Kreem Blue

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Hi
I am about to buy a pair of stainless 850 front pipes for my Roadster. I need help on how to use Kreem Blue to stop the pipes from Bluing.

ELLIS
 
Description: An internal exhaust pipe coating that shields against pipe blueing on properly tuned engines – 16 fl. oz. (1 pint)

Blue Shield is an internal exhaust pipe sealant that is designed to prevent ‘pipe blueing’ on properly tuned motors. Since ‘pipe blueing’ is cause by excessive heat it may still occur if an engine is not in proper tune of if the carburetor is jetted too lean. Slight blueing or discoloration may occur on pipes with extremely sharp bends coming from heads. Application: NOTE: Read instructions thoroughly before applying Blue Shield. For use on new exhaust pipes only. Inside of pipes must be free from dirt and residue. Clean with alcohol or solvent. PROVIDE ADEQUATE VENTILATION DURING USE. A DISPOSABLE FACE DUST MASK IS RECOMMENDED. Important: If coating a pipe with muffler, special care must be taken to ensure that Blue Shield does not enter muffler baffle. Blue Shield is designed for use on new pipes only. Inside of pipes must be clean and free from oil. If dirt and oil are present, clean with alcohol or solvent. Do not use alcohol or solvent on pipes with fiberglass baffles.
1. Shake of stir coating cement well.
2. Cover one end of pipe with duct tape. (If coating pipes with muffler, cover muffler end first.)
3. Pour contents of bottle into open end of pipe. (If coating pipes with muffler, hold pipe at an adequate angle to ensure no Blue Shield enters the muffler baffle.)
4. Cover open end of pipe with duct tape and rotate until inside of pipe is evenly coated.
5. Remove tape and drain excess Blue Shield, collecting it for reuse. Hang pipe with filler end down for 1 hour. Air dry in warm, dry area of 6-12 hours, or oven dry at 150- 175 degrees for 1 hour.
6. Apply a second coat following the same steps.
7. Remove any excess Blue Shield on outside of pipe by knocking off with a blunt object.
8. Wash hands and clothing thoroughly after applying Blue Shield.
9. Install tail pipe assembly. NOTE: Generally discoloration of chrome tail pipes occurs in the first 1-2 feet of the pipe. A uniform, dual coating in this area will minimize the potential of chrome discoloration under normal vehicle operating conditions.
 
Hi
I am about to buy a pair of stainless 850 front pipes for my Roadster. I need help on how to use Kreem Blue to stop the pipes from Bluing.

ELLIS
I just re-read this. Stainless will discolor at lower temps than chrome. Unless it is a parade ridden trailer queen, the coating won't stop it.
An entire lifetime in the metal trades.
Good luck.

JMWO
 
Hi
I am about to buy a pair of stainless 850 front pipes for my Roadster. I need help on how to use Kreem Blue to stop the pipes from Bluing.

ELLIS
Stainless doesn't "blue".
It just goes a straw colour, which is easily removed with metal polish (unlike chrome which has gone blue)
Since you have stainless I wouldn't bother.
Cheers
 
Thanks for all your replies.
I will only buy these new pipes once so for the sake of £24 UK I will buy some Kreem and coat them. I take on board that it will not work but once run I can no longer try the Kreem.

ELLIS
 
I just re-read this. Stainless will discolor at lower temps than chrome. Unless it is a parade ridden trailer queen, the coating won't stop it.
An entire lifetime in the metal trades.
Good luck.

JMWO
Been there done that to try and stop the stainless bluing/bronzing process including removing all the emission control plumbing from a efi cycle in the hope to reduce it ..hence why I rather have chrome as the discoloration is only close to the fire ...instead of all the way to the end of the muffler..
 
Last edited:
Stainless doesn't "blue".
It just goes a straw colour, which is easily removed with metal polish (unlike chrome which has gone blue)
Since you have stainless I wouldn't bother.
Cheers
If you get stainless hot enough to cherry red from extreme heat/thrashing it does actually go blue once it cools down ...I appreciate polishing will remove it and I think if you go to stainless headers you may as well go all the way for uniform colouring :)
 
Has anyone tried this KreemBlue on a set of new chrome header pipes?
Thanks,
Mike
 
Hi
I am about to buy a pair of stainless 850 front pipes for my Roadster. I need help on how to use Kreem Blue to stop the pipes from Bluing.

ELLIS
A practice from back in the day was to wrap a few turns of copper wire (strip out a piece of flax) around the header pipe as close to the head as possible.
I suggested this to a friend when he got a new BMW GS. He placed the wire an inch or two from the head on one pipe and approx 3 inches on the other. The bluing stopped at the copper wire on each pipe. Copper wire turns black. Why does it work ????? but it appears to be effective.
 
I can attest that stainless will blue, as witnessed on my modern Bonneville thanks to the secondary air injection system adding oxygen to the exhaust gases before leaving the head. Subsequent BluJob treatment, followed by removal of SAI, pipes stay non-blue after 70k KM's. Straw colour only.
 
"Has anyone tried this KreemBlue on a set of new chrome header pipes?
Thanks,
Mike"

I used this product on a new set of chrome header pipes on my '70 Triumph Tiger 15 years ago. I am happy to report that, over this period of time, the only discoloration was a gradual accumulation of faint yellow/gold at the first sharp bend out of the engine head which nicely coordinated with the
tank/fender color of Spring Gold.
 
Kreem Blue

Thanks for all the great suggestions on front pipes bluing. After taking it all on board I have decided to go for AN chrome downpipes and use Kreem Blue. Didn't fancy polishing a Stainless system every time they turn grey. So after Xmas I will be putting my order in and fingers crossed they will last for a few more years looking nice and shiny.

Merry Christmas everyone.

ELLIS
 
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