Paint matching grumble - Page 2

Salmon · 22nd July 2016, 21:42

Base coat difference was a consideration.

The pieces I photographed were cut off the bumper to fit a tow bar recently

on the back there is some original overspray which is very gold looking.

So I experimented grey primer 2 coats of gold and various levels of platinum gold from a single thin coat to 3 coats none of which got close and it silvered very quickly. that's not conclusive but I'm convinced the top coat would have to be so thin as to show overlapping in order to allow a base coat to influence it.

mbonwick · 22nd July 2016, 22:47

Found this rather interesting thread on MG-Rover.org

Appears to suggest there are in fact two shades of MCN??

first-things-first · 23rd July 2016, 09:13

Sorry if a dumb suggestion. I'm no professional at paint spraying, but from what I've seen of this Pearlescent colour, in direct sunlight in can seem like a silvery pearl at some angles.

I see from your side by side tests it is nowhere near a match.

As the colour is Pearlescent, does it need to be sprayed at a certain angle to reflect properly after application of lacquer top coat?

chris75 · 23rd July 2016, 16:31

Quote:

Originally Posted by first-things-first

As the colour is Pearlescent, does it need to be sprayed at a certain angle to reflect properly after application of lacquer top coat?

I have been told that with pearlescent the distance of the can from the body is critical as it affects the density of the application , and hence the colour

It's not easy stuff to match !

Kennyeth · 24th July 2016, 10:32

Quote:

Originally Posted by klarzy

Are you sure it is not white gold or white gold 2 (MGN)

Is`nt that GMN ?
How many shades of Gold are there?
Ken.

Sonic ZS · 24th July 2016, 17:00

From what I remember from my time in a Rover bodyshop (early 90's), you will probably never get metallic or pearlescent to match when you put original & new paint 'edge to edge', as you show in the pics.

When spraying, the paint supplier, paint colour contents, gun pressure, ambient temperature, distance from panel, ambient and drying temp can all affect the final appearance of the finish, due to both colour and the way the metal flakes end up lying in the paint.

The only panels which could be repaired edge to edge, would be a solid colour (non metallic) which was still quite new & hadn't faded / deteriorated. Even these though, on occasion, could look slightly out if the wrong shade of a specific colour was mixed by mistake (never understood why they did different shades with same code...

)

Metallic & pearls always had to be 'blended through' onto adjacent panels to allow the visual differences to be lost by fading it out to make less obvious. Might be worth trying this to get a less noticeable repair - blend the new colour onto the surrounding area then lacquer the whole panel. Easier said than done though

jonc3725 · 24th July 2016, 21:23

I agree with Paul above.

Pearl and metallic paints nearly always need to be blended and silvers and golds are worst than most. If you know what you are looking at you see loads of these colour cars with different shades of panels where they have been blended.
Blending sounds easy but I can never do it properly

so gave up and a I get a proffesional now

ziggy72 · 24th July 2016, 21:41

I work in a bodyshop and the painters hate doing silvers. A blend is needed every time as an edge to edge match is almost impossible with slivers and metalics.
As has already been said, when a painter does a test card the distance the spray gun is away from the card brings up a different shade almost every time especially with metalics and every time with pearls. Painting is an art and is so hard to do with an aerosol.

22nd July 2016, 21:42	#11
Salmon Loves to post Rover 75 Saloon CDTi Connesuer Join Date: Mar 2014 Location: Winchester Posts: 424 Thanks: 251 Thanked 33 Times in 28 Posts	Base coat difference was a consideration. The pieces I photographed were cut off the bumper to fit a tow bar recently on the back there is some original overspray which is very gold looking. So I experimented grey primer 2 coats of gold and various levels of platinum gold from a single thin coat to 3 coats none of which got close and it silvered very quickly. that's not conclusive but I'm convinced the top coat would have to be so thin as to show overlapping in order to allow a base coat to influence it. __________________ [SIGPIC][/SIGPIC]

24th July 2016, 17:00	#16
Sonic ZS Posted a thing or two 75 Conn CDT Tourer, 75 Conn SE V6, 75 Conn V6, 75 Conn CDTi Tourer, ZS 180 Join Date: Jan 2014 Location: Devon Posts: 1,986 Thanks: 1,287 Thanked 963 Times in 534 Posts	From what I remember from my time in a Rover bodyshop (early 90's), you will probably never get metallic or pearlescent to match when you put original & new paint 'edge to edge', as you show in the pics. When spraying, the paint supplier, paint colour contents, gun pressure, ambient temperature, distance from panel, ambient and drying temp can all affect the final appearance of the finish, due to both colour and the way the metal flakes end up lying in the paint. The only panels which could be repaired edge to edge, would be a solid colour (non metallic) which was still quite new & hadn't faded / deteriorated. Even these though, on occasion, could look slightly out if the wrong shade of a specific colour was mixed by mistake (never understood why they did different shades with same code... ) Metallic & pearls always had to be 'blended through' onto adjacent panels to allow the visual differences to be lost by fading it out to make less obvious. Might be worth trying this to get a less noticeable repair - blend the new colour onto the surrounding area then lacquer the whole panel. Easier said than done though __________________

24th July 2016, 21:23	#17
jonc3725 Posted a thing or two MG ZT 190 + and MKIV Supra Join Date: Jan 2009 Location: Plymouth Posts: 1,551 Thanks: 224 Thanked 493 Times in 359 Posts	I agree with Paul above. Pearl and metallic paints nearly always need to be blended and silvers and golds are worst than most. If you know what you are looking at you see loads of these colour cars with different shades of panels where they have been blended. Blending sounds easy but I can never do it properly so gave up and a I get a proffesional now __________________ Jon C Living the dream MK IV VVTI Tiptronic TT Toyota Supra MG ZT 190+ BornTuesday, 10th July 2001 @ 09:01:10 259th ZT to run off the production line, out of 18,894 252nd ZT 190 + to be made out of 4,023 101st ZT in Solar Red (code: CEU) to be made out of 1,888

24th July 2016, 21:41	#18
ziggy72 Posted a thing or two Jaguar S-Type R Audi A5 Sportback Join Date: May 2012 Location: Gateshead Posts: 1,009 Thanks: 823 Thanked 323 Times in 222 Posts	I work in a bodyshop and the painters hate doing silvers. A blend is needed every time as an edge to edge match is almost impossible with slivers and metalics. As has already been said, when a painter does a test card the distance the spray gun is away from the card brings up a different shade almost every time especially with metalics and every time with pearls. Painting is an art and is so hard to do with an aerosol. __________________ [SIGPIC][/SIGPIC] Last edited by ziggy72; 24th July 2016 at 22:13..

22nd July 2016, 22:47	#12
mbonwick Gets stuck in Connoisseur SE 1.8 Auto Saloon Join Date: Jul 2015 Location: Kendal Posts: 633 Thanks: 129 Thanked 176 Times in 147 Posts	Found this rather interesting thread on MG-Rover.org Appears to suggest there are in fact two shades of MCN??

23rd July 2016, 09:13	#13
first-things-first Posted a thing or two MG ZT Join Date: Jul 2014 Location: Hornchurch Posts: 1,255 Thanks: 176 Thanked 352 Times in 272 Posts	Sorry if a dumb suggestion. I'm no professional at paint spraying, but from what I've seen of this Pearlescent colour, in direct sunlight in can seem like a silvery pearl at some angles. I see from your side by side tests it is nowhere near a match. As the colour is Pearlescent, does it need to be sprayed at a certain angle to reflect properly after application of lacquer top coat?