Thermagic ZF-EX paste is real and the same paste as Thermalright TFXHello.
It says MX4 would be "cheap". Still, it is a high price per pound or kg.
Are there also acceptable "no-name" pastes?
I found tests in which the "HY" pastes also performed well. HY810 even better than HY880. And equivalent to "GD900".
Are ALL MX4's on Ali fakes? Are all GD900s on Ali fakes?
Are there any larger containers of thermal paste on Ali/eBay that are acceptable and inexpensive?
Possibly 20, 30, 40, 50 grams, up to ~ 1.5 ounces for "a few dollars".
Even an ounce for $ 5, 6, 7 is OK if the paste is acceptable.
A particularly good budget product can also cost more.
Both on aliexpress are fine.
SYY paste is extremely good. They have their own factory in China.
It seems to be of the same base materials as TFX/ZF-EX, but with different viscosity. It's much easier to spread than TFX/ZF-EX while still being of a high thickness. Just not oppressively so like TFX.
And unlike TFX, you get a lot more paste for the money.