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spray painting with a brush

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spray painting with a brush

Post by hob on Tue Jul 03 2012, 20:13

spray painting with a brush.......................ever decided to paint an engine with spray cans, then found masking some parts imposable ?????? ok so follow the instructions on the can for shaking etc take the cap off the can and hold can about 2 to 3 inches from the cap then spray the paint into the cap in small amounts and apply with a small brush ..............quickly as it will dry out in short time.............it will be very thin so more than one coat will be needed ....................hold can upside down and give short burst to clear nozzle between sprays brushes should clean in white spirit.

most spray cans are not heat resistant so consider painting bits like the barrel, head, manifold with heat resistant black paint ..............readily available at most DIY outlets

can get you out of a muddle ......................

Neville

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Re: spray painting with a brush

Post by pauldg on Tue Jul 03 2012, 21:38

hob wrote:
most spray cans are not heat resistant so consider painting bits like the barrel, head, manifold with heat resistant black paint ..............readily available at most DIY outlets

can get you out of a muddle ......................

Neville

Just to add, you're not restricted to black. XHT (eXtra High Temp) or VHT (Very High Temp) paint is available in lots of colours and in spray cans or tins for brushing. Look for BBQ paint, stove enamel or engine block paint... Even brake caliper paint should work just fine on most low-stress engines. Block and caliper paint probably won't last long on exhaust manifolds though.

Paul

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Re: spray painting with a brush

Post by stationary stu on Wed Jul 04 2012, 10:45

I have done that myself in the past Neville while touching up awkward places on the car, if using a spray can would just mean it going everywhere you didn't want it to go.

Thanks for posting the good tip,

Stu.

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Re: spray painting with a brush

Post by nutgone on Tue Jul 17 2012, 22:01

Talking about high temperature engine paints, I always had trouble, back in the day, getting one which could cope with the top end of the exhaust on the Tarpen, they would usually bubble & flake off on the first run.
This time I've used a "Plasticote" one, their special high temperature matt black one. So far it's shown no signs of coming off. I prepared it well though & applied a good 2-4 thin coats, leaving it to dry properly between coats. It was left for quite a while before fitting (a good few days) & I followed the instructions, which state it needs to be "baked on" before you can really handle it properly, so I've been careful to hang it up, out of the way, until I was ready to put it on, & tried not to touch it until I had started the engine a few times.

So far, so good. Like I said; if it sticks properly, it'll be a first on this engine, but the prognosis is good. Very Happy It could be because it's matt black, as dull finishes shed heat better than shiny ones, & it may help that I've done the same to the head & barrel, as these weren't painted before, & the new matt black on these will help to lose a little extra heat (we all know black loses heat better than anything else), but time will tell.

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Re: spray painting with a brush

Post by stationary stu on Wed Jul 18 2012, 12:40

Sounds like you've found a good high temp paint, keep us informed of how it goes as it could be very usefull.

Stu.

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Re: spray painting with a brush

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