Can you mix 12a and 134A?

You should NEVER mix refrigerants or mix incompatible oils. Putting a 12a refrigerant into a system that had R134a, without a complete and thorough flush of ALL components, and purge of the flush chemical, is called CONTAMINATION.
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Is 12a compatible with 134a?

RED TEK 12a requires no significant redesigning of the refrigeration system because it is compatible with R134a, R12, metal components, compressor motor materials, mineral, and synthetic (Ester and PAG) lubricants, seals, gaskets, hoses, compressors, and O-rings.
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What happens if you mix 12a with 134a?

Mixing R12 and R-134a refrigerants is illegal, and even if you previously bleed out the R12, the system has to be adjusted to use R-134a, or it will cause leaks, copper corrosion, and lack the lubrication required for optimal operation.
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Is 12a same as R134a?

HC-12a provides better cooling than an R-12 system retrofitted to R-134a, with much greater energy efficiency as well. Unlike R-134a, HC-12a is completely compatible with the hoses and oils used in R-12 systems, making the conversion much easier to accomplish. HC-12a is also patent-free due to its non-synthetic nature.
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What refrigerant can be mixed with R134a?

There are three refrigerants that can be used to replace R-134a: R-1234yf, R-152a, and R-744.
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Never Use This on Your Car's AC System



What happens if you mix AC refrigerants?

What Happens to Your AC System if You Mix Refrigerants? Mixed refrigerants can cause increased system pressures and temperatures changing them for the worse. This can result in ineffective compressor cooling and possible compressor damage, ineffective cooling, and metering device malfunction.
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Can you mix car AC refrigerants?

In short: no, it's not a good idea to mix different automotive air conditioning refrigerants. Your vehicle's HVAC system is designed for a specific kind of refrigerant, so adding another kind may cause the system to become damaged.
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Can you use R12a in a R12 system?

Adding R12a refrigerant to the R12 system:

It's basically the same procedure as adding R12 except you must screw on the R12-to-R12a quick-connect adapter fitting pictured below (included in the kit) to the LOW suction service port first. The adapter fitting has it's own Schrader valve internally, so no gas will escape.
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Can you mix R290 with R134a?

Therefore, by mixing these two hydrocarbons in the ratio of 54.8% (R600a) and 45.2% (R290) the boiling point of the HC can be made equal to R134a.
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Are R12 and R134 fittings different?

R12 has threaded fittings (left) and R134a uses quick disconnect fittings (right). However, if you want to go the extra mile in preserving your car's originality and value (and you have additional money to spend) there a plenty of reasons to avoid doing this conversion.
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What happens if you put the wrong refrigerant in your car?

You cannot mix refrigerant types, and putting the wrong refrigerant in your car will cause damage to the air conditioning system! If you're not sure which kind of refrigerant your vehicle takes, DIY A/C charging may not be for you.
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Is r12a flammable?

Emergency Overview.................................... Extremely flammable. Container is under pressure. Container may explode if heated.
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Is R12 Freon?

A lot of people have heard of Freon. The stuff your dad or grandfather put into his car, so the air conditioning worked. The stuff that is supposed to be bad for the ozone layer. But did you know that Freon is just a brand name for a chemical gas generically called R12 (CFC-12)?
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Is R134a Green?

Registered. Yes, the factory oil has a green dye - it is for leak detection.
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What Freon is compatible with R12?

The best replacement for R12 is considered to be R-134a. The chemical name of R134a is tetrafluoroethane and it chemical formula is CF3CH2F. It is a hydrofluorocarbon (HFC) and has zero ozone depletion causing potential and very low greenhouse effect.
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What is R12 compatible?

There are three replacement refrigerant options for R12 systems: R134a, R401a, R401b. R134a is regarded, by manufacturers and adherents to the Montreal Protocols alike, as the best replacement refrigerant.
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Does 12a work in R12?

RED TEK 12a requires no significant redesigning of the refrigeration system because it is compatible with R134a, R12, metal components, compressor motor materials, mineral, and synthetic (Ester and PAG) lubricants, seals, gaskets, hoses, compressors, and O-rings.
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What is the ratio of R12 to R134a?

The conversion is determined by multiplying the R12 charge value by . 75 (R12 charge x . 75 = R134a charge).
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Can you still buy R12 refrigerant?

Anyone with the required EPA R-12 certification still can buy the 1-pound cans at auto-parts stores, but the cans are kept in the back and guarded like gold.
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Is R12 heavier than R134a?

The volume of r134a refrigerant is lighter than the same amount r12 refrigerant. This not only is important to know for commercial refrigeration units, but it also is vital when making repairs on HVAC equipment and even cars.
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When two or more refrigerants are mixed?

When two or more refrigerants are mixed together it forms an azeotropic mixture. Azeotropic refrigerant is a mixture of two or more components that boils at the same temperature.
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Can you mix synthetic refrigerant with regular?

A: No can do. The system will have to be evacuated properly, to remove any oil and any water or humidity that got in. Then you can add the correct amount of oil and refrigerant, in this case R134a. Modern a/c systems don't use very much refrigerant, and they're pretty intolerant of being overcharged.
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Why R134a is not used in AC?

R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak. Bottom line, R134a simply doesn't cool as well as R12. In addition, there was the lubricant issue. Because A/C compressors have moving parts, they require oil.
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Can you mix refrigerant brands?

Carter Volkswagen Auto Care FAQs: Can You Mix Automotive A/C Refrigerant Types? In short, the answer is, "No!" Automotive refrigerants are volatile compounds that can have a negative effect on the environment. Combining them can have adverse effects, and cause damage to your car's A/C system.
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