Air Conditioning
AC Stop Leak Plus tm
A/C Products by GWR
Automotive Products
#1 Choice of Professional
/ Commercial Installers Worldwide!
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Our unique additives lubricate all moving metal parts in the AC system, while revitalizing O-Ring elasticity. More remarkably though, they seal hard to find leaks in evaporators, condensers, hoses and other difficult to repair AC components. Don't spend hundred or even thousands to replace expensive parts only to find out you missed a small pin hole else ware and now all the new gas has leaked out.
Stop Leak Plus can be use as a tune-up
conditioner during a Freon top-off when components are in overall good shape, or
as a complete system rejuvenator when Freon and oil are added during a major
repair or service.
Programs are available for all levels of distribution to professional
technicians, from single cases for automotive applications to gallon containers
for HVAC commercial use. We even offer the specialized tools needed for
installation, simply scrolling down the page to learn more about them.
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For those of you wondering,
Please note that if a sealer comes in a pressurized can, |
This product in not like all the
others that claim to seal A/C leaks...
We do not react to moisture and therefore do not come in a sealed,
pressurized can that sometimes hardens while you are trying to install it.
Additionally, this product will not clog installation equipment or the recycling
machines needed to remove gasses from systems being serviced. Take a look at
this picture and you will see why the products in pressurized can are not only a
problem for a recycling machine but also the system itself.

The end view of a solenoid valve from an evacuation machine,
notice the hardened particles of another stop leak product. These granular
particulate float around in the system until they attach to a part or get
trapped in a filter or expansion valve. When that happens, system efficiency is
reduced or even stopped and another repair is required to remove the bad sealer
and the parts that have been damaged.

How ours is different and why it works...
Three elements are necessary for initial activation of GWR's Stop Leak
Plus.... the Refrigerant, the system pressure and movement or flow velocity.
Our unique product physically changes when these elements are all present,
thereby "activating" it's properties. When a leak occurs,
whether pre-existing or in the future, refrigerant and some oil escapes through
the hole at a rapid rate of speed creating a venturi action.
This high speed flow allows some of the activated Super Stop Leak Plus to
likewise pull through. When these escaping molecules bombard the ragged edges
of the hole they begin to attach to the area and each other, eventually forming
a seal or patch. Because Super Stop Leak was formulated to stay flexible and
pliable after the seal is created, it will remain secure through years of on and off
temperature cycles in and HVAC system or engine/vehicle vibrations in automotive
use.
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Simply
stated... This is the finest |
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![]() Note: One gallon of SLP can treat 60 to over 100 residential units |
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Still concerned about using Stop Leak Plus? We believe this expert
testimony definitively answers the question everyone with a leak
eventually asks. |
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When ask "Will a Stop Leak Sealer cause damage to A/C Systems?" |
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"Since the introduction of AC sealers several years ago, we noticed a drop in evaporator sales but an increase in compressor sales, especially for older vehicles. I attribute that to the fact that a sealer makes an AC job affordable when there is a leaky evaporator and compressor. Since the sealers do a good job on evaporator leaks, but won't seal compressor shaft seals, we are finding customers generally authorize a replacement compressor and the stop leak sealant. In my examination of over 2,000 returned compressors over the years, I have not noticed a significant problem with sealants. In fact, less than ten units showed congealed sealant at all. Upon closer examination, in only a few cases could the congealed sealant be determined to be the cause of the failure. And this was no doubt due to the technician failing to replace the dryer and leaving moisture in the system during servicing. Additionally, in just the last 3 month summer sales season, we sold over 460 compressors and did not receive even a single return due to sealers." |
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Please note that SLP is
a professional product and is not intended for DIY consumer
installation, special service tools and a thorough working knowledge
of A/C repair are required. As such, we "do not" have single
application bottles available for Consumers / DIY customers.
Before calling us, we
suggest you contact a local A/C repair shop for a professional
install when you do not have the proper training or the necessary
tools.
Additionally... |
If we have not answered your questions so far, scroll down the page to our FAQ
section. Additionally, please feel free to call and speak to a tech support
person.
Tech Support and Order Line... 1 (800) 266-4497 (2pm to 8pm EST)
SUPER STOP LEAK PLUS tm prevents comebacks, period!
That means more profit for installers and no headaches for consumers.
GWR’s new SUPER STOP LEAK "Plus" is specifically
formulated to prevent leaks and repair existing leaks... while revitalizing
gaskets and o-rings with patented lubricates. Because of its liquid consistency,
you install it just like standard A/C oil. A technician simply uses an A/C
oil injector tool to install through the low side service port but you can
also draw it through the center tap on a set of manifold gauges, if you prefer.
This means the system does not need to be evacuated to use our product, another
time saver! Simply start the engine or system, turn the A/C to maximum cooling,
install SUPER STOP LEAK "Plus" and recharge the system with R-134A, R-12,
R22 or R410A as per the service manual. Make it part of your maintenance
service... add SUPER STOP LEAK "Plus" to every A/C service and keep
systems at optimum performance levels.
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Basic Installation
Configuration |
IMPORTANT:
Can a consumer install GWR's Stop Leak Plus?
