fixing dusty paint texture

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grant2207

Member - Posts: 24

Joined: July 08, 2008

Location: United States

Posted: August 01, 2008 at 12:08 PM / IP Logged

i am painting a fiberglass subwoofer enclosure. first layer (for stripping) is metalic green, second layer is gloss clearcoat for the stripes, third layer is flat black (over all masking of hte stripes), and the fourth layer will be a flat clearcoat.

my problem lies between coats 3 and 4... i applied 4 coats of flat black to the surface, and a half hour later applied a coat of clear coat. the clear coat left a dusty white look over the black.... a closer look showed that the black had a rougher texture, my guess being that dust got under one of the coats...

i was wondering if another couple heavier coats of black would fix this or if i need to sand it down...

if anyone has any other fix suggestions that would be great....

twistedp

Member - Posts: 38

Joined: July 10, 2008

Location: Texas, United States

Posted: August 01, 2008 at 9:02 PM / IP Logged

does the look bother you or the texture? if the look bothers you, you will need to sand and respray both layers. what kind of paint are you using?

Twisted Performance

thunda_hawg

Member - Posts: 46

Joined: December 21, 2007

Location: Georgia, United States

Posted: August 02, 2008 at 3:34 PM / IP Logged

sounds like your clear is not set up for the temp range that your in (too hot) your gun is gummed up and not atomizeing properly. try not to tack and whack the clear and use a medium temp catalyst

89' 240sx

Rockford t8004

boston z6 comp.

eclipse 3432

polk MM 8"

Taylor owes Joe a Sandwich

thunda_hawg

Member - Posts: 46

Joined: December 21, 2007

Location: Georgia, United States

Posted: August 02, 2008 at 3:42 PM / IP Logged

this is based on using urethane two stage paints> (I use auto air color with HoK inter-coat clears for effects and candies , then transtar euro for the final clearcoat usually)

89' 240sx

Rockford t8004

boston z6 comp.

eclipse 3432

polk MM 8"

Taylor owes Joe a Sandwich

grant2207

Member - Posts: 24

Joined: July 08, 2008

Location: United States

Posted: August 02, 2008 at 5:37 PM / IP Logged

i think it was over all the heat. the dusty texture may have caused the collecting but the heat caused the color. i sanded it down with 600 grit dry to get it smooth and then clear coated it out of the sun and on a day with a nice breeze. it turned out much better, with no more white sandy dust stuff on it.

grant2207

Member - Posts: 24

Joined: July 08, 2008

Location: United States

Posted: August 02, 2008 at 8:04 PM / IP Logged

i found the best way to do it...the clear coat is just stupid over all....u just need to load really heavy coats on....like glaze it..... i was afraid originaly of wrinkling but it doesnt at all...it just goes on thick. it smoothed out all sandy spots too....th eonly problem is that i have ran out of paint again....and that doodie is 5 dollars a can! two cans so far.....

jayson33

Copper - Posts: 165

Joined: June 12, 2008

Location: Indiana, United States

Posted: August 22, 2008 at 1:51 AM / IP Logged

Canned spray paints are for grafaitti artist Its cheaper to buy good paint like Deupont you will get alot better

depth in color and far better mirror like finish. As an end result

P.S. House of Kolor paints.....can you say crayloa water colors

My wife thinks bagging a truck means you kick it in the truck nuts

thunda_hawg

Member - Posts: 46

Joined: December 21, 2007

Location: Georgia, United States

Posted: August 22, 2008 at 8:29 AM / IP Logged

crayola? not sure what you mean.

89' 240sx

Rockford t8004

boston z6 comp.

eclipse 3432

polk MM 8"

Taylor owes Joe a Sandwich

jayson33

Copper - Posts: 165

Joined: June 12, 2008

Location: Indiana, United States

Posted: August 22, 2008 at 9:08 AM / IP Logged

thunda_hawg wrote:

crayola? not sure what you mean.

It's a joke...lol its very over priced auto paint you would get same results usin' crayola water paints

My wife thinks bagging a truck means you kick it in the truck nuts

thunda_hawg

Member - Posts: 46

Joined: December 21, 2007

Location: Georgia, United States

Posted: August 22, 2008 at 11:09 AM / IP Logged

oh i see . definately when you talk colors and clears . I use the intercoat which was pretty cheap like maybe 20/qt is pretty much where i leave it with HoK. I like using auto air and sherwin for base and transtar for clears. HoK intercoats dont have UV protection so you can do effects like chrome and glow in the dark without sacrificing the light reflectionand absorbtion properties. probably why its so cheap. last I heard Hok wasnt all that expensive anymore.

Dupont is also a good choice if our just shooting a single color/single stage. their "hot hues" are kinda cool too.

89' 240sx

Rockford t8004

boston z6 comp.

eclipse 3432

polk MM 8"

Taylor owes Joe a Sandwich

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