shine
Member
i have spent an exhausting week trying to help a guy shoot slicksand . no matter what i told him he has done everything wrong .
first off imho you cant stir poly with a stick . wasted effort . way too many solids .
you cant just refill the cup . pot life will catch you .
you really need to reduce it 5-10 % . will save you a lot of headaches .
even after stirring you need to strain it . you'll never get there with regular paper cone strainers .
find a mixing blade at home depot or a hardware store for your drill . i have a batter blade from an old mixer with a rod extending it a few inches .
find a painters pail at least 2qrt .
mix no more than 1 qrt .
add your reducer and mix for at least 3 min ( not 20 seconds ) to break up the solids .
strain into another pail using a Binks red cup strainer .
when ready to shoot add your mek and stir well . your racing pot life now so don't strain again . any extra poly needs to be added in the beginning not at the end . by the time you spray a cup pot life is biting you in the butt . your nozzle if full of settled solids and kicking .
rinse your gun well between cups or you will get dry spray or horrible peel .
use at least a 2.0 preferably a 2.3 .
i explained all the above to the young man . he ignored it , dumped it in a cup stirred it up with a stick then created a disaster . i stopped taking his calls .
polyester is a pia , you just cant screw around with short life materials . high solid poly is like shooting clear. clear is big drops or little drops . poly is big chunks or little chunks . the choice is yours .
i learned this in the early 70's from a man from Europe sent over here to oversee the repairs of an aluminum body Ferrari race car . i knew jack shit about them . it had a white poly on it that had to be shot with a pressure pot . first thing i did was let it kick in the pot . this taught me about precise mixing amounts and pot life . also having to listen to a fat ass German rant and bitch for an hr .
this advice is just food for thought and worth just what you paid for it .
first off imho you cant stir poly with a stick . wasted effort . way too many solids .
you cant just refill the cup . pot life will catch you .
you really need to reduce it 5-10 % . will save you a lot of headaches .
even after stirring you need to strain it . you'll never get there with regular paper cone strainers .
find a mixing blade at home depot or a hardware store for your drill . i have a batter blade from an old mixer with a rod extending it a few inches .
find a painters pail at least 2qrt .
mix no more than 1 qrt .
add your reducer and mix for at least 3 min ( not 20 seconds ) to break up the solids .
strain into another pail using a Binks red cup strainer .
when ready to shoot add your mek and stir well . your racing pot life now so don't strain again . any extra poly needs to be added in the beginning not at the end . by the time you spray a cup pot life is biting you in the butt . your nozzle if full of settled solids and kicking .
rinse your gun well between cups or you will get dry spray or horrible peel .
use at least a 2.0 preferably a 2.3 .
i explained all the above to the young man . he ignored it , dumped it in a cup stirred it up with a stick then created a disaster . i stopped taking his calls .
polyester is a pia , you just cant screw around with short life materials . high solid poly is like shooting clear. clear is big drops or little drops . poly is big chunks or little chunks . the choice is yours .
i learned this in the early 70's from a man from Europe sent over here to oversee the repairs of an aluminum body Ferrari race car . i knew jack shit about them . it had a white poly on it that had to be shot with a pressure pot . first thing i did was let it kick in the pot . this taught me about precise mixing amounts and pot life . also having to listen to a fat ass German rant and bitch for an hr .
this advice is just food for thought and worth just what you paid for it .