PERMATEX BLACK ADHESIVE SEALANT

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84C20HD

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Jun 28, 2023
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Location
MANAHAWKIN, NJ
First Name
CHARLIE
Truck Year
1984
Truck Model
C20
Engine Size
305
Hey fellas, I'm about to replace the intake manifold on my 1984 Chevy 350. All cleaned up and ready to go. I like to use Fel Pro gaskets, so I'll be installing their intake port gaskets, but not the little rubber piece for the front and rear bottom of the intake manifold. Last time I did this I used the Permatex Black Adhesive Sealant in those locations without issues (15 years on the block no leak ). I've now read the Permatex packaging and it says not for gasket use. Can I use this, if not what else that is black. Silicone is difficult to paint. Would anyone care to join in here. All answers welcomed. Thanks for your time, ...................Charlie
 

PrairieDrifter

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Location
North Dakota
First Name
Mason
Truck Year
84,79,77,76,70,48
Truck Model
Suburban k10, bonanza k10, k30, k20, c10, gmc 1/2ton
Engine Size
350, 350, 350, 350, 350, 350
My go to is permatex's the right stuff. They should have a black rtv gasket maker.
 

1STLS1

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Location
West Phoenix AZ
First Name
MIchael
Truck Year
1985
Truck Model
K10
Engine Size
350
A long time ago, one of my service calls was Permatex in Solon OH where they make and package all the different RTV colors and product. Employees there told me, "Ultra Black" was the best, not sure why but would think they would know.
 

84C20HD

Junior Member
Joined
Jun 28, 2023
Posts
15
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Location
MANAHAWKIN, NJ
First Name
CHARLIE
Truck Year
1984
Truck Model
C20
Engine Size
305
Thanks guys! There is an old song lyric "black is black", not true. After reading all of your post I went to one of my cabinets and found an almost exhausted tube of "ultra black." I bought this new tube looking at the color, and not how it is designed. Going to get the real mccoy Ultra Black tomorrow. Thank you all for your time, ..................................Charlie
 

idahovette

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Location
Weiser Idaho
First Name
Perry
Truck Year
1975-1979
Truck Model
K20-K10
Engine Size
350
Didja get your baby back?????
 

WebMonkey

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Location
Missouri Ozarks
First Name
Chris
Truck Year
1985
Truck Model
K20
Engine Size
350
it's grey it's grey

what can i do?
 
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84C20HD

Junior Member
Joined
Jun 28, 2023
Posts
15
Reaction score
9
Location
MANAHAWKIN, NJ
First Name
CHARLIE
Truck Year
1984
Truck Model
C20
Engine Size
305
Well I haven't gotten my baby back, yet, but I'll have her running in a day or two. It's grey it's grey , what can I do? I was feelin' ULTRA BLUE , but I'll buy the black as you can't paint silicone. Thanks again for your help.
 
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