Eastwood Internal Frame Coating, Internal Longtitudinal Coating Options

[Highland]

Just wondering if anyone has used Eastwood's Internal Frame Coating with the long tube to spray inside the longtitudinals with the heater tubes still inside.

I'm just wondering how effective it will be with the heater tubes in the way. Eastwood says it won't damage the heater tubes, but I'm not sure of that if they are made of thick paper.

Opinions please.

[Matty900]

I used it in the tunnel but not in the longs. The hardest part is getting any debris and surface rust out first. I used long wire brushes, a vacuum and compressed air with a long wand attachment. I then did an acid spray with a sprayer and wand to convert any rust and then finally used the Eastwood. Not very fun work but at least there were plenty of access points and not much else in the tunnel other than the guide tubes and tabs. With a hose taking up most of the space in the longs, .
The spray that comes out does really go pretty far. I had covered up all of the openings in the tunnel when I sprayed it in my car but there apparently was a little daylight and when I went but it, it really shout out. So I have to think you will be able to get most of it in a few passes.