Xantus 31-101 Max Seal + ProDry + UV Dye is a direct inject refrigerant leak sealant for 1.5 to 5 ton residential systems. Connect it to the low-side service port, inject in seconds while the unit runs, and the XL4 Hyper Seal formula circulates with the refrigerant to find and permanently seal the leaks. No pump-down, no evacuation, no measuring. Seal, dry and detect in one inject. The Max Seal formula has been sealing leaks since 2000 with more than 2.3 million units sold. Made in the USA by Xantus Products, Champaign, Illinois.
Specifications
| Manufacturer part number | 31-101 |
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| Product line | Max Seal + ProDry + UV Dye (XL4 Hyper Seal formula) |
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| System size | 1.5 to 5 ton residential |
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| Application | Direct inject through the low-side service port with the Xantus inject gun or a standard manifold hose; clear tube, one-time use |
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| Refrigerant compatibility | All common refrigerants including R-410A, R-22, R-32, R-134a, R-290 and R-600 (not for ammonia systems) |
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| Oil compatibility | All refrigeration oils |
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| Does not clog | Manifold gauges, TXVs, capillary tubes, pistons |
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| UV dye | Built-in Firefly UV dye: the sealant fixes the small leaks and the dye shows you the large ones under a UV lamp |
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| Moisture removal | ProDry converts moisture in the system into synthetic oil and dries out the A/C system |
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| Brand | Xantus Products, made in USA |
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How to install
- Turn the system on and verify it is running.
- Attach the inject to the inject gun or manifold hose firmly, then to the low-side service port (generally the larger line).
- Purge the hose, open the low-side valve and watch the clear tube empty; close the valve as soon as it is clear. This only takes a few seconds.
- Verify the charge against the nameplate, cap the port, and run the system at least one hour so the product circulates.
Use it when
- A system in this size range loses charge every season and the leak is in a coil or a joint you cannot reach.
- You need to keep the customer running today and schedule the coil or lineset repair later.
- You want a preventive treatment against the small pinhole leaks that develop over time.
Frequently asked questions
Do I need to evacuate or pump down the system? No. Inject into the running system through the low-side port.
Can I inject while adding refrigerant? Yes. The refrigerant being added carries the sealant into the system.
Will it clog my gauges or metering device? Max Seal is proven not to clog manifold gauges and not to plug TXVs, capillary tubes or pistons.
Is a small bubble in the tube normal? Yes. It is a gas bubble from vapor pressure during filling.
Related Xantus products
Documents
Product bulletin, SDS and application videos from the manufacturer: xantusproducts.com/how-to-videos. See the full line on our Xantus Products brand page. Ships from Oozzio's Illinois warehouse; call 217-607-5850 with application questions.