This professional product is not something you can buy at a local auto
parts store, or take home for a simple installation. On the other hand, a
mechanically inclined person could use the Super Stop Leak Plus if they are
familiar with A/C repair and have the required tools necessary to test and
install the product correctly. At the very minimum, you will need the oil
injector tool used by shops for the last 30 years, to put refrigerant oil into
A/C systems. Additionally, you should have a set of manifold gauges and a pump
to pull the vacuum for testing leak down time.
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This extremely high quality, professional tool
is available from GWR, for under $50. |
How does it work?
Super Stop Leak Plus is an inert liquid until it mixes with all Freon gases.
Once installed in a closed circuit, it activates based on several conditions
present in the system. As it begins to travel with the gases, it seeks out
leaks and migrates through small holes to the outside air. During the migration
through the hole, it begins to build and then congeal to form a chemical weld
that seals the leak. This "patch" never hardens, but remains pliable so it can
flex with expansion and contraction of a system.
How large a leak will it repair?
In general, Super Stop Leak Plus is designed to seal an A/C system that has
slow leaks, taking weeks or months to show up. The system must be able to hold
a vacuum on the low side for 45 minutes, at a minimum. If the vacuum leaks out
or changes, within an hour, the hole is too large to be sealed and manual
repairs need to be made.
Will it seal evaporator leaks?
Yes, plus it will also seal leaks in the condenser. Additionally, the
special oils will rejuvenate all connection hoses, gaskets and o-rings. The
only part of a system where a leak can not be repaired is a compressor shaft
seal. All seals are designed in a way that leaks are inevitable because shafts
that go through them, continually turns at the seal's mating lip.
How much do I use?
One 2 oz. bottle is all that is necessary to seal and condition one
average size vehicle’s A/C system. When adding Super Stop Leak Plus to an
evacuated empty system, substitute one bottle of Super Stop Leak Plus for
2 oz. of the regular A/C oil. (i.e. A 10 oz regular fill is now 8 oz's oil and
one bottle of Super Stop Leak Plus). If the vehicle has a slow leak but still has a
partial charge at service time, simply add one bottle of Super Stop Leak Plus along with
the required amount of refrigerant until the system meets factory specs for a
new charge. (Per service manual specifications)
Is it available for both R-134A and R-12 systems?
Yes! There is a Super Stop Leak Plus for both R-12 and 134A A/C systems,
plus it works with blended refrigerants as well. Be sure to specify either the
R-12 or 134A version when dealing with automotive applications, to match system
being serviced.
What about commercial or home A/C systems?
We do have additional formulas for home, commercial and industrial
refrigeration systems. These unique products are revolutionary and just as easy to
use as our automotive versions. Product specific versions for R22 and R410A are
available in bulk gallons, for installation by professional service companies.
(Please note we do not have single application bottles available for consumers,
or DIY customers.)
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We encourage
professional installers to order one of these incredible tools, they
are simple and the fastest way to inject our Super Stop Leak Plus
additive. Best of all you don't have to bring down a system, you
can inject at full system pressure based on the seal system in the
high pressure pump. Additionally, the reservoir bottle holds 16
ounces of SLP, so you do not have to stop and refill (smaller tools)
when you need to put 3, 5, 10 or more ounces into one unit. |
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How long will it stay in the system?
Super Stop Leak Plus forms a permanent repair when it comes into contact
with venturi flow, specific temperatures, pressure, refrigerant and other
parameters at one specific location. If there are no leaks in the system and
you’re installing it for preventative maintenance, the product simply remains a
high quality liquid lubricant until a leak is detected. Every vehicle should
have a bottle installed when a major repair is performed but also on systems
with no problems. It is the cheapest insurance you can buy!
What happens when I recycle the refrigerant?
Super Stop Leak Plus is removed from the A/C system with the refrigerant
during standard recycling procedures. It separates from the refrigerant during
evacuation and joins the reclaimed oil. Since it flows, is an oil and does not
harden in a system, it will not harm or clog recycling machines during
transitions.
How long has the product been on the market? Does it really work?
The Super Stop Leak Plus has been sold to the professional installer for
over 15 years and installation problems are virtually non existent. The few
complaints we have received are always from installers who fail to check over
the system before installation of the product. When the holes are just to big
or there are too many (will not hold a steady vacuum for 45 minutes), even our unique,
patented sealant, may not repair a leaky system. Rely on the best sealer in the
business, we guarantee there's not a better one available... anywhere in the
world!
| Due to blatant attempts to copy our unique, patented product and literature,
GWR, owner of the AC Stop Leak Plus brand, hereby posts Legal Notice... AC Stop Leak Plus is a Trademark of GWR Specialty Automotive Products |
| Any unauthorized
use of the name or copyrighted materials from this site will be
subject to federal prosecution and adjudicated compensation for damages of punitive and or compensatory nature! |
| Disclaimer: Stop leaks such as Supecool's Total Leak Stop, Bar's A/C Stop Leak & Sealer, UView's AC Stop Leak Plus, FJC's Air Conditioning Stop Leak and other less famous brand name products, are unauthorized copies of the patented formula sold by GWR under the name AC Stop Leak Plus. Likewise, because these products do not match the technical specifications of the unique, proprietary formula, they do not have our endorsement or approval. Total Leak Stop, A/C Stop Leak & Sealer, Air Conditioning Stop Leak and AC Stop Leak Plus are trade marks of their respective owners. |
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GWR Specialty
Automotive Parts Copyright 1997 - 2010 1(800) 266-4497 Email: sales@gwrauto.com |
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