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πŸ”₯ permatex 81878 ultra copper rtv silicone gasket maker - 3 oz. tube | maximum temperature resistant logo

πŸ”₯ Permatex 81878 Ultra Copper RTV Silicone Gasket Maker - 3 oz. Tube | Maximum Temperature Resistant Review

7

Β·

Very good

Revainrating 4.5 out of 5Β Β 
RatingΒ 
4.7
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Description of πŸ”₯ Permatex 81878 Ultra Copper RTV Silicone Gasket Maker - 3 oz. Tube | Maximum Temperature Resistant

Most advanced, high temp RTV silicone gasket available. Three times more oil resistant than conventional silicones; eight times more flexible than cut gaskets. Sensor-safe, low odor, and non-corrosive with superior adhesion. Temperature range -75F to 700F intermittent. Suggested Applications: Exhaust manifolds/headers, valve covers, oil pans, timing covers, water pumps, thermostat housings.

Reviews

Global ratings 7
  • 5
    5
  • 4
    2
  • 3
    0
  • 2
    0
  • 1
    0

Type of review

Revainrating 4 out of 5

The best I've found so far.

So I used this to seal my offset smoke leaks, it was pretty good and didn't shrink much but again I used a lot in case of shrinkage. It has a much higher heat resistance than the red silicone sealants used by everyone and the areas sealed with it paint over well. I sealed the joint between the chimney and the smokebox, sealed the nuts and bolts and also sealed the connection between the firebox and the smokebox, the only spot where it failed or the last spot was in the firebox lid where all the

Pros
  • Best
Cons
  • The packaging is ugly

Revainrating 5 out of 5

Really good for making boots for a 3D printer Heating element

I used this to make "silicone boots" for my Monoprice Maker Ultimate 3D printer and it seems to work pretty darn well for that , as opposed to from mixing my own weird silicone grout. Using a 1bigpig thing that was printed with black polylactide, I coated the inside of this thing with Costco dish soap and then squeezed just enough to fill maybe 2/5 to 1/2 of a container and then squeezed. A day later I received a usable silicone case for my printer. I definitely had enough to do, at least 6…

Pros
  • Lots of positive vibes
Cons
  • No power

Revainrating 5 out of 5

Do it right and it will work

I use Ultra Copper as a gasket, NOT in combination with a paper or rubber gasket. I do NOT use a pad in addition to Ultra Copper. DO NOT USE AS INSTRUCTED! I make sure ALL SURFACES are clean and free of grease. Then, using my finger, I apply a layer directly to the surface of the part to be attached (not the receiving surface). Let dry and apply another layer. After it is completely dry, I reattach the part to the receiving surface. As for me, I didn't have any drips, leaks or leaks afterwards.

Pros
  • Good thing
Cons
  • I don't remember but there was something

Revainrating 5 out of 5

Perfect fit for silicone 3D printer boots

This was my first time doing anything with silicone myself. I was a little scared but figured that a single component silicone hose couldn't be too harsh. I printed a mold for my Geeetech A20M OG hotend from Thingiverse and squeezed some of this paste onto it. After about a day (with some heating in between) the mold was ready. I've had the best results "painting" a small amount of dish soap around the shape with a brush. The cured product is flexible and has withstood many hours at 200-240Β°C…

Pros
  • Sturdy construction
Cons
  • Something different

Revainrating 4 out of 5

The best I've found so far.

so i used this to seal my offset smoke leaks it was pretty good and didn't shrink much but i used a lot in case of shrinkage. It has a much higher heat resistance than the red silicone sealants used by everyone and the areas sealed with it paint over well. I sealed the joint between the chimney and the smokebox, sealed the nuts and bolts and also sealed the connection between the firebox and the smokebox, the only spot where it failed or the last spot was in the firebox lid where all the heat…

Pros
  • good stuff
Cons
  • updates

Revainrating 5 out of 5

really good for making 3D printer heater shoes

I've used this to make "silicone shoes" for my Monoprice 3D printer and it seems to work pretty darn well for that, in contrast for mixing my own weird silicone grout. Using a 1bigpig thing that was printed with black polylactide, I coated the inside of this thing with Costco dish soap and then squeezed just enough to fill maybe 2/5 to 1/2 of a container and then squeezed. A day later I received a usable silicone sleeve for my printer. I definitely had enough to do, at least 6 before deciding…

Pros
  • Best in niche
Cons
  • Low repairability

Revainrating 5 out of 5

If you get it right it works

I use Ultra Copper as a gasket, NOT in combination with a paper or rubber gasket. I do NOT use a pad in addition to Ultra Copper. DO NOT USE AS INSTRUCTED! I make sure ALL SURFACES are clean and free of grease. Then, using my finger, I apply a layer directly to the surface of the part to be attached (not the receiving surface). Let dry and apply another layer. After it is completely dry, I reattach the part to the receiving surface. As for me, I didn't have any drips, leaks or leaks afterwards.

Pros
  • great product
Cons
  • Almost never