DURACOOLŽ Refrigerants are the leading hydrocarbon refrigerant on the market today and that's because it provides consistently superior cooling capabilities and boasts all the qualities of a product that is not only safe and highly efficient but it is also NON OZONE-DEPLETING and NON GLOBAL-WARMING. Here are the facts:


Guaranteed in writing!

Over 5 million plus vehicles converted in the last 5 years.

System head pressures greatly reduced from R134a systems - similar to R12 systems


Cools extremely better than R134a - Cools marginally better than R12

Up to 35% more efficient than R134a - Moderately more efficient than R12


Simple economical conversions of high/low screw on fittings - NO RETROFIT REQUIRED!

Compatible with mineral & synthetic oils including Pag & Ester - NO OIL CHANGE REQURED!

No special equipment required for installation. Use your R12 or R134a equipment and tools

Requires only 40% of charge by weight of R134a and 35% of R12


Patented hydrocarbon friction fighter enhances performances and safety

Auto ignition of 1635°F is ACTUALLY a higher auto ignition than R134a which is 1328°F

Absolutely non-toxic - 100% natural organic product


The DURACOOLŽ hydrocarbon refrigerants are available in three packaging sizes.


A natural solution to a global dilemma
DURACOOL 12aŽ     HFC 134a CFC 12
1 oz         2.5 oz   2.8 oz  
2 oz         5.0 oz   5.7 oz  
3 oz     = 1/2 can   7.5 oz   8.5 oz  
4 oz         10 oz   11.4 oz  
5 oz         12.5 oz   14.2 oz  
6 oz     = 1 can   15 oz   17 oz  
7 oz         1 lb. 1 oz 1 lb. 4 oz
8 oz           4 oz   6 oz
9 oz     = 1 ˝ cans     6 oz   9 oz
10 oz           9 oz   12 oz
11 oz           11 oz   15 oz
12 oz     = 2 cans     14 oz 2 lb. 2 oz
13 oz         2 lb.     5 oz
14 oz           3 oz   8 oz
15 oz     = 2 ˝ cans     5 oz   10 oz
1 lb. (16 oz)         8 oz   13 oz
  1 oz         10 oz 3 lb.  
  2 oz   = 3 cans     13 oz   3 oz
  3 oz         15 oz   6 oz
  4 oz       3 lb. 2 oz   9 oz
  5 oz   = 3 ˝ cans     3 oz   12 oz
  6 oz         7 oz   14 oz
  7 oz         9 oz 4 lb. 1 oz
  8 oz   = 4 cans     12 oz   4 oz
  9 oz         14 oz   7 oz
  10 oz       4 lb. 1 oz   10 oz
  11 oz   = 4 ˝ cans     3 oz   13 oz
  12 oz         6 oz 5 lb.  
  13 oz         8 oz   2 oz
  14 oz   = 5 cans     11 oz   5 oz
  15 oz         13 oz   8 oz
2 lb.         5 lb.     11 oz
  1 oz   = 5 ˝ cans     2 oz   14 oz
  2 oz         5 oz 6 lb. 1 oz
  3 oz         7 oz   4 oz
  4 oz   = 6 cans     10 oz   6 oz
  5 oz         12 oz   9 oz
  6 oz         14 oz   12 oz
  7 oz       6 lb. 1 oz   15 oz
  8 oz         4 oz 7 lb. 2 oz
  9 oz         6 oz   5 oz
  10 oz   = 7 cans     9 oz   8 oz
  11 oz         11 oz   10 oz
  12 oz         14 oz   13 oz
  13 oz   = 7 ˝ cans   7 lb.   8 lb.  
  14 oz         3 oz   3 oz
  15 oz         5 oz   6 oz
3 lb.     = 8 cans     8 oz   9 oz

Using DURACOOL 12aŽ to replace R-12 substitutes and / or r-134a is extremely easy. DURACOOL 12aŽ is compatible with both mineral and synthetic oils found in both systems. You can use the oil that was originally installed in the system: mineral oil in old R12 systems and synthetic oil in old R134a systems. If you need to add oil, you can also use Duracool Oil ChillŽ, which is compatible with either type of oil.

To replace R-12 substitutes with DURACOOL 12aŽ requires the removal of all existing refrigerant. Charge the DURACOOL 12aŽ using 35% of the original R-12 charge weight listed on the system tag. eg; system tag calls for 40oz of R-12, use 14oz DURACOOL 12aŽ. Since DURACOOL 12aŽ is compatible with the mineral oils there is no need to change or flush your system. DURACOOL 12aŽ will work with the existing components. Pull a vacuum to at least -10 in hg.

