Seal Swell in HM

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211
Location
Sta Catarina, Br
Have you ever smelled the HM oil? They have seal swell to mostly differentiate it from normal engine oils. But it smell like Brake Fluid DOT 4! So I ask: Is the seal swell the same additive that goes in brake fluids DOT4 ? What is it? Can one mix them? I don't think so.
 

MolaKule

Staff member
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Iowegia - USA
What oils are you talking about? A similar discussion is going on here: HM OILS Each type of lubricant has a different PI (additive) package and base oils. Never add brake fluid to motor oil.
 
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Rosetta

Thread starter
Messages
211
Location
Sta Catarina, Br
Trying to discover the additive to seal swell. I know brake fluids have it in them. The smell is familiar. Never mix engine oil and brake fluids, of course. would a seal swell work in a velumoid gasket? or just synthetic rubbers like bunna and stuff?
 
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2,191
Location
VA
Yes. If you're nose can identify specific chemical compounds and you feel you have identified said compound in an 'additive' such as brake fluid, then I say go for it.
 

Rosetta

Thread starter
Messages
211
Location
Sta Catarina, Br
Originally Posted By: 147_Grain
ATP-205 is basically a pure seal swelling additive.
Oh yeah, the resealer, sold at amazon ... tere should be pure swellers.
 

MolaKule

Staff member
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Iowegia - USA
Quote:
Trying to discover the additive to seal swell.
WHY? For engine oils and ATFs: tris (C8-C24 hydrocarbyl) phosphite Bis(2-ethylhexyl) phosphoric acid Dihexyl Phthalate and the azelamides such as: N,N'-dimethyl-N,N'-dihexylazelamide, N,N'-dimethyl-N,N'-di2-ethylhexylazelamide, N,N'-dimethyl-N,N'-di-2-ethylhexylsebacamide beta-thiopropionitrile di(2-ethylhexyl)-adipate For brake fluids: IP You can't go by odor to determine chemical makeup. Quit sniffing that stuff or your brain will fall out! LOL
 
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MolaKule

Staff member
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Iowegia - USA
Originally Posted By: Rosetta
... would a seal swell work in a velumoid gasket? or just synthetic rubbers like bunna and stuff?
Seal conditioners are for conditioning elastomer "seals" such as the nitriles, not gaskets.
 
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28,123
Location
Regina, Saskatchewan, Canada
Originally Posted By: MolaKule
Quit sniffing that stuff or your brain will fall out!
I made the mistake of sniffing anhydrous ammonia in an organic chemistry lab once. I was lucky; I didn't hit the floor. wink
 
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