I don’t have anything to add about the paint, but as far as retirement…I may now have a little more money but time seems to move at light speed.

Chug and Roy,

Really helpful thank you. Gives me hope👌

Hi, when using the Halford acrylic colour paint it needs the satin or gloss spray to harden it. When all painting finished as far as the hull goes I use good quality furniture polish to give an additional layer of protection and the water slides off smoothly.
I have several models that are nearly as new paintwise that are 25 -30 years old. I have yacht made by a friend with the same paint job just cleaned and polished up made in 1965. That is 60 years ago and Humbrol paint, so good foundations last well.

I have a chest of drawer from 1962 when you could buy bare wood furniture. I spent time painting it and apart from knocks the paintwork is OK but it now resides in the garage still doing its job full of magazines.

Roy

Steve:
Something within that nature happened to me a year after spraying a model and going back for touch ups.

Here are a few facts:1. The original paint has aged
After a year the paint on the model has:
Oxidized slightly
Changed tone a bit
Lost some solvents
Even if the color originally matched perfectly, the aged surface tone is no longer exactly the same as fresh paint.
2. Clear coats change the color
If you applied a clear coat (gloss, satin, or matte) over the original paint, it slightly alters the tone.
For example:
Semi-gloss or gloss makes the color appear deeper/darker
Matte makes it look lighter or chalkier
So when you touch up with fresh paint without exactly the same clear coat conditions, it looks different.
3. Spray orientation and thickness
Rattle cans deposit paint differently depending on:
spray distance
pressure in the can
thickness of the layer
A touch-up spot is usually thicker, so the color can appear darker.
4. Pigment settling in the can
After a long time the pigments in a rattle can separate and settle. Even if shaken well, the color mixture may not atomize exactly like it did a year ago.
5. Surface sheen difference
Even if the color is identical, a different surface sheen makes your eye think the color is different.
Example:
Old paint: satin
New touch-up: slightly flatter
The light reflects differently and the spot becomes visible.

And finally:
Instead of touching up just the spot:
Lightly wet sand the whole area (1000–2000 grit).
Spray one very light mist coat over the entire panel or section.
Then apply the same clear coat again.
This blends the old and new paint.

😎