Paint:Thinner ratio
Forum rules
By using this site, you agree to our rules. Please see: Terms of Use
By using this site, you agree to our rules. Please see: Terms of Use
-
- Minor Legend
- Posts: 1550
- Joined: Tue Jul 24, 2007 8:35 pm
- Location: Northampton
- MMOC Member: No
Paint:Thinner ratio
While I'm having trouble with spraing and the weather isn't really at it's best I thought I might have a go at hand painting a few parts and see how it works out.
I know it's usually 50:50 celly paint and thinners for spraying but what sort of viscousity ratio d'you think I should use for brushing?
I know it's usually 50:50 celly paint and thinners for spraying but what sort of viscousity ratio d'you think I should use for brushing?
Andy W____________1961 2-door 948cc (Sidney)_____________1963 2-door 1275cc (Emily)_______

-
- Minor Addict
- Posts: 833
- Joined: Sun Jun 13, 2004 12:47 pm
- Location: Colne Lancs.
- MMOC Member: No
What probs are you having spraying, other than the ambient!! I had hell and all problems at first. needs a thin glance over, let it go tacky,then the main paint has something to hang on to. The temptation is very great to put on too much in the first go-runs, curtains etc. Not much fun this time of year, whereas the synthetic I've been using last week seems to love the cool, as long as there's a wind it dries like the washing!!
-
- Minor Fan
- Posts: 394
- Joined: Mon May 05, 2008 10:49 pm
- Location: Fife Scotland
- MMOC Member: No
I know what you mean, I did most of my spraying in June and the a warmish day in September. Did the last few bits late October early November and it dries much slowerLINEARAUDIO wrote:What probs are you having spraying, other than the ambient!! I had hell and all problems at first. needs a thin glance over, let it go tacky,then the main paint has something to hang on to. The temptation is very great to put on too much in the first go-runs, curtains etc. Not much fun this time of year, whereas the synthetic I've been using last week seems to love the cool, as long as there's a wind it dries like the washing!!

[sig]8143[/sig]
I rollered two back wings in celly, it was really easy, and I got a "nice", orange peel finish. The real key was to go slowly as if you get air bubbles into it they burst and make little craters.
It is an absolute swine to flatten afterwards. you have to build a really thick layer and then flatten back to a smooth finish.
I bought a cheap HVLP set and did the front wings in around a quarter of the time. Isn't it a bit cold and damp to be spraying now unless you've a good heated garage?
It is possible to brush/roller celly, but it takes quite a while to get a good finish. I used about 75/25 paint to thinners IIRC. with around 50/50 for the final few coats.
Andrew
It is an absolute swine to flatten afterwards. you have to build a really thick layer and then flatten back to a smooth finish.
I bought a cheap HVLP set and did the front wings in around a quarter of the time. Isn't it a bit cold and damp to be spraying now unless you've a good heated garage?
It is possible to brush/roller celly, but it takes quite a while to get a good finish. I used about 75/25 paint to thinners IIRC. with around 50/50 for the final few coats.
Andrew
Maggie, 1969, 4 door, Almond Green.
And Project "Traveller"...
[sig]4253[/sig]
And Project "Traveller"...
[sig]4253[/sig]
-
- Minor Legend
- Posts: 3798
- Joined: Tue Jul 25, 2006 9:46 am
- Location: Burnley
- MMOC Member: No
Apparently it is possible to get a decent smooth finish straight from the brush with celly if you have a top quality brush and years of practice. Us mere mortals with B&Q paintbrushes have to settle for slapping loads on and flatting it back. 



