Temperature resistance of metal hose in cooling system

10

Asked by cbbv Feb 12, 2022 at 01:48 PM about the 1990 Opel Corsa A

Question type: General

Hi.
There is a metal hose in the car's cooling system.It is located close to
the engine and it is connected to other four rubber hoses.(see attached photo).This metal hose is originally coated with a black color paint.I would like to know what is the maximum temperature that this black coated paint can resist?Thanks.

6 Answers

2,920

It can handle any heat that is associated with the engine and cooling system. Is yours leaking? Might have failed due to age and rust. For a 32 year old part, it is due to be replaced.

1 people found this helpful.
10

Thank,VRoom,for your response. My issue is not necessary related to leakage. I am trying to find out,if the coating paint can handle continuous temp. of at least 200°C? I assume that it can handle 126°C(boiling temp. of coolant), but i am not sure how high the temp. can get around this part. Does the air temp.around this hose reach 200°C or more? Thanks.

10

Thanks for your answer,Ed. Yes,my intention is to paint the metal hose,but only on a few spots in the metal hose where the paint peeled-off,while i will leave the rest of the original paint as it is,since it is a new part(i have just bought it)and the paint is good and rigid(besides the peeling spots). I have already bought a paint for high temp. for this task,but since i need to put the metal hose(after painting)in the oven at 200°C,i am trying to find-out if the original paint can resist to this temp. Does it resist to the 200°C?

10

Thanks Ed. You advise to make a test(which i am trying to avoid,so i won't ruin the original paint if it will fail),but you also said that you are sure the coating will resist that temp.May you clarify this,please?All of my intention was to avoid any test that might ruin the original paint.

10

Hi Ed. I have,practically,done nothing yet and all my effort is only to get a simple but RELIABLE answer(followed with any reference),if the paint is resist to 200°C That's all.Nothing more. Read all the answers that i got and tell me if i got a definite answer. I got several answers and i appreciate any response(it's not taken for granted),but did i get a definite answer?

10

Okay,many thanks for all the responses, though i still don't know if the paint will resist,for sure,the 200°C. I assume that no one in this forum is expert in this area. Thanks anyway.

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