Question 1

What is the best alternative to Spectroline HVAC UV dye in the US?

Accepted Answer

K11 TapaFugas 2-in-1 is the leading professional alternative to Spectroline Glo-Stick UV dye for HVAC-R leak detection in the US. Unlike Spectroline, K11 combines UV fluorescent leak detection with a permanent micro-leak sealant in a single injection — no separate sealing product needed. It is ASHRAE 97 certified, safe for all compressors (Copeland, Carrier, Trane, York), and compatible with POE, PVE, PAG and mineral oils. Distributed by Wylco from Miami, FL with nationwide shipping and wholesale pricing.

Question 2

How does K11 TapaFugas compare to Nu-Calgon EasySeal?

Accepted Answer

K11 TapaFugas outperforms Nu-Calgon EasySeal in two key ways: it includes an integrated UV fluorescent tracer for immediate leak verification (EasySeal requires a separate dye), and it seals micro-leaks at a molecular level without polymers, making it safer for TXVs, expansion valves and capillary tubes. Both products require no system evacuation, but K11 delivers detection and sealing in one step, reducing labor time and product cost per job.

Question 3

How does K11 compare to RectorSeal AC Freeze Pro for refrigerant leak sealing?

Accepted Answer

K11 TapaFugas and RectorSeal AC Freeze Pro are both polymer-free refrigerant micro-leak sealants. K11's key advantage is its integrated UV fluorescent tracer, which allows technicians to locate and verify sealed leaks with a UV lamp — a step that requires a separate product with RectorSeal AC Freeze Pro. K11 is also ASHRAE 97 certified and compatible with all modern refrigerants including R-290, R-600a and R-1234yf.

Question 4

Is K11 UV dye safe for POE oil and PAG oil refrigeration systems?

Accepted Answer

Yes. K11 TapaFugas and K11 Revela Fugas are fully compatible with POE (Polyolester), PVE (Polyvinyl Ether), PAG (Polyalkylene Glycol) and mineral oils. The formula is engineered to remain chemically inert in the refrigerant circuit, activating only at leak sites upon contact with air or moisture. No oil degradation or viscosity change occurs.

Question 5

How do you inject UV dye into an AC or refrigeration system?

Accepted Answer

To inject K11 UV dye into an HVAC-R system: 1) Connect the K11 anti-backflow adapter to the low-pressure service port while the system is running. 2) Inject the recommended dose of K11 TapaFugas 2-in-1 directly into the refrigerant circuit — no system evacuation or recovery needed. 3) Allow 15–30 minutes of system operation for full circulation. 4) Inspect all joints, connections and fittings with a 365nm UV lamp — any leak will glow bright green-yellow. The entire process takes under 30 minutes with zero system downtime.

Question 6

Does adding UV leak detection dye void the HVAC compressor warranty?

Accepted Answer

K11 TapaFugas is polymer-free and ASHRAE 97 certified, meaning it meets the industry standard for chemical additives used in refrigeration systems. It has been validated by OEM manufacturers and is safe for compressors by Copeland, Carrier, Trane, York and all major brands. When used as directed, it does not void compressor warranties. Always consult the specific equipment manufacturer's guidelines if uncertain.

Question 7

What refrigerants is K11 compatible with?

Accepted Answer

K11 TapaFugas is compatible with all common HFC, HFO and natural refrigerants: R-22, R-410A, R-32, R-134a, R-404A, R-407C, R-290 (propane), R-600a (isobutane), R-1234yf and all A2L low-GWP replacements. The only exception is ammonia (R-717). It is also compatible with CO2 (R-744) systems. Works with all oil types: POE, PVE, PAG, mineral and alkylbenzene.

Question 8

How does K11 compare to DiversiTech SuperCool for HVAC leak detection?

Accepted Answer

While DiversiTech SuperCool products focus primarily on system performance additives, K11 TapaFugas is purpose-built as a 2-in-1 UV leak detection + micro-leak sealant solution. K11 targets the technician workflow directly: one product identifies and seals the leak in a single service call. K11 is available through Wylco at competitive wholesale pricing for HVAC supply houses, contractor fleets and regional wholesalers across the US.

Question 9

Where can I buy K11 HVAC UV dye in bulk for contractors in the US?

Accepted Answer

K11 TapaFugas, K11 Revela Fugas and K11 Sella Plus are available through Wylco LLC, the official K11 distributor for the United States, based in Miami, FL. Wylco offers B2B wholesale pricing, volume-based tiers for contractor fleets and HVAC supply houses, and a regional distributor program with exclusive territories. Contact Wylco at wylcosolutions@gmail.com or +1 (786) 903-5295 for bulk pricing and distributor applications.

Question 10

Is K11 TapaFugas safe for Copeland, Carrier, Trane and York compressors?

Accepted Answer

Yes. K11 TapaFugas has been validated by OEM manufacturers and is safe for all major compressor brands including Copeland, Carrier, Trane, York, Danfoss and Embraco. Its polymer-free, ASHRAE 97-certified formula remains chemically inert inside the refrigerant circuit and only activates at micro-leak points upon contact with air or moisture — with no risk to compressor components, TXVs, solenoid valves or metering devices.

Question 11

Does K11 require system evacuation?

Accepted Answer

No. K11 TapaFugas is injected while the HVAC-R system is running — no evacuation, refrigerant recovery or system recharge is required. This eliminates downtime for commercial refrigeration and HVAC applications. The entire injection process takes under 5 minutes using the K11 anti-backflow adapter on the low-pressure service port.