Throttle body cleaner / Carburetor cleaner

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Whats the difference between a Throttle body cleaner vs. a Carburetor cleaner? I didnt find anything on a search of the site.
 
I believe throttle body cleaner is less likely to harm the plastics used for sealing the throttle plate in some throttle bodys.
 
most carb cleaners are not O2 sensor safe, and may be to strong (solvency) that it may melt certain throttle body's coating.

most throttle body cleaners that I'm aware of (esp. CRC) are both O2 sensor safe and does not strip coating inside the throttle body.

Q.
 
From their MSDS:
CRC throttle body and Carburator cleaner:
Acetone 75 - 85%
Heptane isomers 4 – 8%
Toluene 2 – 5%
Diacetone alcohol < 1%
Carbon dioxide 5 - 15%

CRC Clean-r-carb
Acetone 20 - 30%
Toluene 35 - 45%
Methanol 25 - 35%
Carbon dioxide 5 – 10%

Valvoline professional throttle body cleaner:
ACETONE >=70- XYLENE >=5- METHANOL >=5- CARBON DIOXIDE >=5- ETHYL BENZENE >=1.5-
Valvoline brake parts cleaner:
ACETONE >=70- XYLENE >=5- METHANOL >=5- CARBON DIOXIDE >=5- ETHYL BENZENE >=1.5-
3M carburetor cleaner:
TOLUENE 35 - 45%
ACETONE 20 - 30%
METHYL ALCOHOL 10 - 15%
PROPANE 10 - 15%
DIACETONE ALCOHOL 5 - 10%
 
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