[Top Down]

'Sand' coloured Sport borders are very common but I prefer the black with red and white kerbing. Anyone successfully painted sand coloured black, if so what paint did you use please?

[Top Down]

Obviously not an issue for others so I've pressed ahead and experimented with Autotek Satin Black spray.

Certainly looks the part, indistinguishable from an original black border and doesn't flake or peel off when twisted or bowed in the hand. 

I guess being an exterior car paint it should be durable too but only time will tell.

[Gpa113]

Missed this post yesterday. 

I repainted sand borders (and black track) to grey. 
Cleaned borders with industrial scale builders wipes, used an automotive primer, then painted with Ultra smooth masonry paint. 
No issues with paint lifting. 
Primer was possibly unnecessary? 
Borders are easier as you don't have to mask the rails!  

If I was just doing borders, then yeah, automotive spray paint would be my choice. 

Pip

[rallyhub]

After degreasing the Scalextric Classic track sections, I simply applied a coat of white wall paint, to get a snow effect. That paint has now lasted for about 25 years.

Hub 

       

[Gpa113]

The track, and layout,  still look amazing

Renault 4, way to go Hub!   Great fun on the road, and cool, but tricky,  as a slot car

Pip

[Top Down]

I'm afraid I didn't do any prep' at all. Just sprayed one end of a 'lead-in' border to see if it would work. Left it overnight, compared it to a factory black moulded item and I couldn't tell the difference, so sprayed the rest of it. Time will tell on durability but the paint does seem well bonded to the plastic.

However, on the strength of that one test piece I have gone ahead and bought the sand coloured borders I need off eBay. I see some spray painting in my future!

[MrFlippant]

Did you flex or scratch the paint at all?

A solution that has worked well for me is "rubberized" spray paint, aka Plasti-Dip spray. It sticks well enough, has a good level of grip, looks good, and doesn't flake off like some regular spray paints do.

[Top Down]

I guess I've just struck lucky with the paint I had to hand. I've twisted, bent and flexed the long straight lead in piece with no issues whatsoever and unless you turn the part over and see the original sand colour, in use they are indistinguishable from the factory black parts I already had.

Quite a few used borders are on their way from eBay heading for a make-over, as I much prefer the clean look the black/red/white borders give alongside the black track.

Another benefit is the sand coloured borders are plentiful and very cheap. (I'm getting eight from one seller for £8 posted!) Factory black borders are hard to find, go for a premium and are almost invariably for the outside of R2's.

[M.Soames]

Ive always degreased as its common to find mold release agent  .

Then use spray etching primer before final top coat 

[MrFlippant]

One of the nice things about the black borders is the flat kerb inserts. No more bump to disturb cars or for spur gears to grind on. That's why I designed printable replacements to fit into borders that have the bumped ones.