UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > General Vintage Technology > Cabinet and Chassis Restoration and Refinishing

Notices

Cabinet and Chassis Restoration and Refinishing For help with cabinet or chassis restoration (non-electrical), please leave a message here.

Closed Thread
 
Thread Tools
Old 11th Aug 2018, 11:14 pm   #1
Michael Maurice
Moderator
 
Michael Maurice's Avatar
 
Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 5,625
Default Can one spray rexine?

I am restoring a Bush SRP30 which has been stored in a loft for a few decades, the top which should be a light grey has gone yellow/brown.

I was thinking of spraying it with light grey plastikote www.plasti-Kote.co.uk

Has anyone ever done this? Is it likely to work?
__________________
Forum Moderator

http://www.michaelmauricerepairs.co.uk/
Michael Maurice is offline  
Old 12th Aug 2018, 8:32 am   #2
vidjoman
Nonode
 
Join Date: Jun 2013
Location: East Sussex, UK.
Posts: 2,145
Default Re: Can one spray rexine?

I've recently tried spraying but it wasn't very successful. Looked blotchy. Best finish I got was to use a satin finish paint (not emulsion) 2 coats applied with a small roller.
vidjoman is online now  
Old 12th Aug 2018, 8:57 am   #3
dseymo1
Dekatron
 
Join Date: Dec 2007
Location: Shropshire, UK.
Posts: 3,052
Default Re: Can one spray rexine?

I haven't tried it on Rexine, But Wilko 'Outdoors' paint seems to bond well to just about anything. I used it on some plastic bathroom tiles, following nothing but a wipe with thinners to degrease them, and it's still hanging in fine four years later despite the steam and soap.
dseymo1 is offline  
Old 12th Aug 2018, 10:08 am   #4
Argus25
Nonode
 
Argus25's Avatar
 
Join Date: Oct 2016
Location: Maroochydore, Queensland, Australia.
Posts: 2,206
Default Re: Can one spray rexine?

I have done this in the past but there are a couple of important considerations.

Firstly you can only get away with this if the rexine is bonded to the surface underneath. If there is a layer of latex or sponge under it , it leaves the surface too mobile and later with pressure the paint surface can crack.

The surface needs to be as clean and grease & wax free as possible, in the past somebody may have applied wax or polishing compounds. So clean the rexine thoroughly with contact cleaner (CO contact cleaner by Caig chemicals works well for degreasing in the absence of the wonderful but unobtainium Carbon tetra chloride). Some thinners by comparison are very aggressive.

Then the paint: I would not use anything other than the very fast setting fine spray automotive touch up spray lacquer that goes by the name Holts Dupli-color, in multiple colour types and small cans from the automotive suppliers like Repco or similar.

It sets very fast and unless it's grossly over applied, there is less time for the solvents to damage the surface too much and you can apply it in a couple of layers waiting about 10 min between coats. It will slightly etch into the surface though, but this helps it bond, but it's a one way process and once you commit to it, you will unlikely be able to clean it completely off once it's in the crevices. But hopefully there would be no need to.

I mentioned on another thread that this sort of paint is also very useful for restoring the surface of yellowed plastics (typically computer cases etc) to white using the color variant Arctic White.
Argus25 is offline  
Old 12th Aug 2018, 10:08 am   #5
Scimitar
Heptode
 
Scimitar's Avatar
 
Join Date: Oct 2015
Location: Gloucestershire, UK.
Posts: 515
Default Re: Can one spray rexine?

Vinylkote is what you need. Available in any colour including matched to a sample. It is designed for recolouring flexible plastics and becomes part of the material.
Scimitar is offline  
Old 12th Aug 2018, 10:16 am   #6
Station X
Moderator
 
Station X's Avatar
 
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 14,894
Default Re: Can one spray rexine?

I've had success using Meltonian type shoe cream.
__________________
Graham. Forum Moderator

Keep the soldering iron hot.
Station X is online now  
Old 12th Aug 2018, 10:22 am   #7
David G4EBT
Dekatron
 
David G4EBT's Avatar
 
Join Date: Feb 2003
Location: Cottingham, East Yorkshire, UK.
Posts: 3,672
Default Re: Can one spray rexine?

