Nu-Calgon EasySeal Direct Inject bottle with UV dye shows sealant flow.
Nu-Calgon EasySeal Direct Inject-UV Dye sealant being applied for leak sealing.
Nu-Calgon EasySeal Direct Inject bottle with UV dye shows sealant flow.
Nu-Calgon EasySeal Direct Inject-UV Dye sealant being applied for leak sealing.

Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Leak Sealant (2–7.5 Ton)

Overview Now made in the U.S.A., Nu-Calgon EasySeal Direct Inject-UV Dye pairs the trusted EasySeal sealant with...
Vendor: Nu-Calgon
Availability: In stock
£89.26
£89.26
Please hurry! Only 5 left in stock
Subtotal: £89.26
10 customers are viewing this product

Free UK Delivery on All Orders

No Minimum Spend Fast & Reliable Delivery Ships Across the UK

Free Returns

30-Day Free Returns
Nu-Calgon EasySeal Direct Inject bottle with UV dye shows sealant flow.

Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Leak Sealant (2–7.5 Ton)

£89.26
Nu-Calgon EasySeal Direct Inject bottle with UV dye shows sealant flow.
Nu-Calgon EasySeal Direct Inject-UV Dye sealant being applied for leak sealing.

Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Leak Sealant (2–7.5 Ton)

£89.26
Description
Description
x

Overview

Now made in the U.S.A., Nu-Calgon EasySeal Direct Inject-UV Dye pairs the trusted EasySeal sealant with UV dye for visible leak tracing. Marketed as the strongest sealant on the market, it is said to have sealed over a million leaks. The direct-inject system eliminates the need to pump down R-410A units, saving steps and reducing downtime in a busy service environment.

Key benefits

  • Concentrated formula means less material in the system, helping minimize interference and waste.
  • The clear injection tube lets technicians watch the sealant enter the system, aiding confidence during service.
  • No need to pump down R-410A units with the Direct Inject approach, saving steps and time.
  • Versatile across multiple system types: split systems, heat pumps, microchannel coils, packaged units, and mini splits.
  • One time use design for a single service application, reducing leftover material.
  • Leak sealant paired with UV dye supports quick visual confirmation of dye presence and suspected leak areas.

Designed for a range of HVAC configurations

  • Split systems and heat pumps
  • Microchannel coils and packaged units
  • Mini splits and other compact configurations

In practical field scenarios technicians note the absence of pumping down as a time saver. The clear tube provides a practical cue as the sealant enters, while the UV dye aids rapid verification under UV lighting, enabling quicker diagnostics without large system downtime.

How to use and safety notes

Follow the product sheet for exact dosage and steps. The formulation is designed to work within the refrigerant circuit without routine pumping down, and it is intended for use by trained HVAC professionals who handle refrigerants following industry guidelines. Store in a cool, dry place away from ignition sources and never exceed recommended quantities.

FAQ

Q: What systems is Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye suitable for?

A: Suitable for split systems, heat pumps, microchannel coils, packaged units, and mini splits; designed for 2 to 7.5 ton capacity.

Q: How does the UV dye help during service?

A: The dye enables visible leak detection under UV light, helping verify sealant flow and locate leaks.

Shipping & Return
Shipping & Return
x

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Complete Your Setup

Example product title
£89.26
£89.26
Example product title
£89.26
£89.26
Example product title
£89.26
£89.26
Example product title
£89.26
£89.26
Example product title
£89.26
£89.26
Example product title
£89.26
£89.26
Example product title
£89.26
£89.26
Example product title
£89.26
£89.26
Example product title
£89.26
£89.26
Example product title
£89.26
£89.26

Recently Viewed Products