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Are there any requirements regarding low-temperature performance for paints used in chemical plants in the Northeast region?
Right, otherwise it would freeze at low temperatures, just like diesel – 0-grade to 10-grade diesel isn’t sold in those areas during winter
There are temperature requirements for painting – it generally should be no lower than 5 degrees Celsius. My question is: do these structures that are at sub-zero temperatures have the ability to resist low temperatures in terms of the paint applied to them? ?
It means, after applying it, is it resistant to freezing?
Yes, that’s exactly what it means. For example, diesel grade zero is suitable for areas south of the Huai River, while diesel in the northeast has a negative rating
Well, I really don’t know; it’s only -5°C. It’s hard to estimate. . .
Paint product testing includes experiments on low-temperature stability. The temperature is reduced to minus 50 degrees Celsius within a few minutes, maintained at that level for one hour, then raised to plus 50 to 60 degrees Celsius, and again reduced to minus 50 degrees Celsius – this cycle is repeated about a dozen times. Visual inspections are carried out to ensure there is no cracking, peeling of paint, or wrinkling. If the application environment is special, it is possible to make requests to the paint manufacturer; low temperatures are quite common.
I’ve read a lot of information on paint, but none of it addresses this issue
I didn’t understand it either before; when it came to reviewing container certifications, I dealt with low-temperature buried containers, so I learned a bit more about aspects related to low temperatures. It’s rare to encounter this situation under normal circumstances, so it’s normal as well.
What components are related to low-temperature resistance? ? ?
Epoxy paint should work fine for this purpose. Whether cracking or peeling occurs depends on the properties of the surface to be painted; materials that deform, are subject to temperature changes, or have a high coefficient of expansion are likely to experience cracking and peeling.