Triumphrat

Addict · 10-22-2009, 09:14 AM

The time has come to respray the engine, frame and wheels of my trusty Daytona 12.

I'm looking to use aerosol-based coatings and wondered if a standard Hi-Build Filler Primer and Satin Black combination would suffice, considering the mixture of aluminium & steel parts... and the temperature issues associated with the engine block/exhaust.

Can anyone advise?

Thanks in advance... Addict

BombFactory · 10-23-2009, 06:02 PM

I'm not sure where you are located, but I have nothing but good things to say about Rustoleum's "Painter's Touch" line of spray paint. The satin black isn't too glossy or too flat, and it stands up well to the elements and chemicals. It works well on chassis and suspension parts. You can use Rustoleum's brand name line of primer or the "Painter's Touch"; either one is compatable and works well. I don't recommend Rustoleum's name brand line of spray paints, as they take forever to dry (I'm talking 8 hours just to tack off) and I have never been impressed with the quality and durability.

For the engine, I would not use standard enamel paint, as it will fade quickly due to the heat. I would use a high-temp engine paint. I like Dupli-color engine enamels, but I'm not sure if they make a satin line. Someone on here might know of a good satin black barbecue/heater paint?

Flying Custard · 10-24-2009, 04:47 PM

Are you talking spray cans or gun spraying? Rattle can hi-build primer is not much cop... cracks up and I doubt it would take much heat.
2k hi-build primer would fare better, I've sprayed silencers (mufflers) with it before.
Did mine with 2k epoxy primer, and part in 2k black and some in barbecue rattle can black... both have been fine. Done another engine in epoxy then colour too.
Etch primer would be worth using first, if you're talking cans, or are talking guns but can't do two-pack because of safety etc. That'll give a good bite into the ally.

BombFactory · 10-24-2009, 06:03 PM

For what it's worth, I've never had issues with a quality spray can primer cracking or peeling if the surface is properly prepared and the coats are not put on overly thick. I've had good results on parts that remain cool and parts that are closer to heat sources (e.g. motor mounts, steering boxes, transmissions, cross-members etc).

Addict · 10-25-2009, 03:47 AM

Thanks for the info guys... I've spoken with a paint factors in Birmingham UK and they sugggest VHT (Hi Temp) paint for the engine block and exhaust parts.

Get this, they're saying that this does NOT require the use of primer or undercoat and will key to the ali engine parts fine (even after stripping back to bare metal)! Is this right?

Bit of a minefield this paint lark, innit?

Cheers - Addict.

BombFactory · 10-25-2009, 04:09 AM

As far as I know, there is no such thing as a hi-temp primer. The hi-temp paints I've used have no issues adhering to bare metal, so long as it is clean from oil and dirt. I suggest shooting a test piece before shooting the engine, as many hi-temp blacks are flat and not satin.