Was looking for red RTV when I came across this. Seems like a decent deal.
JB Weld - Black RTV 85g $10.21 + Delivery ($0 with Prime/ $39 Spend) @ Amazon AU
![](https://files.ozbargain.com.au/g/38.jpg)
Last edited 15/07/2022 - 18:19 by 1 other user
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It's a silicone product
Seems like a good price.
I assume this is the exact same product for $23 at repco and supercheapauto, with just the packaging changed?
www.supercheapauto.com.au/p/jb-weld-jb-weld-ultimate-black-r…
I googled same thing.
Bought 1 using that assumption too.
I'm seeing$20.5
Scroll down and bit and select other sellers on Amazon.
How would this go on a plastic mower fuel tank crack, do you think?
An epoxy would be hardier.
Masters used to stock their cold weld epoxy stuff cheaply (i still have some) it sets rock hard.
Try melting with a soldering iron, after you drain and flush the tank obviously.
So what exactly is the difference between red and black?
If use for high-heat application, get the red one.
So what’s the point of the black one? I’m sure I bought the red at the same price recently.
Red is high temperature.
Back to normal price
good for stainless steel repair?