Dunbar Products

What Dunbar Products does

Dunbar Products, LLC (CAGE Code 1QL94) is a privately held Texas-based manufacturer and distributor of heat shrinkable tubing founded in 1986 and headquartered at 1302 Champion Circle, Carrollton, TX 75006, with operations centralized at a Dallas-area distribution facility. The company employs between 11 and 50 people and positions itself as a Tier 1 supplier of Mil-Spec QPL-qualified heat shrinkable tubing certified to AS23053 (formerly AMS-DTL-23053 and MIL-DTL-23053) specifications, alongside commercial-grade tubing. Its product portfolio spans single-wall polyolefin, dual-wall adhesive-lined polyolefin, medium and heavy wall tubing rated up to 35kV, specialty products (Kynar, PVdF, Viton, Fluoroelastomer, Diesel Resistant), and Teflon/Fluoroplastic variants (FEP, PTFE, ETFE), as well as the proprietary Dunbar APS III and APS XDQ thermal transfer printing systems for permanent tubing identification. Dunbar holds ISO 9001:2015, AS9100 Rev. D, UL (E319303, E319314), REACH, RoHS3, TSCA, California Proposition 65, PFAS Non-Use, POPs Non-Use, and USMCA compliance certifications.

The company's go-to-market is sales-led and direct: customers reach Dunbar by phone (469.568.0800), email ([email protected]), or a website contact form, with order acknowledgment targeted within one hour and in-stock products shipped rapidly from the Dallas distribution center. It serves two vertical segments — military/aerospace as the primary segment (Tier 1 supplier to defense and aerospace customers requiring QPL-approved spec-compliant tubing for wire harness assembly, electrical insulation, and component protection) and a secondary commercial/industrial segment covering electrical contractors, electronics manufacturers, automotive suppliers, and CATV operators. A cross-reference guide positions Dunbar as a competitive equivalent source for TE/Raychem and 3M part numbers.

Revenue is generated primarily through one-time sales of tubing catalog items and identification products, with no public pricing disclosed — quotes are handled per request based on product type, quantity, and specification. The company is an LLC with no parent entity, no disclosed funding rounds, no acquisitions, no subsidiaries, and no public investor materials; it operates independently from a single Carrollton, Texas facility and ships internationally with regulatory compliance. By 2026, the company reached its 40th year of operations, with copyright and anniversary branding on its website indicating active ongoing operations.

Name

Dunbar Products

Legal name

Dunbar Products, LLC

Website

https://hstubing.com

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

11–50 employees

Short description

Dunbar Products, LLC is a Texas-based Tier 1 supplier of QPL-qualified Mil-Spec and commercial heat shrinkable tubing, serving military, aerospace, and industrial customers from a centralized Dallas distribution center since 1986.

Ownership category

akta.pro rank

Product category

Heat Shrinkable Tubing

NAICS

Rubber and Plastics Hoses and Belting Manufacturing (326220)

SIC

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

akta.pro primary industry

Industrial Hoses & Tubing (Rubber/Elastomer) (IMANALAA)

Keywords

• Heat shrink tubing
• Mil-spec tubing
• Wire harness insulation
• Identification markers
• Thermal transfer printing

Headquarters

HQ city

Carrollton

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Heat Shrink Tubing Sales: Dunbar Products generates revenue through the sale of heat shrinkable tubing products including Mil-Spec QPL-approved tubing, commercial tubing, identification products, and thermal transfer printing systems. Products are sold as standard catalog items with in-stock products shipping quickly from Dallas distribution center.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Dunbar Products manufactures and supplies heat shrinkable tubing products including QPL-approved Mil-Spec (AS23053) single-wall and dual-wall polyolefin, medium/heavy wall, specialty (Kynar, PVdF, Viton, fluoroelastomer, diesel-resistant), and Teflon/Fluoroplastic tubing, along with non-shrinkable polyolefin tubing for commercial applications. The company also provides identification products (continuous printed markers and formatted markers) and proprietary APS thermal transfer printing systems for permanent tubing marking. Customers are Tier 1 military/aerospace suppliers and commercial/industrial buyers served from a centralized Dallas, Texas distribution center.

Product overview

Dunbar Products offers a comprehensive portfolio of heat shrinkable tubing products and thermal transfer printing systems. The core offering includes Single Wall Polyolefin Tubing (DUNBAR-1635F, DUNBAR-3635, DUNBAR-4635), Dual Wall Polyolefin Adhesive-Lined Tubing (DUNBAR-1625W, DUNBAR-3625WS, DUNBAR-3635W), Medium & Heavy Wall Tubing (DUNBAR-CATV, DUNBAR-CMWT-FR, DUNBAR-CHWT-FR, DUNBAR-PMWT-FR, DUNBAR-PHWT-FR), Specialty Tubing (DUNBAR-FK150, DUNBAR-1675, DUNBAR-CRFR, DUNBAR-DR150, DUNBAR-V200, high-voltage BB series), and Teflon/Fluoroplastic Tubing (DUNBAR-FEP, DUNBAR-PTFE, DUNBAR-ETFE). Supporting these products are the Dunbar APS™ III and Dunbar APS™ XDQ thermal transfer printing systems for permanent tubing identification. Products are available with QPL/MIL-Spec certifications (AS23053 series) and commercial ratings, supporting both military/aerospace and commercial applications.

