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Hi guys

Soon we will be swapping our old ribbed 90 roof for a later smooth roof but before we do we want to re-paint the new roof atm its in white but want to go with black but its been roughly 25-30 years since i last used a spray gun and a novice even then and son who wants to do it has never used a spray gun before so as we are both novices at this can anyone give us an idea of what spray gun to go for, if it means anything my compressor is a 14.5 cfm compressor

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If you paint it with a single pack polyurethane paint,you can use a 1.4-1.7mm hvlp spray gun - the cheapy ones are fine to be honest. You can get by with using a 3M disposable charcoal filter mask.

if you want to use 2k paint a 1.4 tip is good, but your compressor wont handle an air fed mask too - a 3M mask might just get the job done if you are very well ventilated and it's just a roof, but wear goggles and gloves too to cut down skin exposure and try not to get the nozzle pressure too high so it creates too much mist.

Same goes with cellulose too, though it's slightly less deadly than 2k.

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If you paint it with a single pack polyurethane paint,you can use a 1.4-1.7mm hvlp spray gun - the cheapy ones are fine to be honest. You can get by with using a 3M disposable charcoal filter mask.

if you want to use 2k paint a 1.4 tip is good, but your compressor wont handle an air fed mask too - a 3M mask might just get the job done if you are very well ventilated and it's just a roof, but wear goggles and gloves too to cut down skin exposure and try not to get the nozzle pressure too high so it creates too much mist.

Same goes with cellulose too, though it's slightly less deadly than 2k.

Cheers Eightpot yeah i was thinking about a cheap one for now as its only the roof we are doing but if he does a good job of it i mite treat him to a decent one as it will come in handy :i-m_so_happy:

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The finish depends on other factors really - temperature, air pressure/volume, cleanliness, paint mix, type of paint, how it's applied etc etc, so I'd say a novice hand is going to get the same results with a cheap gun or a top of the range to be honest. Get more paint than you need and it's no stress to flat it back a bit and do another coat if it goes squiffy :)

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