UK Vintage Radio Repair and Restoration Discussion Forum

UK Vintage Radio Repair and Restoration Discussion Forum (https://www.vintage-radio.net/forum/index.php)
-   Cabinet and Chassis Restoration and Refinishing (https://www.vintage-radio.net/forum/forumdisplay.php?f=21)
-   -   Replacement perspex for Ever Ready model C/E (https://www.vintage-radio.net/forum/showthread.php?t=167223)

Rogermsw 26th May 2020 11:45 pm

Replacement perspex for Ever Ready model C/E
 
1 Attachment(s)
I have acquired a nice Ever Ready Model C/E, one problem the perspex outer is damaged.

Does anyone know where or who may have a replacement.

OR

Is there a way of repairing said perspex.

FIXITNOW 27th May 2020 7:17 am

Re: Replacement perspex for Ever Ready model C/E
 
info here on gluing and repairing
https://www.cutplasticsheeting.co.uk...crylic-cement/

the only other way is to make a mould and form a replacement

crackle 27th May 2020 8:27 am

Re: Replacement perspex for Ever Ready model C/E
 
I have used Loctite Glass bond and got a pretty well invisible joint, but I wouldn't like to trust it structurally on a handle.
When I used a proprietary acrylic glue I ended up with very fine bubbles which formed in the joint during the curing.
Maybe a fast cure in a slightly warm oven would have helped stop the bubbles forming.

Mike

Rogermsw 27th May 2020 3:00 pm

Re: Replacement perspex for Ever Ready model C/E
 
Many thanks gentlemen. Glue it is :)

Cobaltblue 27th May 2020 3:52 pm

Re: Replacement perspex for Ever Ready model C/E
 
Always keep an eye open these do turn up badly wormed with the paint badly peeled, the Perspex undamaged.

Glue is a great solution in the mean time.

Nice set probably built by Plessey the Cossor 469 has virtually identical chassis but the most hideous case ever used by a valve portable radio.

The Ever Ready model C series are great looking sets

Cheers

Mike T

Graham G3ZVT 29th May 2020 11:05 pm

Re: Replacement perspex for Ever Ready model C/E
 
2 Attachment(s)
Quote:

Originally Posted by crackle (Post 1252600)
I have used Loctite Glass bond and got a pretty well invisible joint, but I wouldn't like to trust it structurally on a handle.
When I used a proprietary acrylic glue I ended up with very fine bubbles which formed in the joint during the curing.
Maybe a fast cure in a slightly warm oven would have helped stop the bubbles forming.

Mike

Interesting you should mention Loctite Glass Bond Mike, it's a product I have used over the decades with great success.

Does it still exist though? I've been looking for it for a while.

Just to be clear, this is an empty tube of the product I mean.
Attachment 207183 Attachment 207184

Searches for Loctite Glass Bond seem only to find a product called "Loctite Super Glue Glass", which can't be the same product, for one thing GB needs UV light to cure and SGG does not.

David G4EBT 30th May 2020 10:40 am

Re: Replacement perspex for Ever Ready model C/E
 
Quote:

Originally Posted by rambo1152 (Post 1253812)
Quote:

Originally Posted by crackle (Post 1252600)
I have used Loctite Glass bond and got a pretty well invisible joint, but I wouldn't like to trust it structurally on a handle.
When I used a proprietary acrylic glue I ended up with very fine bubbles which formed in the joint during the curing.
Maybe a fast cure in a slightly warm oven would have helped stop the bubbles forming.

Mike

Interesting you should mention Loctite Glass Bond Mike, it's a product I have used over the decades with great success.

Does it still exist though? I've been looking for it for a while.

Just to be clear, this is an empty tube of the product I mean.
Attachment 207183 Attachment 207184

Searches for Loctite Glass Bond seem only to find a product called "Loctite Super Glue Glass", which can't be the same product, for one thing GB needs UV light to cure and SGG does not.

That's not actually correct - '"Loctite Super Glue Glass" is indeed triggered by UV light in normal daylight and the formula for normal cyanoacrylate ('CA') glue AKA 'superglue' differs from that used for glass bonding CA glues - it's n-Butyl cyanoacrylate.

Here's a clip:

Manufacturer's Description - Loctite - Glass Bond

Designed specifically for glass to glass or glass to metal applications.
Adhesive is triggered by UV rays in normal daylight.
Dishwasher safe………….………Use on items going in dishwasher.
Clear bond line, water and detergent resistant.

