spray nozzle size for gelcoat

[carlos515]

Hi all,
It has been some years since I have posted. Life got in the way of my project......
I will begin to finish my 1990 Sunray Prelude 20 foot bowrider. I will be sanding the old gelcoat and applying a new gelcoat/Duratec 904-001 finish. I have a variety of spray guns. What tip size would be good for the 50/50 mix of gelcoat, Duratec? I will be spraying in 26 to 30 degree Celsius weather.

 

[MikeSchinlaub]

I have a 2.0 gun that sprays great.

I haven't used Duratec, but 50/50 seems like a lot. I think @Scott Danforth has experience with it.

 

[Scott Danforth]

You need to test.

50/50 is what I sprayed

2.3mm tip

Pre-measured and iced down. Have a helper mix as needed.

 

[carlos515]

Thank you,
Carlos

 

[Scott Danforth]

If your doing multiple colors and taping off sections. Read this. https://www.boatdesign.net/threads/gelcoating-the-whole-boat-down-to-the-waterline.61694/