Category: in the news

RectorSeal® Introduces Safe, Quick and Easy Leak Sealant Injection Method– AC Leak Freeze® PRO


AC Leak Freeze® Pro is the leak sealant formula and applicator combination that’s safe for the HVAC/R service tech and the refrigeration system.

Houston–RectorSeal® LLC, a manufacturer of quality HVAC/R products, has introduced AC Leak Freeze® Pro, a safe, quick and easy refrigerant leak sealant applicator for residential and commercial refrigeration and air conditioning systems.

AC Leak Freeze Pro is an 11.5-inch-long applicator that consists of a flexible, easy-to-handle, transparent refrigeration hose and an attached copper reservoir, which contain a total 1.46-ounces of the same trusted, non-polymer, ac leak sealant formula as the renowned syringe-based AC Leak Freeze injector. Unlike some other disposable leak sealant applicators, AC Leak Freeze Pro doesn’t require a system pump down with R-410A systems and safely withstands all typical refrigerant pressures.

The Pro applicator is designed for use with 1.5 to 6-ton systems  and is available with both the blue AC Leak Freeze and green AC Leak Freeze with Magic Frost formulas, the latter which contains a compressor life-extending lubricant additive.

One side of the hose connects to the refrigeration system’s low side. The AC Leak Freeze formula is propelled into the system within seconds once the hose’s reservoir is connected to either the high side or a refrigerant cylinder via a charging manifold. The disposable, one-time-use, AC Leak Freeze Pro applicator’s nylon hose, brass fittings and copper reservoir are all 100-percent recyclable.

AC Leak Freeze Pro is the HVAC/R industry’s safest formula for service technician and the refrigeration system. It’s proven compatibility flows with refrigerant/oil to permanently seal small leaks and prevent them in the future. The patent-pending refrigerant leak sealant formula is not moisture activated, has a safer flashpoint rating than the competition, and doesn’t use polymers that can potentially clog compressors, recovery/evacuation units, Schrader valves, capillary tubes, TXV valves, micro channels or manifold gauges.

Other AC Leak Freeze Pro features are:

  • hose and reservoir are factory-sealed to prevent injecting air or atmospheric moisture into the system;
  • the nylon hose’s 45-degree connection fitting allows easier hand access than straight fittings in cramped Schrader valve environments;
  • transparent hose eliminates guess work as to when application is completed;
  • and boxed four-color packaging designed for distributor J-hook merchandisers.

29 Nov

INSTALLING FIRESTOP SYSTEMS OR FIRE CAULK?’s latest issue has an excellent artcile about whether or not to choose firestop systems or fire caulk:

MANY HAVE HEARD ABOUT ‘FIRESTOP.’ WAIT, WHAT? WHAT’S FIRESTOP? Firestop is a tested and listed SYSTEM. The SYSTEM comes from the many fire tests conducted at leading laboratories like FM Approvals, Intertek or Underwriters Laboratories. The manufacturers of these materials invest a lot of money and time ensuring that they—the materials— in fact, work for the specific application and required time, based on proven fire test procedures, such as ASTM E 814 and UL 1479 for penetrations and ASTM E 2307, ASTM E 2837, ASTM E 1966 and UL 2079 for joints. Therefore, firestopping should be all about listed, classified firestop SYSTEMS. The SYSTEMS are an assemblage of materials—the floor or wall assembly, annular space or joint size, type, size of penetrating item and possible coverings that have been tested for a particular application, a particular hourly fire-resistancerating and/or smoke-resistant property. The SYSTEMS are then listed and classified by FM Approvals, Intertek or UL, and/or other credible independent third-party testing labs. Now we come to the installation of these firestop systems, and it seems that despite the hundreds of millions of dollars invested by the manufacturers in testing, that some in the industry continue to refer to it as, “we installed the fire caulk, so the floor and wall are now rated.” Really? There’s a magic product that provides fire-ratings?

For the full article, head on over to this page, and consider subscribing

20 Oct

Is this as bad as it looks? Mold in apartment A/C vent

r63idkvUser RobotDrZaius writes:

I took off the vent cover because I was trying to close it and the switch was stuck. Looks like death inside. Now, I’ve lived in this apartment with my g/f for almost 6 months with no health or respiratory problems…is this as awful as it looks to my untrained eye? Should I contact my apartment’s maintenance people or just clean it myself (wearing a dust mask, of course)?

zeimbo answered: It’s hard to tell from the pic- your best bet would be to get a spore test kit which most hardware stores will have relatively cheap. I would not attempt to do anything to the insulation as it may contain asbestos. If the kit comes back positive for mold spores, keep your receipt and tell the management you’d like to be reimbursed and have it cleaned..