To replace R-134a with DURACOOL 12aŽ you must remove all the existing R-134a. Charge the DURACOOL 12aŽ using 40% of the original (R-134a) charge weight listed on the system tag. eg; system tag calls for 40oz of R-134a, use 16oz DURACOOL 12aŽ. Since DURACOOL 12aŽ is compatible with the synthetic oils there is no need to change or flush your system. DURACOOL 12aŽ will work with the existing components. Pull a vacuum to at least -10 in hg.

In Canada there are no requirements regarding the conversion of R-12 / R-134a to DURACOOL 12aŽ.

The USA EPA requires that the R-12 systems be retrofitted to R-134a or other substitute prior to the use of DURACOOL 12aŽ in such systems. The EPA does not state what constitutes a retrofit, but at minimum you must change your high and low side fittings and properly label your system.

1. Recover any existing refrigerant charge into a suitable container, regulations vary by region and the recovery of existing refrigerant may need to be completed by an authorized technician. Leak test the system, if a leak is detected the system must be repaired prior to charging. DURACOOL 12aŽ is flammable and should only be leak tested with an electronic hydrocarbon leak tester, soap bubbles or fluorescent tracer fluid. If leaks are detected, ventilate area, keep away from flames and repair the leak. After repair, continue with the charging procedure. Pull a vacuum of at least 25 cm Hg (10 in Hg).

2. Locate low side service port of the AC system. Generally it will have a blue or a black cap (Do not connect to high-pressure side. This may cause the components to fail and cause bodily injury.)

3. Remove low side dust cap. Connect hose to system by pushing on to the male service port fitting; ensure that the coupler fits snugly into place. The installation of conversion service port fittings may be required to permit connection.

4. Using only a device designed for the purpose, connect charging hose to the DURACOOL 12aŽ container. Ensure that you are only charging liquid DURACOOL 12aŽ into the low side of system.

5. After a minimum charge is achieved, start compressor and set system to high. When compressor cycles on and off about every 45 to 60 seconds stop the flow of refrigerant. Check vent for cooling. If cooling is inadequate or compressor is cycling excessively add small amounts of DURACOOL 12aŽ by opening and closing valve handle. Low side pressures should read between 30 and 38 psi.

6. Do not overfill. Exercise patience and let the system operate for several minutes before adding refrigerant.

7. Apply refrigerant identification tag on dry area near installation port.

8. DO NOT OVERCHARGE! Exceeding 60 psig on low side may damage compressor. In some cases, clearing the site glass overcharges the unit. Any overcharging may cause loss of cooling efficiency.

When charging systems with DURACOOL 12aŽ the pressures should be the same for the low side and about 5-10% lower on the high side than they would be if you were to use R-12 or R-134a.


Is DURACOOL 12aŽ a "drop in replacement"?
It is important to understand that there are two types of automobile air conditioning units, those charged with R12 and those charged with R134a (R134a is in all automobiles manufactured after 1994, some during 1993). DURACOOL 12aŽ is a drop in replacement for R134 automobiles, but requires a high and a low side fitting to convert R12 systems to R134a systems, before charging with Duracool 12aŽ. This is a very inexpensive conversion (generally under $20).

Does the system need to be completely empty?
Although mixing DURACOOL 12aŽ with R12 or 134a in your AC system would not damage or harm your system, it is illegal to charge your AC system without first evacuating the refrigerant that is currently in the AC unit.

Are the pressure and volume charts absolutely correct?
No, just like any other refrigerant, the pressure and volume charts should be used as a GUIDE.

We have found that you can have three of the same cars, same age, and they will all take different amounts of refrigerant, not significant differences, but different in volume still. The key is to use the chart as a guide rather than the rule. Often systems have component changes such as longer or shorter hoses - these types of changes may affect the volume which will affect the stated or recommended charge.

I'm charging a car and it's not going into the system, what's wrong?
It could be one of a number of issues:

  1. The compressor may be seized or damaged, in this case the refrigerant will not be pulled through the system. Check the fuse to make sure that there is power actually getting to the compressor.
  2. It could be that there is a problem with the hose system, to check this, install the can tapper to the hose and do not attached the hose to the automobile low fitting. Test it by releasing refrigerants through the hose (pointing the hose away from you or others). If the refrigerant sprays through the hose, this means that the can tapper and the hose components are working effectively.
  3. Next, install the quick release to hose end and then put a low side fitting (0095) into the quick release fitting, open your can tap and the refrigerant should flow through the fitting. If this happens then the kit is not blocked in any way.