Size. 3ml Tube.

Technical Datasheet: https://dm.henkel-dam.com/is/content...-2018-04-10pdf

'Normal' CA glue is Ethyl cyanoacrylate. Limitations from Loctite 'Professional' CA datasheet:

Quote:

Does not bond to Polyethylene (PE), polypropylene (PP), polytetrafluoroethylene (PTFE), silicone or foam rubber, polystyrene foams, glass, or pure bone china ▪ Not for assemblies which will hold hot liquids ▪ Bonded items should not be placed in oven, microwave or dishwasher.

Unquote.

https://dm.henkel-dam.com/is/content...-2018-04-06pdf

CA glues aren't just the same stuff by different brands - cyanoacrylate formulae include methyl 2-cyanoacrylate (MCA), ethyl 2-cyanoacrylate (ECA is commonly sold under trade names such as "Super Glue", n-butyl cyanoacrylate (n-BCA), octyl cyanoacrylate and 2-octyl cyanoacrylate (used in medical, veterinary and first aid applications).

Vitalbond is the UK's largest producer of cyanoacrylate, which comes in 6 grades of viscosity and setting times of 4, 10, 20 and 45 seconds:

https://www.ebay.co.uk/itm/Vitalbond...72.m2749.l2649

For my purposes I use 20 seconds, but sometimes want it to cure in a matter of seconds so I use activator on one surface and glue on the other, which cures the glue instantly:

https://www.ebay.co.uk/itm/Glue-Mons...p2047675.l2557

I use 20 mG in a couple of months or so and could buy it much cheaper if I bought 50mG bottles, but while superglue has a shelf life of about a year, once opened, it lasts about 3 months, so buying a larger bottle is false economy.

Incidentally, Henkel is the name behind Loctite and many other well-known brands, such as Pritt, Sellotape, UniBond; Schwarzkopf, Right Guard, Dylon Dyes and Jeyes, and not lease, since 2000, Multicore solder!

None of which is a great deal of help to the OP but I hope it's of interest. (I think the normal adhesive for Perspex is 'Tensol').

crackle 31st May 2020 10:00 pm

Re: Replacement perspex for Ever Ready model C/E
 
Quote:

Originally Posted by David G4EBT (Post 1253922)
Quote:

Does not bond to Polyethylene (PE), polypropylene (PP), polytetrafluoroethylene (PTFE), silicone or foam rubber, polystyrene foams, glass, or pure bone china ▪ Not for assemblies which will hold hot liquids ▪ Bonded items should not be placed in oven, microwave or dishwasher.

Loctite Super Glue Glass
Eh does not bond glass, is that for real.

Mike

David G4EBT 31st May 2020 11:02 pm

Re: Replacement perspex for Ever Ready model C/E
 
Quote:

Originally Posted by crackle (Post 1254527)
Quote:

Originally Posted by David G4EBT (Post 1253922)
Quote:

Does not bond to Polyethylene (PE), polypropylene (PP), polytetrafluoroethylene (PTFE), silicone or foam rubber, polystyrene foams, glass, or pure bone china ▪ Not for assemblies which will hold hot liquids ▪ Bonded items should not be placed in oven, microwave or dishwasher.

Loctite Super Glue Glass
Eh does not bond glass, is that for real.

Mike

No that isn’t ‘for real’.

You’ve misunderstood the quote above, which referred to ‘normal CA’ glue, which is composed of ethyl cyanoacrylate - in the case I quoted, Loctite ‘Professional’. The point I was trying to make, though seemingly not very well, is that Loctite glass glue is indeed triggered by UV light and isn’t standard CA glue, but a different composition of n-Butyl Cyanoacrylate.

Hopefully if you re-read my post that will become clear.

Sorry for any confusion.

(If I was glueing Perspex I wouldn’’t use CA glass glue or any CA glue - I’d use Tensol, which is a bonding solvent for Perspex).

Cobaltblue 9th Jun 2020 4:59 pm

Re: Replacement perspex for Ever Ready model C/E
 
4 Attachment(s)
I am clearing some of my stores and found this Ever Ready model C perspex front it has a crack at the bottom (less visible than the top) it will need re painting however its FOC post at cost if you want it.

Cheers

Mike T


All times are GMT +1. The time now is 7:48 am.

Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.