIKS (a Wyndham brand): Industrial distribution and sealing specialist with broad O-ring, gasket, and fluid-sealing offerings to industrial and process-industry customers. A comparable multi-vertical competitor with a hybrid catalog + custom model.

Direct peers

• Greene Tweed: Specialty manufacturer of high-performance elastomeric seals and custom molded components for aerospace, semiconductor, oil & gas, and medical. Closely comparable customer mix, materials portfolio, and custom-molding business model to Ace Seal.
• Apple Rubber Products: US-based specialty O-ring and seal manufacturer with catalog e-commerce plus custom molding, serving aerospace, medical, and industrial — a very close direct peer in size, product mix, and digital GTM.
• Marco Rubber & Plastics: E-commerce-focused distributor and custom manufacturer of O-rings, seals, and custom molded rubber parts across similar materials and end-markets. Competes with Ace Seal in both catalog online sales and custom molding services.
• Stockwell Elastomerics: Manufacturer of custom die-cut, molded, and extruded rubber and silicone components, including gaskets, EMI/RFI shielding, and silicone parts — overlapping in custom elastomer solutions and engineered materials for electronics and industrial customers.
• Precision Polymer Engineering (PPE): Specialty elastomer seal manufacturer focused on high-performance FFKM, FKM, and other fluoroelastomer O-rings and custom seals for semiconductor, oil & gas, and pharmaceutical — a direct peer in the high-end material tier of Ace Seal's portfolio.
• Daemar Inc. Canadian-based manufacturer and distributor of O-rings, gaskets, and sealing products including oil seals and custom molded components, serving similar industrial OEM customers with a comparable catalog + custom structure.

Emerging players

• Global O-Ring and Seal: Online-focused US distributor and manufacturer of standard and custom O-rings and seals, competing head-to-head with Ace Seal's e-commerce business for SMB and engineering-buyer demand.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance8 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 Ace Seal & Rubber