If the compressor is working well and the kit seems to be working well but the refrigerant is not flowing into the system, you can contact the manufacturer at (780) 449-4777.

Why can't I fit the low side fitting on to my low side?
The low fittings are internationally generic on every R134a system. This would mean everything from 1993/94 onwards. The high side fittings have changed slightly during specific model years but generally the DC401 or 403 kits should accommodate most models and years.

If you find that the fitting appears to be too large to fit the hose attachment, this means that you are trying to fit the hose onto the "high fitting".

The low fitting is usually on the line from the accumulator or on the accumulator itself. The accumulator generally sits (on most cars) to the left of the engine rear (when facing the automobile as the installer). A line will run from the compressor to the accumulator, through the accumulator and run down towards the firewall. The low side fitting will be somewhere between the compressor and the firewall (generally); however, there are some cars that have their low side fitting under the car before the hose runs back into the compressor (such as some '92 Pontiac Grand Prix's which is right underneath the car). If the low side cannot be located, our technical assistance line may be able to locate it in the Mitchell Automotive Air Conditioning and Heating manual(s) - if the low fitting has been indicated on the engine diagrams. If not available, the only alternative is to contact a dealership and request further information.

How come the air is too cold/too warm?
Too warm:

Too cold:

When you reclaim DURACOOLŽ do you have to use separate containers from the other refrigerants if you are not reusing and if you are reusing.
Whether you are reusing the refrigerant or arranging for disposal, you should always use separate reclaiming bottles for different refrigerants, for the following reasons; reused refrigerants cannot be blended by law and secondly, disposal of the individual refrigerants require different disposal procedures.

Can you use the same tank for different refrigerants? Is there residual refrigerants left in the cylinders?
Yes you can use the same cylinders and there will be some residual refrigerant left in the cylinder, but not enough to affect performance.

When you recycle does the oil separate, friction-fighting additive.
The oil will not separate when the refrigerant is being recycled and will not separate when a system has leaked.

What setting should the evacuator be on when evacuating a system?
Vacuum settings should be set between 7-15 inches on the low side ideally. If a major evacuation has happened and a major component has been changed such as a compressor or evaporator then a hard vacuum should be pulled to 29 inches.

Does high head pressure get dangerous as it goes up? What is the maximum head pressure.
High head pressures can damage the compressor and other components, this is one of the attributes of DURACOOLŽ in that it allows AC systems to operate effectively at lowered head pressures. Because damage can occur if head pressures are very high, it is important to be cognazant of this and measure the psi accordingly. On the high side, head pressures should not exceed 260.

Will this product harm my evacuator?
Absolutely not, it is not corrosive and therefore cannot harm your evacuator. DURACOOLŽ is one of the friendliest products produced today. It will actually enhance performance and provide natural lubrication.


Will DURACOOLŽ harm my Air Conditioning and/or it's components?
DURACOOLŽ will not harm your AC system or it's components. In fact, it will actually add life to air conditioning and refrigeration equipment. This is because it is non-corrosive as compared to R134a and the R22 products that may breakdown into highly corrosive components.

No. DURACOOL 12aŽ is non-toxic, and totally organic. This is one of the major differences between the DURACOOL 12aŽ product and the R134a product that is highly toxic.


Is DURACOOLŽ flammable?
Like all hydrocarbons, DURACOOLŽ is flammable, and must be handled accordingly. Practically all lubricants, additives and oils used in the engine of a car are flammable. Gasoline is flammable. Hair spray, deodorant and whipped cream aerosol propellants are flammable. All must be transported, handled and utilized (or installed) using safe practices and following instructions where possible.

Have there been studies to determine the potential level of incidence, in terms of ignited automobile compartment leakage?
Internationally respected risk assessors Arthur D. Little, in a detailed UK-based study, estimated the risk of an ignited refrigerant leak in the passenger compartment of a motor vehicle as being in the area of 3 in 10 million. Their findings, from a local perspective, mean that if every car in the USA (some 50 to 60 million vehicles) were to use a hydrocarbon refrigerant such an accident might occur once in every 50 years.

What would the impact of and "incident level, once every 50 years" ignited automobile compartment leakage actually be?
In terms of the "impact", it is important to recognize that automobiles generally have 12-15 ounces of DURACOOLŽ refrigerant. If there were a full amount leak into an automobile compartment and it ignited, it would theoretically create a "flash" which would last 1-1.5 seconds.

