blueseal R-134a A/C Stop Leak 2 oz with UV Dye & Reusable Hose — Zero-Polymer, Safe for Evaporators

Blueseal R-134a A/C Stop Leak is a 2 oz, zero-polymer refrigerant leak sealer with professional UV dye and a reusable hose for fast, tool-free repairs on R-134a automotive systems.

When your vehicle’s air conditioning starts losing cooling power, a slow refrigerant leak is often the culprit. Blueseal was formulated to seal small-to-moderate R-134a leaks without introducing polymers or particulates that can clog compressors or recovery equipment. Laboratory testing shows a greater than 95% seal rate in systems leaking up to 25 oz of refrigerant per year, and the product includes a built-in UV tracer and a reusable install hose to simplify diagnosis and application for both DIYers and technicians.

How does Blueseal stop refrigerant leaks without harming my AC system?

The formula is zero-polymer and free of solid particulates, so it won’t create residue that can block valves, compressors, or recovery machines. It reacts when exposed to oxygen under system pressure to form permanent seals at leak points while leaving the rest of the system clean.

• Zero-polymer chemistry to avoid solid buildup
• Permanently bonds on contact with oxygen under pressure
• Safe for evaporator cores, condensers, hoses, gaskets, and O-rings

Will Blueseal actually find and fix leaks or just mask the problem?

Blueseal includes professional-grade UV dye so you can visually locate leaks with a UV lamp; this helps identify larger failures that may need mechanical repair. For small-to-moderate leaks (lab-tested up to 25 oz lost per year), the sealer forms permanent bonds and also conditions aging rubber seals to reduce future seepage.

• Built-in UV dye for rapid leak detection
• Seals small-to-moderate leaks permanently when exposed to oxygen
• Conditions and restores dried rubber seals

How do I apply the product and what tools are required?

The package contains a 2 oz bottle with a self-sealing rubber valve and a reusable R-134a install hose for tool-free attachment to service ports. Application is designed for quick DIY or professional use; refrigerant recharge is sold separately and may be required after sealing.

• 2 oz sealed container with self-sealing rubber valve
• Reusable R-134a hose for tool-free connection
• No special equipment needed to inject sealer; UV lamp recommended for dye inspection

How effective is Blueseal and what warranties or testing support its claims?

Controlled laboratory testing shows a 95%+ success rate in systems losing 25 oz of refrigerant or less annually. The chemistry remains active after initial sealing, forming new bonds should fresh air enter a site, which helps prevent repeat leaks.

• 95%+ seal rate in controlled tests for qualifying leak rates
• Formula remains active to address future minor leak ingress
• Made in USA; OSHA-classified non-hazardous formulation

Who is this for? Blueseal is aimed at vehicle owners, independent mechanics, and fleet managers who need a fast, non-invasive solution for small-to-moderate R-134a refrigerant leaks and who prefer a product that won’t foul recovery equipment or clog system components. It suits do-it-yourselfers who want an easy, tool-free install with a reusable hose and technicians who value a built-in UV dye for quicker diagnostics. Note: refrigerant top-up may be needed after treatment; large leaks or mechanical failures still require professional repair.