• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!

    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

Radiator paint question

tdskip

Yoda
Country flag
Offline
Anything special here - I know Eastwood sells paint specificailly for use on radiators but I'm not sure if that is any different or better than say this;

21FPPlLlfdL._SL160_AA160_.jpg
 
Radiators don't get that hot...hopefully less then about 200 deg. Most rattle can paints should handle that, I don't think you even need any high temp paint. Eastwood sells a lot of good products, but at fairly high prices. I think this is one of those times that any decent paint will do. Just look on the label to how high of a temp it will take.
 
This issue may not be just temp but also the thickness or heat conductivity of the paint.

I believe a heavy coat of paint on a radiator can be detrimental to cooling.

There are paints that are almost as thin as ink (like the black from a Magic Marker). Don't know if that is a characteristic of the Eastwood paint but with a phone call you could probably find out.

TR rads are challenged in the best of times so anything that reduces their performance is to be avoided.
 
I have some of the Eastwood radiator paint but haven't used it yet. It's selling point <span style="font-style: italic">is</span> it's thinness and temperature conductivity. I believe that there are other brands lurking on the shelves of Advance/Pep Boys/et al that will work as well, however.

You can easily and probably will seriously effect the cooling capacity of a radiator painting it with normal spray paints. There's a thread on the AACA forum right now by a guy who painted his 1930s Chrysler rad with Imron (becaue it looked nice), and now he can't drive it for more than 15 minutes.

The Krylon can pictured is for a steam heat radiator. It's main selling point is good thermal adhesion and elasticity. You'd have to ask them what it's thermal conductivity is like.
 
I used Eastwood's radiator paint. It's thinner than "regular paint" and provides a nice coating. I avoided overspraying the fins nonetheless. Just enough to coat. Never use engine enamel as it has very high solids and too thick for this application.
 
Back
Top