What is the auto ignition for the DURACOOL 12aŽ product?
The world recognized LPG laboratory, SIMTARS, in Australia, has certified the ignition temperature of DURACOOL 12aŽ as being 1635°F or 891°C. SIMTARS reports (B/R 1/081 294) determined that the "temperature of probe at ignition" was:

% Gas in Air
3.7% 4.2% 4.7%
886°C 886°C 891°C
1626°F 1626°F 1635°F

There are eminent Risk Assessment Reports available which document the safety of hydrocarbon refrigerants in motor vehicle air conditioning systems.

What is the difference between regular propane and the refrigerant propane that is used to manufacture the DURACOOLŽ products?
The propane that is regularly used for barbecues, and general consumer or commercial use is a by product of the hydrocarbon manufacturing process (the production and refining of raw oil products). The propane used for standard applications (such as your home barbecue). In order to utilize the product as "refrigerant grade" the product is further refined to render out methane gases and other impurities. This refrigerant propane is different in many ways, most notably is the disparity in the auto ignition. Essentially this refining makes the product safer and more stable. The Auto ignition for regular grade propane is 842 F, while the DURACOOLŽ product's auto ignition is 1635 F.

Why does DURACOOLŽ have the scent of propane?
The additive "ethyl mercaptin" is actually a stenching agent that is added for safety reasons. Mercaptan, as it is commonly known, is added to natural gas, propane, butane and virtually all gases as an agent that will alert the user to any leakage. The addition of mercapan should be viewed as a safety feature (see below). Mercaptan is also condensable in the AC system and cannot limit performance in any way and will not negatively impact components. The mercaptan smell is not detectable under regular working conditions or under normal install conditions.

Note: It is important to recognize that, whether a refrigerant is toxic or flammable, the risk of leakage into the automobile compartment is very, very minimal. The great thing about DURACOOL 12aŽ is that the product provides for a built-in safety feature that ensures IMMEDIATE notification to the driver and the driver's family when there is a leak. This safety feature is the addition of 'mercaptan' and this feature is not available with 134a or any other refrigerant on the market today! Overall, the safety aspects of the DURACOOLŽ Refrigerants by far outweigh those of the toxic alternatives available today.


Is DURACOOLŽ Environmentally friendly?
Yes. The DURACOOLŽ line of products is NON-OZONE DEPLETING and NON-GLOBAL WARMING. Only hydrocarbon refrigerants can claim to achieve both of these criteria. GREENPEACE have been long singing the praises of the hydrocarbon technology, and encouraging governments and industry to adopt it over the current products.

Is Global Warming really an issue?
The Government first found that use of R12 greatly contributes to the depletion of our ozone and has accordingly outlawed the use of the R12 through a phased-out plan that was greatly accelerated. Now the Government has found that 134a greatly contributes to the high global warming potential (GWP). The GWP issue has been the focus of the Kyoto Protocol Branch of the United Nations Industrial Development Organization and the issues of temperature changes throughout the world are receiving a great deal of focus. In fact, there has been an agreement with the countries in the United Nations to go forth with a gradual phase-out of HFC's such as R-134a (following in the footsteps of R12). We anticipate that the phase-out will be accelerated just as the R12 phase-out was as investigation and forecasting of global warming is completed and published.

Does Environment Canada endorse this product?
Environment Canada does not endorse or approve any refrigerant. They do, however, regulate refrigerants that are found to be harmful to the environment (products such as R12 and R134a, both of which are regulated by Environment Canada). Because DURACOOLŽ is not harmful to the environment, this product is not regulated.


IS DURACOOL 12aŽ efficient?
Yes. It has been found to operate even more efficiently than R-12, and significantly better than R-134a. We have recorded energy savings up to 35%. There are also efficiency increases over the long term because the DURACOOL 12aŽ offers longevity to the air conditioning systems and components. This equates to long term savings on repairs and maintenance of refrigeration and air conditioning equipment.

Do you have clear supporting evidence of higher efficiency, etc?
DURACOOLŽ labs have converted and documented the energy effectiveness and the superior cooling capabilities. These studies are available through our customer service department of Deepfreeze Refrigerants, the contact information can be found at the back of this document.


Does DURACOOLŽ manufacture any other hydrocarbons under private label?
No, however, there have been businesses in the US, Canada or via the Internet which have claimed that their product is DURACOOLŽ "private labeled" and this is absolutely untrue. These businesses are attempting to pass off a poor quality product using the DURACOOLŽ name for its reputation and acknowledged level of integrity.