Alex Holden - http://www.alexholden.net/
If it doesn't work, you're not hitting it with a big enough hammer.
-
- Minor Legend
- Posts: 1453
- Joined: Tue Jan 30, 2007 10:09 pm
- Location: Essex
- MMOC Member: No
I thought that the old 'coachworks' companies used a brushing cellulose which takes longer to dry? Halfords used to sell small (500ml) tins of a similar paint but limited in the range of colours.
Any 'rollering' I have done on internal doors etc (oil based) have been finished off with a Purdy paint brush (long fine haired) to pull out the orange peely/bubbled finish that can be left, The roller is only used for applying the paint thinly and evenly.
This process can leave a very good finish.
Any 'rollering' I have done on internal doors etc (oil based) have been finished off with a Purdy paint brush (long fine haired) to pull out the orange peely/bubbled finish that can be left, The roller is only used for applying the paint thinly and evenly.
This process can leave a very good finish.

Coach enamel can still be bought at reasonable prices from noat yards. They use it to paint the pretty bits on canal barges etc. I am considering this option on my next project as I used it last year to paint a Landrover and it came out quite good (for a Landrover anyway) 

[sig]8426[/sig]
Compare the Minors - Simples !! http://mog.myfreeforum.org/index.php
Compare the Minors - Simples !! http://mog.myfreeforum.org/index.php
I've still got the remains of a tin of vintage brushing celloluse, it's definitely celly, not enamel, but slower drying. As BMC said, using ordinary mix celly for brushing is a bugger as it starts drying as you brush. I like the idea of rollering, can imagine flatting the orange peel though. My first efforts spraying with my HVLP plant I used the paint too thick, then of course put some more on to level it out ( I know it doesn't!!). Ended up with serious orange peel that could have warranted a DA to flat it withalanworland wrote:I thought that the old 'coachworks' companies used a brushing cellulose which takes longer to dry? Halfords used to sell small (500ml) tins of a similar paint but limited in the range of colours...
.

-
- Minor Addict
- Posts: 833
- Joined: Sun Jun 13, 2004 12:47 pm
- Location: Colne Lancs.
- MMOC Member: No
I used Tekaloid coach enamel to start with on my car. But never did get the hang of brushing, plus you can't cut back Tekaloid. Then came Rustoleum. Brilliant stuff. You put it on with a 4" foam roller. When you get mix right, about 20% white spirit, it just flows out. If you get air bubbles you just lightly blow on it and the majority of them disapear. You can also cut it back like cellulose, then polish and Bobs yer uncle.<br>
<br><br>
<br>
[sig]2052[/sig]Ian.
Yes in those days it was common,there was a massive range of colours and we mixed coachpaint and celly. .2 pack had only just come in then.
It was hard work,i remember mixing Geenall Whitley green and Post office red by the gallon....and going home high off the fumes!
And making up number plates with numbers that pressed in and fixed with studs....happy days......NOT!!!!
It was hard work,i remember mixing Geenall Whitley green and Post office red by the gallon....and going home high off the fumes!
And making up number plates with numbers that pressed in and fixed with studs....happy days......NOT!!!!

Wanderinstar- I love the dual purpose patio cum paintshop!! How do you get the filler dust off your plants? Thats always my problem!wanderinstar wrote:I used Tekaloid coach enamel to start with on my car. But never did get the hang of brushing, plus you can't cut back Tekaloid. Then came Rustoleum. Brilliant stuff. You put it on with a 4" foam roller. When you get mix right, about 20% white spirit, it just flows out. If you get air bubbles you just lightly blow on it and the majority of them disapear. You can also cut it back like cellulose, then polish and Bobs yer uncle.<br><br><br>
<br>
-
- Minor Fan
- Posts: 111
- Joined: Fri Jun 29, 2007 5:20 pm
- Location: leicestershire
- MMOC Member: No
not really the time for spraying this weather/year unless you have heating in the garage overnight. you can't brush celly on big areas as it dosn't flow long enough, even when it is colder you will risk the chance of the paint blooming.also blooming can still affect synthetic as well, if someone has sprayed synthetic and its not bloomed then they were very lucky. if you used enamel /synthetic paint for brushing i would use a hamleton perfection plus , but remember a new brush needs priming first against a brick wall or a 80g sanding disc to get all the loose hairs from the head stock. if you wanted any help on spraying look on my thread in the sticky hint and tips section

smoke me a kipper skipper i'll be back for breakfast