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Painting over cellulose
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RogerB



Joined: 18 Dec 2014
Posts: 177
Location: Suffolk Coastal. U.K.

PostPosted: Fri Nov 16, 2018 11:11 pm    Post subject: Painting over cellulose Reply with quote

My Standard 8 was sprayed with black cellulose about 6-7 years ago, and although I have kept the paintwork well polished, scratches and other blemishes are now showing through. If I want to repaint the bonnet top and roof with coach paint and leave the 'good' cellulose paint areas can I paint over the cellulose and how do I prevent an obvious joint between the coach and cellulose paint?

RogerB
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ukdave2002



Joined: 23 Nov 2007
Posts: 4100
Location: South Cheshire

PostPosted: Sat Nov 17, 2018 4:34 pm    Post subject: Reply with quote

Is there any reason in particular that you want to use coach paint? Oil based over cellulose is ok, but if anyone attempts to pant with cellulose over the oil base in the future they will get a reaction.

I'd spray in cellulose and blend in by moving the gun away where you meet the good paint, cut in when the paint is cured, or you can use fade out thinner.

Dave
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ukdave2002



Joined: 23 Nov 2007
Posts: 4100
Location: South Cheshire

PostPosted: Sat Nov 17, 2018 4:40 pm    Post subject: Reply with quote

Is there any reason in particular that you want to use coach paint? Oil based over cellulose is ok, but if anyone attempts to pant will cellulose over the oil base in the future they will get a reaction.

I'd spray in cellulose and blend in by moving the gun away where you meet the good paint, cut in when the paint is cured, or you can use fade out thinner.

Dave
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RogerB



Joined: 18 Dec 2014
Posts: 177
Location: Suffolk Coastal. U.K.

PostPosted: Sun Nov 18, 2018 5:09 pm    Post subject: Painting over Cellulose Reply with quote

Thank you for your response. As I do not have a spray gun all my painting is going to be done by brush and the only experience of brush painting was on a motor bike many years ago.

If I can use an oil based paint that's ok providing is can be applied with a brush. I'm not really worried about a future owner respraying the car with cellulose.....

What oil based paint is recommended and does it require a primer?

RogerB
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Ray White



Joined: 02 Dec 2014
Posts: 6286
Location: Derby

PostPosted: Mon Nov 19, 2018 9:12 pm    Post subject: Reply with quote

I would suggest Dave has the answer.

However, if you don't have a compressor and gun and don't wish to invest in one why not do the job with rattle cans? It is surprising how good a finish you can get - much better than brush painting (i.m.o.).

Your call, of course.
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Miken



Joined: 24 Dec 2012
Posts: 544

PostPosted: Mon Nov 19, 2018 11:55 pm    Post subject: Reply with quote

To get an answer to your actual question, you could have a look at the Craftmaster Paints UK website. They make traditional enamel paints for all types of vehicles boats and stationary engines for brushing or spraying.
You can also ring them up for advice. Very helpful.
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V8 Nutter



Joined: 27 Aug 2012
Posts: 587

PostPosted: Tue Nov 20, 2018 10:12 am    Post subject: Reply with quote

Back in the dim distant past I hand painted a V8 Pilot with Valspar (is that still available?) After using plenty of rubbing down compound and plenty of old fashioned wax polish it was good enough to pass as a cheap respray

OOPs edited a typing error
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Penman



Joined: 23 Nov 2007
Posts: 4751
Location: Swindon, Wilts.

PostPosted: Tue Nov 20, 2018 5:26 pm    Post subject: Reply with quote

Hi
I'm sure I've seen Valspar somewhere in the last couple of years.
https://www.valsparpaint.co.uk/
There is a store finder on there.

My father sprayed our Austin TenFour with Valspar, I can't remember how much thinners he had to use but it was probably a fair bit, using a cylinder vacuum cleaner spray attachment, which of course was plugged in to the outlet end.
That was a feature of cylinder type cleaners having a hose fitting at each end I don't think any modern vacuums have that facility.
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alastairq



Joined: 14 Oct 2016
Posts: 1950
Location: East Yorkshire

PostPosted: Wed Nov 21, 2018 10:43 am    Post subject: Reply with quote

Quote:
That was a feature of cylinder type cleaners having a hose fitting at each end I don't think any modern vacuums have that facility.
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I have purchased a cheap vacuum cleaner from Screwfix [In a 'new premises' opening offer].....really for the workshop, but also used to sweep the grass, clear up leaves, etc...[it has a humongous sponge filter inside, which gets cleaned out now & then]....it has both a suction hole, and a blower hole....a system I discovered to my dismay when I first tried it out in the kitchen....... Sad
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alastairq



Joined: 14 Oct 2016
Posts: 1950
Location: East Yorkshire

PostPosted: Wed Nov 21, 2018 10:46 am    Post subject: Reply with quote

Whilst on the topic of hand-painting vehicle bodywork....can I offer the method of using a roller to apply the colour, followed immediately by a brush to even things out?

I have seen one or two YouTube videos of this technique, and , by my somewhat reduced standards in this department, it seemed a useful technique?
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Cannon special [1996 registered. Built in 1950's]
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ukdave2002



Joined: 23 Nov 2007
Posts: 4100
Location: South Cheshire

PostPosted: Wed Nov 21, 2018 7:39 pm    Post subject: Reply with quote

Penman wrote:
Hi
I'm sure I've seen Valspar somewhere in the last couple of years.
https://www.valsparpaint.co.uk/
There is a store finder on there.

My father sprayed our Austin TenFour with Valspar, I can't remember how much thinners he had to use but it was probably a fair bit, using a cylinder vacuum cleaner spray attachment, which of course was plugged in to the outlet end.
That was a feature of cylinder type cleaners having a hose fitting at each end I don't think any modern vacuums have that facility.
my mum & dad had one of those, it was a Hoover cylinder vac, the fittings were a dark green colour with a glass spray gun.....it was rubbish as a spray gun!

These days a gun and small compressor can be bought for less than £100, so why use coach paint?

Dave
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Rick
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Joined: 27 Apr 2005
Posts: 22429
Location: UK

PostPosted: Wed Nov 21, 2018 7:57 pm    Post subject: Reply with quote

You'll need some of this too ...


http://www.oldclassiccar.co.uk/masking-a-car.htm

RJ
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Ray White



Joined: 02 Dec 2014
Posts: 6286
Location: Derby

PostPosted: Wed Nov 21, 2018 8:38 pm    Post subject: Reply with quote

ahem..other makes of "masking tape" are available. Razz
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