I've been informed that if I put DURACOOLŽ in my AC system, that it will void the compressor warranty.
Many compressor manufacturers claim that they will void a warranty if there is any product other than R12 or R134a installed in the system. We can only speculate as to why this statement has been made, with all the benefits over the R134a product. This statement is biased and demonstrates a strong allegiance between the OEMs and the compressor manufacturers - such is business these days. These statements are made despite the fact that the DURACOOLŽ product is less corrosive and has been repeatedly tested and proven to NOT harm any portion of the air conditioning system.

Although the compressor companies have made this statement it is virtually untrue. Additionally, compressor manufacturers freely admit that their business is fully aware that DURACOOLŽ cannot harm the system. Compressor manufacturers also freely admit that they do not return compressors when DURACOOLŽ is installed, although their printed warranty states otherwise.

Are the DURACOOLŽ products guaranteed?
Yes. DURACOOLŽ LIMITED guarantees that the DURACOOLŽ products will perform as an efficient refrigerant, and will not harm any air conditioning or refrigeration components and equipment.

Where is DURACOOLŽ Manufactured?
The DURACOOLŽ product is manufactured by DURACOOLŽ LIMITED. DURACOOLŽ is a company incorporated and operating in Alberta, Canada. DURACOOLŽ has made Quality Control the over-riding goal, and offer comprehensive technical and back up service. The company is built on integrity and professionalism, and their distributors and employees reflect this in their work ethics and honesty.

Is DURACOOLŽ all-natural?
Yes, DURACOOLŽ is absolutely all natural and organic. All components and additives are also natural and organic and the blends are fully "condensable" which means that they condense within the AC system.

Are hydrocarbons used in other areas of the world?
Overall, the experiences in Europe with ozone depletion and global warming have facilitated the need for government and industry to recognize and deal with the ever-growing environmental issues that face the planet. This has essentially galvanized many world leaders and governments to swing in behind the trend to hydrocarbon technology.

Overseas, there have been over 8 million domestic refrigerators and freezers manufactured out of Germany over the last few years alone, using hydrocarbon refrigerant.

Europe has adopted a new Standard (EN-378) that recognizes the use of hydrocarbons. The Danish government has embraced the use and development of hydrocarbons and applications. German technology is leading the world in applications of hydrocarbon technology in domestic refrigeration.

Most countries have embraced the commitment of the Kyoto agreement to phase out HFCs, which includes the R134a product, and all SNAP approved products. Most countries have recognized that the only alternative is hydrocarbons.

Have there been many automobiles converted to Hydrocarbons? What do you base your conversion estimates on?
In Canada and the United States it is estimated that there have already been approximately 5.5 million conversions to hydrocarbon refrigerants within automobiles. These estimates have been based solely on the sales figures for hydrocarbon refrigerant sales (since 1990) and the average system installation charge.

Does DURACOOL 12aŽ contain an additive?
Yes. It is a patented special mineral-based additive that we import especially for our manufacturing process. The additive is a hydrocarbon friction fighter, and a lubricant that enhances performance and safety to both DURACOOL 12aŽ and the equipment that it operates in.

Are there major differences between the DURACOOL 12aŽ product and the HFC R134a product?

Yes, incredibly so! This chart clearly illustrates the differences:

Non Global Warming (GWP negligible) Global Warming (GWP of 3200 on Greenpeace calculations and publications)
Both products non-ozone depleating
Non Toxic
  • Animal testing has indicated that with repeated exposure:
    • Benign testicular tumors may develop
    • Postmortem will indicate increased organ weights
  • Human testing has indicated that with repeated and/or high concentration single exposure humans may experience any of the following:
    • Reduced oxygen intake
    • Temporary alteration of heart's electrical activity
    • Irregular pulse / palpitations
    • Inadequate circulation
    • Heart irregularities
    • Tremors and other central nervous system symptoms
    • Unconsciousness or death
  • Thermal decomposition (exposure to open flame, glowing metal surface) forms "hazardous" hydrofluoric acid and possibly carbonyl fluoride (both of which can cause severe central nervous system reactions)
Compatible with both mineral and synthetic oils, including PAG and ester oils. Not compatible with mineral oils. Need Ester and PAG oils. Ester oils are very hydroscopic. PAG oils are subject to toxic registration in certain states/regions.
Non corrosive Highly Corrosive
Pressure "high side" of MVACS approx. 150 psi Pressure "high side" on MVACS approx. 300 psi
Energy efficient compared to CFC R-12 Not energy efficient compared to CFC R-12