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Help! type of spry paint can be use for this foam board? Thanks

#7
You want to do thin coats, a mist coat for the primer, then very thin coats for the colour.
If you are using the brown FT foam it needs to be keyed with a fine sand paper or Scotchbrite pad before you paint on it.
its not available in my country SRI LANKA. need to check for any online supplier. any other options if you get please let me know.
Also in my country KT foam board and Regi foam only available. Thanks
 

Merv

Well-known member
#8
With most rattle cans it is not the paint that is the problem, it’s the solvents & propellents. The trick is to hold the can 18” away from the foam. This gives enough time for all of the nastiest to evaporate before they hit the foam. A coat of oil based polyurethane can also help protect the foam from damage.

It’s always a good idea to test a new product on a piece of scrap.
 
Last edited:

FDS

Well-known member
#9
The foam board in your country is likely the paper type? It’s heavier than FT board, we have it too. As above any aerosol paint can melt the foam. Paint the exposed edges with PVA glue before painting. No need to sand or key the surface of the paper board, just light coats from 12-18” away.
 
#10
With most rattle cans it is not the paint that is the problem, it’s the solvents & propellents. The trick is to hold the can 18” away from the foam. This gives enough time for all of the nastiest to evaporate before they hit the foam. A coat of oil based polyurethane can also help protect the foam from damage.

It’s always a good idea to test a new product on a piece of scrap.
Thanks for the help, My models are made up with KT foam and Styro foam, I tried with TOA spary it got melted. I will try with 18" away and see now. thanks
 
#11
With most rattle cans it is not the paint that is the problem, it’s the solvents & propellents. The trick is to hold the can 18” away from the foam. This gives enough time for all of the nastiest to evaporate before they hit the foam. A coat of oil based polyurethane can also help protect the foam from damage.

It’s always a good idea to test a new product on a piece of scrap.
The foam board in your country is likely the paper type? It’s heavier than FT board, we have it too. As above any aerosol paint can melt the foam. Paint the exposed edges with PVA glue before painting. No need to sand or key the surface of the paper board, just light coats from 12-18” away.
Thanks for the help, My models are made up with KT foam and Styro foam, I tried with TOA spary it got melted. I will try with 18" away and see now. thanks