29 Sep

Plumbing: Looking for advice with water service fix?

0llq4jcternarybit writes:

The valve farthest right is leaking. Below that is heavily corroded galv that goes into the ground. Moving right, the first tee feeds into a sprinkler system which is the PVC you see in the lower-right of the corner. I want to leave that stuff intact because it’s working fine and it would be a huge hassle to mess with.

Moving right again, I guess that’s a pressure regulator? No idea what the ball valve is doing there, I guess just another shutoff option. Then it goes into PVC and back into galv into the house.

I partially exposed the corroded buried galv going into the first valve, and it’s horrible. Super corroded, must be original from 1956. Got about 2′ exposed before I ran out of time. The valve and exposed pipe is leaking pretty good, 2-3 drips per second now.

I want to replace the corroded galv and leaking valve, but I also want to do everything else as correct as possible.


  1. What do I replace the galv with? I guess UPC states I can put almost anything underground. Thinking either poly or PVC, then backfilled with sand. Open to input.
  2. Do I need a pressure regulator at all?
  3. Any other recommendations for cleaning this up and doing it as properly as possible?


Answer: Check code to see what see if they allow PVC or Pex  for underground water supply. I personally like copper, use rolled soft copper or PEX for the water service from the water meter to the house, with those products you will have no connections underground. The ball valve was probably installed because the gate valve for the water service was bad.

The pressure regulator is there for a reason so make sure you reinstall it.

As far as cleaning up that mess, I would run the new water service straight up to the house service. Between the ground and the service install a ball valve, after that install the regulator, tee off for the sprinkler and tie into the house service. You should be able to install the regulator vertically. Get the model number and call the manufacturer to make sure. Also if you use copper you will need a di-electric union to isolate the copper from the Galvanized pipe to prevent electrolysis. Pex will be the easiest to install if it is allowed in your area

– Rick Ensley, SureSeal Product Manager

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22 Sep

Dussault Mechanical Wins RectorSeal iPad Promotion

rectorsealawardRectorSeal concealed 25 redeemable Golden Tickets inside Aspen Pumps’ Mini White, Orange Mini, Orange Maxi, Aqua Mini, and Micro V Series condensate pump packaging.

RectorSeal Corp., Houston, a leading manufacturer of HVACR products and accessories, presented Michael Clarke, president of HVAC contractor Dussault Mechanical Services, Hudson, N.H., with an iPad Mini 3 tablet on May 10, for winning RectorSeal’s Aspen Pumps Golden Ticket promotion.

RectorSeal held the promotion last Fall when it randomly concealed 25 redeemable Golden Tickets inside Aspen Pumps‘ Mini White, Orange Mini, Orange Maxi, Aqua Mini, and Micro V Series condensate pump packaging distributed throughout its North American HVAC wholesalers.

Clarke had a hunch he might find one of the Golden Tickets after buying 410 Aspen Mini White Series condensate pumps for a Cambridge, Mass.-based 150-unit multi-family housing complex he was retrofitting from window units to more efficient ductless mini-split air conditioning. His 30-year mechanical contracting firm recently finished installing the 43-year-old complex’s 150 condensers and 410 evaporator coils manufactured by Mitsubishi Electric, Suwanee, Ga., to improve indoor air quality and energy efficiency.

The Mini White Series is designed to be installed externally below a mini-split evaporator coil, automatically drain excess condensate from the drain pan and aesthetically match most mini-split exterior encasement finishes. Its unique modular quick-connect wiring speeds installation and the easy-access encasement pops off for fast debris filter change-outs or other maintenance without accessing the evaporator coil casing.

The Golden Ticket pump was purchased at the Wilmington, Mass. branch of wholesale distributor Homans Associates — division of Watsco, the largest distributor of HVAC/R equipment, parts and supplies in the U.S.

RectorSeal’s New England territory manufacturer’s representative, Robert Forbes, partner, Gimper Forbes LLC, Edison, N.J. presented Clarke with i-Pad Mini 3.

“This is the first of many Aspen Golden Ticket promotions we plan in the future,” said Rob Moore, RectorSeal’s Aspen Pump product manager, who designed the promotion with Riley Archer, Rectorseal’s national sales manager, construction.

19 May