Vinylkote sounds like the way to go, but I wouldn't spray either cellulose or acrylic gloss paint directly onto any surface without first using an acid etch primer, which promotes good adhesion to both the surface to be painted, and to the top coat. Two acid etch primers seem to find favour, namely, 'Autotek Pro' and U-Pol 'Acid8'. Of course, the costs soon start to mount up:

https://www.ebay.co.uk/p/1-X-Autotek...d=152435790444

https://www.ebay.co.uk/itm/U-pol-Aci...-/201487926803

No doubt whatever you choose, you'll want to try it on the underside of the SP30 to check if it gives the desired result, remembering - as always - that you can't put lipstick on a pig to make it look pretty.

Good luck with it Michael.
__________________
David.
BVWS Member.
G-QRP Club member 1339.
David G4EBT is online now  
Old 12th Aug 2018, 10:29 am   #8
Station X
Moderator
 
Station X's Avatar
 
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 14,894
Default Re: Can one spray rexine?

Why would you want to etch prime Rexine?
__________________
Graham. Forum Moderator

Keep the soldering iron hot.
Station X is online now  
Old 12th Aug 2018, 10:41 am   #9
Argus25
Nonode
 
Argus25's Avatar
 
Join Date: Oct 2016
Location: Maroochydore, Queensland, Australia.
Posts: 2,206
Default Re: Can one spray rexine?

I'm not sure if Vinylkoke is a similar product to Plasticoat. In the past I have had difficulties with products claiming to be suited to coating plastics. The ones I have tried the paint sticks to itself very well, but not to the surface underneath. So it tends to peel off in sheets. Perhaps this is why an etch primer has been suggested.

With the Holts product I suggested it will micro etch the surface (provided it's degreased) But I have not actually tried Vinylcoat and I agree with David's remark to try some on a test area. With the Holts you can spray it into a glass jar and apply it with a small brush to a test area, but it will be thicker and take longer to set than with a careful spray.
Argus25 is offline  
Old 12th Aug 2018, 12:07 pm   #10
Radio Wrangler
Dekatron
 
Radio Wrangler's Avatar
 
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 12,233
Default Re: Can one spray rexine?

Getting it to adhere or bond is one thing, liking the result is another. If it turns out glossy, it could look rather nasty - like someone had given it a quick coat of domestic gloss paint. New rexine is probably the only good way out.

David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
Radio Wrangler is offline  
Old 12th Aug 2018, 3:13 pm   #11
vidjoman
Nonode
 
Join Date: Jun 2013
Location: East Sussex, UK.
Posts: 2,145
Default Re: Can one spray rexine?

Here are pictures of one I did about a month ago with a roller and B & Q Flame satin paint. Colour is slightly off because of fluorescent lighting.
Click image for larger version

Name:	IMG_1998s.jpg
Views:	160
Size:	70.8 KB
ID:	167429Click image for larger version

Name:	IMG_2004s.jpg
Views:	171
Size:	61.9 KB
ID:	167430Click image for larger version

Name:	IMG_2001s.jpg
Views:	163
Size:	154.8 KB
ID:	167431
vidjoman is online now  
Old 12th Aug 2018, 3:17 pm   #12
TimLiggins
Triode
 
Join Date: Oct 2016
Location: York, North Yorkshire, UK.
Posts: 42
Default Re: Can one spray rexine?

Vinyl Dye, used for recolouring car upholstery.
TimLiggins is offline  
Old 12th Aug 2018, 4:29 pm   #13
Radio Wrangler
Dekatron
 
Radio Wrangler's Avatar
 
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 12,233
Default Re: Can one spray rexine?

That's OK. The satin paint is crucial, I think.

David
__________________
Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
Radio Wrangler is offline  
Old 12th Aug 2018, 5:44 pm   #14
music-centre
Hexode
 
Join Date: Sep 2007
Location: Brentwood, Essex, UK.
Posts: 489
Default Re: Can one spray rexine?

Quote:
Originally Posted by TimLiggins View Post
Vinyl Dye, used for recolouring car upholstery.
I recoloured a vinyl seat in a car some years ago when I couldn't locate the correct colour to match the rest of the interior and it was very successful, it was the drivers seat so got quite a bit of wear but didn't crack or anything.
I cant remember the manufacturer unfortunately but it was a product designed to do this.

Steve.
music-centre is offline  
Old 12th Aug 2018, 10:45 pm   #15
nebogipfel
Pentode
 
nebogipfel's Avatar
 
Join Date: Oct 2008
Location: Downham Market, Norfolk, UK.
Posts: 143
Default Re: Can one spray rexine?

