Rapido Trains has their "Proto Paint" line and they do have a good foothold in the British model train industry.
https://railsofsheffield.com/
Brent
"All of the world's problems are the result of the difference between how we think and how the world works."
You may be able to find some of the colors You need with Tamiya, Humbrol, Vallejo, Revell, Mr Hobby Paints:
https://www.emodels.co.uk/visit-us
I have also used Citadel Acrylic Paints for many things......main use was Wargaming figures:
https://roguegames.co.uk/product-category/painting-hobby-supplies/citadel-paints?msclkid=299cf6f60eb411ca979aab49234e7470&utm_source=bing&utm_medium=cpc&utm_campaign=Search%20%7C%20Paints&utm_term=%2Bcitadel%20%2Bpaints&utm_content=Citadel%20Paints
You may also find this Floquil color conversion chart useful for the above mentioned paints:
https://www.microscale.com/Floquil%20Color%20Chart.pdf
It appears some of the rules have changed, in direct relation to Our discussion on USPS Paint shipping. I will do some more research on the matter and get back to You by e-mail:
https://www.myus.com/blog/can-you-ship-paint-from-the-usa/
Take Care!
Frank
If you are looking for typical US brand model railroad paints, than you may have to order them directly from the US.
Humbrol, Tamiya, Revell, or Vallejo paints are available from various online sources, one of them being e models.
Happy times!
Ulrich (aka The Tin Man)
"You´re never too old for a happy childhood!"
Hi
Where in the UK can I purchase the colors I need ?
Many Thanks
Garf