What Spectronics Corporation makes

Spectronics Corporation invented fluorescent leak detection in 1955 and manufactures the two halves of that method: fluorescent dyes and system additives, and the ultraviolet lamps used to read them. A technician adds a Spectronics dye to a fluid system, lets it circulate, then scans with a UV lamp; escaping fluid glows at every leak site, down to pinhole and intermittent leaks. The company sells under the Spectroline brand for HVAC/R and industrial fluid systems, and under the Tracer Products and Tracerline brands for its automotive division.

On the HVAC/R and industrial side, Spectroline products include fluorescent dyes such as AR-GLO and OIL-GLO, A/C leak sealants (Cool Seal and Glo Seal), UV LED inspection lamps and cordless flashlights, and complete leak-detection kits. The company describes its dyes as OEM-grade, co-solvent free, and NSF certified, and states they are safe to remain inside air-conditioning and refrigeration systems. Industrial applications run to hydraulic equipment, power plants, oil and gas pipelines, and commercial and military aircraft fuel systems. The company says Spectroline dyes and lamps have been used in nuclear reactors and even on the US Space Shuttle.

The automotive division carries the deepest OEM history. Tracerline offers Fluoro-Lite air-conditioning dye, Dye-Lite fluid-system dye, extended-life coolant dyes, EV and hybrid A/C UV dyes, the factory-installed Tracer Wafer dye for OEM assembly lines, and the aftermarket LeakFinder lamp and kit range. Spectronics reports that its automotive dyes have been installed in more than 350 million vehicles worldwide.

Ownership and history

Spectronics is a privately held, family-owned company, run across three generations from a single site in Melville, New York, on Long Island. It was founded in 1955 when it invented UV fluorescent leak detection for the automotive market, and it still holds patents on fluorescent leak-detection dye chemistry. The company marked its 70th anniversary in March 2025. President Jon Cooper, who has led the company since 1978 and also chairs its board, has said Spectronics produces more than 1,000 products for over 100 markets. The company reports that roughly half of its sales are exported, reaching 135 countries, and its product sites are published in seven languages. Independent employee and revenue figures come from third-party databases rather than the company; on those estimates it employs on the order of 85 people and turns over in the tens of millions of dollars annually, consistent with a specialized, globally distributed manufacturer.

Automotive OEM relationships

For buyers evaluating Spectronics as a supplier, the automotive division carries the clearest documented customer evidence. Two relationships appear on the company's own product pages as OEM approvals:

Beyond those named approvals, the company states its dyes are approved by leading automakers worldwide and are factory-installed through the Tracer Wafer program, but it does not publish a broader named-customer list. The 350-million-vehicle figure is a company-stated aggregate, not a per-OEM breakdown.

Certifications and quality

Spectronics operates a quality system it certifies to ISO 9001:2015, with the certificate posted on its site for both the Spectroline and Tracer Products brands. The company describes its dyes as NSF certified and OEM-grade, engineered to be fully miscible, non-particulate, and filtered to 2 microns so they do not change the lubricity or viscosity of the host fluid. These are the properties that let a dye stay inside a sealed A/C or refrigeration system for continuous leak detection rather than a one-time test, which the company positions as a preventive-maintenance approach. OEM-grade dye supply into vehicle programs also tends to carry the PPAP and APQP discipline that automakers expect from approved chemistry. The certificate date is not published on the certification page, so the claim is reported here as current per the company.

Frequently asked questions

What does Spectronics Corporation make?

Spectronics Corporation manufactures fluorescent leak-detection dyes, system additives, and ultraviolet inspection lamps. A dye is added to a fluid system and a UV lamp reveals leaks where the fluid escapes and glows. It sells under the Spectroline brand for HVAC/R and industrial use and under the Tracer Products and Tracerline brands for automotive leak detection.

Who owns Spectronics Corporation?

Spectronics is privately held and family-owned, run by the same family across three generations since it was founded in 1955. It has no parent company. Jon Cooper has been its president since 1978 and also chairs the board.

Who are Spectronics Corporation's customers?

In automotive, the company's dyes carry documented OEM approvals from Ford and General Motors, and the company reports installation in more than 350 million vehicles. It also serves HVAC/R contractors, industrial and aviation fluid-system operators, and specialty markets, with about half of sales exported to 135 countries.

Where is Spectronics Corporation located?

Spectronics is headquartered at 265 Spagnoli Road, Melville, New York 11747, on Long Island. It manufactures at that single site and previously operated in Westbury, New York.

What is Spectronics Corporation's annual revenue?

Spectronics does not publish audited financials. Third-party databases estimate annual revenue in the tens of millions of dollars, on the order of $28 million, and headcount around 85 people. These are modeled figures, not company-reported numbers, and are best read as a band.

What certifications does Spectronics Corporation hold?

Spectronics certifies its quality management system to ISO 9001:2015, with the certificate posted on its site for both the Spectroline and Tracer Products brands. It also describes its dyes as NSF certified and OEM-grade.

Last verified September 28, 2026. Is this your company? Request a correction.