Quote:
Originally Posted by Scimitar View Post
Vinylkote is what you need. Available in any colour including matched to a sample. It is designed for recolouring flexible plastics and becomes part of the material.
Agreed. I have used it to change the colour of the seats in a Morris Minor. The seats were changed from red to blue and the result was a very authentic and durable finish. If you use the version designed for flexible vinyl it bonds to the actual material and will not scratch or rub off. I have also used black to refresh vinyl in cars with very good results.
__________________
Regards, John.
nebogipfel is offline  
Old 12th Aug 2018, 10:54 pm   #16
PJL
Dekatron
 
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 4,157
Default Re: Can one spray rexine?

Good quality acrylic artist paint works well and should last a lifetime. I just rub it on with a damp cotton wool pad. 'Crimson' red is a good match for Roberts radios.
PJL is online now  
Old 13th Aug 2018, 10:01 am   #17
David G4EBT
Dekatron
 
David G4EBT's Avatar
 
Join Date: Feb 2003
Location: Cottingham, East Yorkshire, UK.
Posts: 3,672
Default Re: Can one spray rexine?

Quote:
Originally Posted by Station X View Post
Why would you want to etch prime Rexine?
For the reason stated earlier - to promote good adhesion.

Clearly Rexine is a finished product not designed to be painted, so I don't think that paint without a primer, would adhere well, any more than it does to other substrates. If the maker's claims are to be believed, it has good flexibility too, but of course, the maker's don't claim that it's suitable to apply it to Rexine - that's just my considered opinion, but only if spray paint is to be used. If there is a product that's intended for such purposes - and it seems that there is, ('Vinylkote'), it seems to make sense to use that, which is why I prefaced my post with: 'Vinylkote sounds like the way to go'.

Aside from that - albeit not relevant to Rexine - I use Autotek acid etch primer or U-Pol 'Acid 8' on any bare surface before spraying a top coat. It's excellent as a primer on repaired Bakelite cabinets, and on aluminium, whether sheet or die-cast, prior to spraying, and it's not fussy what type of top coat is used.

Here are the maker's stated features:

Adhesion to bare, galvanised and zinc coated steel
Also suitable for applications to aluminium, fully cured paint finishes, GRP and most rigid plastics
Suitable for acrylic , cellulose and 2-pack paints
Highly flexible and designed to fill slight cracks and indentations

It's used as a primer by modelmakers, who - for example - build brass sheet railway carriages:

http://www.rmweb.co.uk/community/ind...0-etch-primer/
__________________
David.
BVWS Member.
G-QRP Club member 1339.
David G4EBT is online now  
Old 13th Aug 2018, 10:05 am   #18
Station X
Moderator
 
Station X's Avatar
 
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 14,894
Default Re: Can one spray rexine?

Quote:
Originally Posted by David G4EBT View Post
Quote:
Originally Posted by Station X View Post
Why would you want to etch prime Rexine?
It's used as a primer by modelmakers, who - for example - build brass sheet railway carriages:

http://www.rmweb.co.uk/community/ind...0-etch-primer/

I use it for something similar. It chemically dissolves the surface of the brass, which makes me wonder what effect it would have on Rexine.
__________________
Graham. Forum Moderator

Keep the soldering iron hot.
Station X is online now  
Old 13th Aug 2018, 11:00 am   #19
Scimitar
Heptode
 
Scimitar's Avatar
 
Join Date: Oct 2015
Location: Gloucestershire, UK.
Posts: 515
Default Re: Can one spray rexine?

Etch primers were the product of choice, but have been largely superceded by epoxy primers. They are waterproof, inert, non isocyanate and will cling far better than etch primers or anthing else. I use Lechler 29107 for all priming duties now. It will not react with any top coat of your choice.
Scimitar is offline  
Old 13th Aug 2018, 12:54 pm   #20
poppydog
Heptode
 
Join Date: Oct 2015
Location: Cornwall, UK.
Posts: 549
Default Re: Can one spray rexine?

If anything you are using contains butanone and also remains elastic when cured, it should be ok. I have seen some cabinet/casings that have been repainted that seem to replicate the "tyre paint look" though

regards poppydog
poppydog is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 7:43 pm.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright ©2002 - 2019, Paul Stenning.