Differentiator

Problem solved

Functional benefit

Brands

• Dunbar APS: Dunbar APS thermal transfer printing systems — includes APS III (single-sided thermal transfer printing) and APS XDQ (double-sided thermal transfer printing) for heat shrinkable tubing identification.

Products and services

• Single Wall Polyolefin Tubing Heat shrinkable single wall polyolefin tubing product line (DUNBAR-1635F, DUNBAR-1635S, DUNBAR-3635, DUNBAR-4635) with 2:1 to 4:1 shrink ratios for general electrical insulation and harness protection in military/aerospace and commercial applications.
• Dual Wall Polyolefin Tubing (Adhesive Lined) Adhesive-lined dual wall heat shrink tubing (DUNBAR-1625W, DUNBAR-3625WS, DUNBAR-3635W, DUNBAR-4635WS, DUNBAR-4650WS) for sealed insulation, environmental sealing, and moisture-resistant wire harness protection.
• Medium & Heavy Wall Tubing High-voltage rated medium and heavy wall heat shrink tubing (DUNBAR-CATV, DUNBAR-CMWT-FR, DUNBAR-CHWT-FR, DUNBAR-PMWT-FR, DUNBAR-PHWT-FR) for 1000V-class electrical insulation and CATV applications.
• Specialty Tubing Specialized heat shrink tubing including DUNBAR-FK150 (Kynar/PVdF), DUNBAR-1675 (high temperature), DUNBAR-CRFR (Fluoroelastomer), DUNBAR-DR150 (Diesel Resistant), DUNBAR-V200 (Viton), and high-voltage BB series variants rated up to 35kV for harsh-environment and high-temperature applications.
• Teflon/Fluoroplastic Tubing Fluoroplastic heat shrink tubing including DUNBAR-FEP (FEP), DUNBAR-PTFE (PTFE), DUNBAR-ETFE (ETFE), and DUNBAR-PTFE/FEP variants with operating temperatures up to 260°C and voltage ratings up to 20kV for extreme temperature and chemical resistance applications.
• DUNBAR-EIT-600 Non-Shrinkable Tubing Non-shrinkable polyolefin tubing for applications not requiring heat activation, UL/CSA rated, available as a cross-referenced alternative for commercial electrical insulation needs.
• Dunbar APS III Thermal Transfer Printing System Single-sided thermal transfer printing system specifically designed for permanent marking on heat shrinkable tubing types and formats. Prints on polyolefin, PVdF, and Kynar heat shrink plus ID Tags and labels.
• Dunbar APS XDQ Double-Sided Thermal Transfer Printing System Double-sided thermal transfer printing system for permanent marking on polyolefin, PVdF, Kynar heat shrink tubing, ID Tags and labels, enabling identification on both sides of marked products.
• Identification Products Continuous printed (in-line) markers produced from bulk tubing and formatted markers for wire and cable identification in military/aerospace and commercial assemblies.

Quantifiable outcome

• Orders acknowledged within 1 hour of receipt
• +2 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• 3M: Diversified industrial conglomerate whose Electrical Markets division sells heat shrink tubing (including Scotch and Temflex brands) competing directly with Dunbar's commercial and Mil-Spec lines. Cross-referenced by Dunbar as a competitor equivalent.
• Panduit: Broad-line provider of network infrastructure and electrical solutions including heat shrink tubing, identification products, and abrasion protection. Overlaps with Dunbar in industrial identification and aerospace/defense channels.
• TE Connectivity: Global connectivity and sensor giant that owns the Raychem heat shrink tubing franchise, the historical incumbent in QPL Mil-Spec polyolefin and specialty tubing. Directly comparable because Dunbar explicitly cross-references TE/Raychem part numbers in its product line.
• Alpha Wire: Manufacturer of wire, cable, and tubing products including heat shrink tubing and identification systems. Comparable as a supplier into similar industrial, military, and electronics channels where Dunbar sells.

Direct peers

• Insultab: Specialty manufacturer of heat shrink tubing, non-shrinkable tubing, and identification products including printed markers. Comparable as a niche-focused tubing specialist with similar product breadth and commercial/industrial customer base.
• Qualtek Electronics: Specialty manufacturer and distributor of heat shrink tubing, cable ties, and power supplies serving industrial, medical, and electronics customers. Comparable as a smaller, focused heat shrink specialist competing in similar commercial channels to Dunbar.
• DSG-Canusa (Shawcor): Specialty heat shrink tubing and shrink-fit pipeline products division of Shawcor, serving automotive, electrical, and industrial markets. Closely comparable as a focused heat shrink manufacturer with overlapping product categories and customer use cases.
• HellermannTyton: Specialist in cable management and identification products including heat shrink tubing, marking systems, and printable identification solutions. Comparable product portfolio and similar aerospace/automotive customer base; direct competitor in wire harness identification.
• Sumitomo Electric: Major Japanese manufacturer of heat shrink tubing including polyolefin, adhesive-lined, and fluoropolymer products with global aerospace, automotive, and electronics distribution. Closely comparable in product breadth, QPL/Mil-Spec positioning, and customer segments.

Emerging players

• Gremtek: Specialty heat shrink tubing manufacturer focused on polyolefin, adhesive-lined, and medium-wall products for European industrial markets. Comparable in product category but smaller and more regionally concentrated than Dunbar.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/dunbar-products-llc

Compliance14 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 Dunbar Products