I'm painting some small plastic parts and was using the House of kolor kbc series of colors along with their usc01 show klear with ru311 reducer.
I'm noticing that even after 7 days I'm still able to make fingernail marks in the paint and peel off the clear/basecoat. The primer seems to be sticking to the plastic but almost is gummy. I also have noticed that the chipped area does still have a solvent smell after i pull with my fingernail.
From a previous post that 69 widetrack had responded to it seems like maybe I'm not letting my basecoat flash properly.
my ultimate question is that I need this clear coat to be rock hard and not get marks when say a coin is scratched across the surface.
Is the HOK klear a soft clear to begin with?
Here is my work process. Please let me know if you notice an area where you think I'm screwing up.
I'm at my wits end here.
Location : Houston TX
Temp/Humidity : 80-90 degree F/70-90 % Humidity
Material used
Primer : Duplicolor (rattlecan) auto sandable primer
Basecoat : House of Kolor Kandy base coat(brandywine)
Clear : House of Kolor show klear, KU152 hardner,
I'm using my airbrush because of the small amount I'm spraying
When I mix my clear I'm measuring using a syringe and measuring out 6ml of USC01, 2ml of KU152, 2ml of RU311 reducer.
Painting process
scrub plastic part with hot soapy water and rinse with hot water.
sand with 220 grit wet dry paper
rewash with hot soapy water and rinse
compressed air to dry
Light initial coat of primer with 10 minute wait, second light coat 10 minute wait, 3rd heavier coat and 30 minute wait per the can
I do not sand between primer and kbc
apply 3 coats of kbc looking for dull surface before respraying anywhere from 1-5 minutes.
wait 20-30 minutes after third coat
Mix up clear and apply a medium coat
flash for 15 minutes
2 more medium wet coats with 20 minute flash time
The finish is laying out beautiful and clear, no solvent pop or cloudiness or anything.
But for the life of me I can't get the clear to get hard.
What am I doing wrong oh gods of custom paints.?
Thanks for any and all help.
I'm noticing that even after 7 days I'm still able to make fingernail marks in the paint and peel off the clear/basecoat. The primer seems to be sticking to the plastic but almost is gummy. I also have noticed that the chipped area does still have a solvent smell after i pull with my fingernail.
From a previous post that 69 widetrack had responded to it seems like maybe I'm not letting my basecoat flash properly.
my ultimate question is that I need this clear coat to be rock hard and not get marks when say a coin is scratched across the surface.
Is the HOK klear a soft clear to begin with?
Here is my work process. Please let me know if you notice an area where you think I'm screwing up.
I'm at my wits end here.
Location : Houston TX
Temp/Humidity : 80-90 degree F/70-90 % Humidity
Material used
Primer : Duplicolor (rattlecan) auto sandable primer
Basecoat : House of Kolor Kandy base coat(brandywine)
Clear : House of Kolor show klear, KU152 hardner,
I'm using my airbrush because of the small amount I'm spraying
When I mix my clear I'm measuring using a syringe and measuring out 6ml of USC01, 2ml of KU152, 2ml of RU311 reducer.
Painting process
scrub plastic part with hot soapy water and rinse with hot water.
sand with 220 grit wet dry paper
rewash with hot soapy water and rinse
compressed air to dry
Light initial coat of primer with 10 minute wait, second light coat 10 minute wait, 3rd heavier coat and 30 minute wait per the can
I do not sand between primer and kbc
apply 3 coats of kbc looking for dull surface before respraying anywhere from 1-5 minutes.
wait 20-30 minutes after third coat
Mix up clear and apply a medium coat
flash for 15 minutes
2 more medium wet coats with 20 minute flash time
The finish is laying out beautiful and clear, no solvent pop or cloudiness or anything.
But for the life of me I can't get the clear to get hard.
What am I doing wrong oh gods of custom paints.?
Thanks for any and all help.