I am looking for something to coat my airbox with, inside mainly, but maybe outside as well. This is a fiberglass airbox that touches the engine at the throttle body flanges(well, really it never touches metal, just gaskets) and sits on top of the engine. The only radiant heat it sees is what comes off the valve covers(composite valve covers) and general engine bay heat. Plasti-Dip is only heat resistant to 200 deg F, and while that may be acceptable, I would like a little more.
I'm not sure, but what's truck bed liner good to after setting?
Quite a bit I am sure...but every time I have seen it, the surface has been rather rough, which is why I dissmissed it. Its just an airbox, but I would like to avoid adding any unwanted turbulence.
I would look at some of the gold heat reflective tapes and cover the outside with that. Maybe look at ceramic paints? I don't know if they would work on fiberglass.
Yah, "rubberized" and "high temperature" are two descriptors that don't belong together.
Man plasty dip is the jam you should get that stuff
dean1484 said:I would look at some of the gold heat reflective tapes and cover the outside with that. Maybe look at ceramic paints? I don't know if they would work on fiberglass.
I plan to do that to the bottom of the box(probably not so much the sides where it is visible).
The main appeal behind rubberized coatings is that it has the secondary effect of sealing...which is useful looking to the future for a low boost setup(10psi or less) since fiberglass is so bad making 90 degree turns, anywhere in the airbox like that is prone to some stupid pinhole leak:
Though if I am being honest, I will probably have a harder time figuring out a way to seal the top of the box to the bottom(right now the plan is to install some angle iron along the top edge for a good sealable flange, securing it to the sides with hardware and 3M Marine sealant)
Does it need to be rubberized? I've had good success with VHT's "Epoxy" spray paint. Very good coverage and thick enough to hide small imperfections. The only downside I can think of is it only comes in gloss or satin black. I've used it to paint the airbox and driveshaft on my RX-7 and both are holding up great against heat and the environment.
In reply to infernosg :
The rubberized portion is really just a lazy way to make sure there are no small boost leaks in the bottom portion of the box. I am pretty sure there are some high temp rubberized coatings out there meant for industrial use.
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