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The VAPCO PRODUCTS LS-10T is a direct-inject refrigerant leak sealant formulated for HVAC systems rated from 2 to 10 tons. It seals small leaks in refrigerant circuits without the addition of UV dye, making it a clean option for systems where dye-free service is required or preferred. Licensed HVAC technicians use this product to address minor refrigerant leaks in the field without requiring a full system teardown or component replacement. The no-UV-dye formula keeps the refrigerant circuit free of tracer compounds that could complicate future diagnostic work or conflict with equipment manufacturer requirements.
This sealant is suited for residential and light commercial split systems, package units, and similar vapor-compression equipment within the 2-to-10-ton capacity range. It is intended for use by certified refrigerant technicians as part of a service call where a small leak has been identified and a non-invasive sealing solution is appropriate. It is not intended as a substitute for proper component repair in cases of significant mechanical damage or large leak events.
Designed for use in vapor-compression refrigerant systems rated between 2 and 10 tons. Confirm refrigerant type and system manufacturer guidelines before application, as sealant compatibility can vary by refrigerant and system design.
This product must be applied by an EPA Section 608 certified HVAC technician. Follow the manufacturer instructions for the direct-inject procedure specific to the system refrigerant type and operating pressure. Do not apply to systems with large or structurally compromised leaks. Verify system operating pressures are within normal range before and after application.
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