Permatex Ultra Black retains high flexibility and oil resistant properties through use of a patented adhesion system. Ultra Black is sensor safe, low odor, and non-corrosive with resistance to oil, shop fluids, and vibration. This sensor-safe, low odor, non-corrosive formula meets performance specifications of OE silicone gaskets and can be used on high flexibility and high oil resistant applications such as timing covers, transmission pans and oil pans.
Product Features:
High flexibility and oil resistance
Sensor-safe, non-corrosive formula
Resist to powertrain fluids
Eliminates the need for pre-formed, pre-cut gaskets
OEM specified and approved for dealership warranty requirements
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4.57 out of 5
102 Customer Reviews
82%of respondents would recommend this to a friend
Ratings Distribution
5 Stars
77
4 Stars
16
3 Stars
4
2 Stars
0
1 Star
5
Pros
6
Easy To Use
5
Reliable
3
Can Withstand Use
3
Compact
Cons
1
Small tube
1
Minute Quantity
1
Pricey / Poor Value
Best Uses
3
Home Garage
2
Automotive Repair Shop
Car/Motorcycle Describe yourself
3
Auto Enthusiast
2
Casual Driver
2
Mechanic
1
Mechanically challenged
1
Truck Enthusiast
Most Liked Positive Review
Works as expected on a ford differencial
Little tube seals up a ford Differencial, but at $2 plus the price is high for what you get.
Most Liked Negative Review
Good product, bad value
RTV ultra black is very good stuff, probably the best you can buy - but considering the pricetag, you may be better off getting the larger size(0.5oz vs 3.35oz). I had a very small repair and it was perfect for the job. If you need two you already paid more than the large size. Problem is the larger size dries out if you don't have another job within a year or so.
Reviewed by 102 Customers
Works great
Submitted 2 months ago
Did exactly what it was supposed to do
Bottom Line Yes, I would recommend to a friend
Great
Submitted 2 months ago
Did it job perfect
Bottom Line Yes, I would recommend to a friend
I would buy it again
Submitted 5 months ago
Great for my application
Bottom Line Yes, I would recommend to a friend
I would buy this again
Submitted 5 months ago
I applied this product to aid in sealing a transmission gasket between the pan and the housing. I let the product cure for 5 days (required is 24hrs) since the temperature was below 50deg F at night. So far, no leaks after 5 days with 150 miles driven.
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Can it be used on a stripped leaking oil pan plug.
Verified Reply - Solomon
Hi Gary, I'm glad to help you! This Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker (Part # 22072) can be used on high flexibility and high oil resistant applications such as timing covers, transmission pans and oil pans.
Can i use permatex spray sealer over ultra black gasket maker
Verified Reply - Steve
No Randy. That will fail. You must take everything apart and reapply the Ultra Black.
when cured is it non tacky?
Verified Reply - Solomo
No, Jim! This Permatex Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker - Part # 22072 dries in 1 hour, and fully cures in 24 hours, at 70˚F – 50% relative humidity. Allow more time in cold weather.
Can you just use this only to make a gasket without actually using a gasket plus this product
Product Owner - bigbowtie3
Yes, it is a gasket maker. It helps for surfaces to be flat. Surfaces need to be cleaned with brake parts cleaner so that they are oil free. Works great!
Sent from my iPhone
Product Owner - hakeemr
Yes many people have used this product alone as a gasket without issues. Be
sure to use enough to form a seal though. I used it in addition to an
actual gasket since most gaskets are dirt cheap (On amazon at least).
Product Owner - the_ponderosa
Yes you can. I used the RTV gasket maker on oil pan, rear end, water pump and thermostat.
Email account
Product Owner - netasnake06
Yes you can its great for rear diff and transmission gaskets
Sent from my iPhone
Is Ultra Black the best product to coat the paper gasket between the transmission and the transfer case on a 1948 CJ2A Willys?
Product Owner - johnluv0165
No. When using a paper or cork gasket, use the permatex grey sealant. Use the black rtv either by itself or with a rubber gasket for best results.
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Ultra Black Maximum Oil Resistance RTV Silicone Gasket
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Product Owner - josborne_39
It will work perfectly.Gas is about the only thing it doesn't like.
Product Owner - shreve66
I used it on my differential. No problems so far.
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