Vapco Products LSD-7.5T Leak Sealant Direct Seal 2-7.5 Ton

Product Description

The VAPCO PRODUCTS LSD-7.5T is a direct-inject refrigerant system leak sealant formulated for residential and light commercial HVAC equipment rated from 2 to 7.5 tons. The product incorporates UV dye, allowing technicians to locate leak sources under ultraviolet light after treatment. It is designed for use in sealed refrigerant circuits where small leaks at fittings, joints, or coil surfaces are present. Licensed HVAC technicians handling refrigerant systems are the primary installers of this product.

The LSD-7.5T is suited for split systems, packaged units, and heat pumps operating within the 2 to 7.5 ton capacity range. It targets small refrigerant leaks in residential and light commercial applications where a direct-seal chemical treatment is an appropriate service approach. The integrated UV dye eliminates the need for a separate dye injection step, streamlining the diagnostic and sealing workflow on a single service call.

Key Features

• Direct-inject sealant designed for systems rated 2 to 7.5 tons
• Integrated UV dye for post-treatment leak detection without a separate dye charge
• Targets small leaks at fittings, joints, and coil surfaces in sealed refrigerant circuits
• Formulated for residential and light commercial HVAC applications
• Single-product solution combines sealing and UV dye marking

Compatibility

Designed for use in sealed refrigerant systems rated from 2 to 7.5 tons capacity. Consult the product label and manufacturer documentation to confirm compatibility with the specific refrigerant type and system configuration before application.

Installation Notes

Installation and application must be performed by an EPA Section 608 certified HVAC technician. Power down the system and follow all refrigerant handling procedures per applicable regulations before connecting to the refrigerant circuit. Do not inject into systems outside the rated tonnage range, as improper dosing can affect system performance or damage components. Use a UV lamp after system operation to inspect for remaining or new leak points.

Technical Specifications

• System Capacity Range: 2 to 7.5 tons
• UV Dye Included: Yes
• Application Type: Direct seal injection

Standard Information

• Brand: VAPCO PRODUCTS
• Manufacturer Part Number: LSD-7.5T