Natural Light Flaw-Detection Kits
Use colored dye to reveal cracks and surface flaws in most nonporous material. Flaws become visible under natural light and appear as a bright red color. Commonly used for weld inspecting.

For Use On | Includes | Specifications Met | Each | |
Carbide, Cast Iron, Ceramic, Stainless Steel, Steel | Four 16-oz. Aerosol Cans of Cleaner, Two 16-oz. Aerosol Cans of Developer, Two 16-oz. Aerosol Cans of Red Dye | ASTM E1417, MIL-STD-2132, MIL-STD-271, SAE AMS2644 | 000000 | 0000000 |
UV Light Flaw-Detection Kits
More sensitive than natural light kits, these kits use UV light with colored dye to detect cracks, seams, and pores on machined surfaces.

Light | ||||||||||
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For Use On | Includes | Bulb Type | Wattage | Voltage | Electrical Connection Type | Plug Type | Cord Length, ft. | Specifications Met | Each | |
Carbide, Cast Iron, Ceramic, Stainless Steel, Steel | One 16-oz Aerosol Can of Fluorescent Green Dye, One 16-oz. Can of Developer, Two 16-oz. Aerosol Cans of Cleaner, UV Light | Ultraviolet | 5W | 120V AC | Plug In | Three Prong | 9 | ASTM E1417, MIL-STD-2132, MIL-STD-271, SAE AMS2644 | 0000000 | 000000000 |
Leak-Detecting Dye Kits for HVAC Systems


With bright-colored dye and a fully equipped kit, you have everything you need to spot leaks in your HVAC system. These kits come with the correct amount of dye required for your system's size. Inject the dye into your system and scan it with the UV light—the dye is fluorescent, so it’s easy to spot most leaks right away. For small leaks, let the dye circulate for 24 hours and then inspect it again. Use the dye cleaner before you fix a leak. If the repair isn’t sufficient, you’ll be able to spot more dye.
Kits with UV dye and sealant are formulated to seal hard-to-find leaks from the inside of your system. The dye and sealant formula is non-polymer and oil soluble, making it safe to stay in your system indefinitely. Reinforce seals from the outside for a permanent fix.
Kits that meet ANSI/ASHRAE adhere to standards for chemical stability.
Kits that meet SAE J2297 include dye that was originally made to detect leaks in automotive AC systems.
Dye Kits | Replacement Cartridges | |||||||
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Color | For Max. HVAC System Size, Btu/hr. | Container Size, oz. | Includes | Specifications Met | Each | Each | ||
Liquid | ||||||||
Fluorescent Blue/Green | 168,000 | 0.5 | Four 0.5 oz. UV Dye and Sealant Containers, Adapter, Carrying Case, Cleaner, Hose Assembly, Injector, UV Light, UV Protective Glasses | ANSI/ASHRAE Standard 86, ANSI/ASHRAE Standard 97 | 0000000 | 0000000 | 0000000 | 000000 |
Fluorescent Yellow | 760,000 | 8 | One 8 oz. UV Dye Container, Adapter, Carrying Case, Cleaner, Hose Assembly, Injector, UV Light, UV Protective Glasses | SAE J2297 | 0000000 | 000000 | 0000000 | 00000 |