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General Modelling Forum => Tips, Tools, and Techniques => Topic started by: PR19_Kit on September 03, 2024, 09:32:19 AM

Title: How do you 'sandwich' a panel?
Post by: PR19_Kit on September 03, 2024, 09:32:19 AM
I've started on a new build (Yeah, I know, that'll be #67 I think............) and the panels are made from two layers of PE with a printed film that's meant to go in between them, but what are you supposed to glue them all together with?

Surely superglue will craze the film like it does canopies, won't it? And styrene cement won't touch the PE of course.
Title: Re: How do you 'sandwich' a panel?
Post by: kerick on September 03, 2024, 09:40:14 AM
What about small dots of silicone adhesive? Once you get it positioned as you want it don't touch it for 24 hours.
Title: Re: How do you 'sandwich' a panel?
Post by: Gondor on September 03, 2024, 10:39:21 AM
PVA, the PE should stay as folded, if it is folded, otherwise, the whole assembly which I assume is the instrument panel will not be moving. Superglue to hole the rear part against plastic if you want but I use PVA, or equivalent.

Gondor

EDIT: I am sure I covered this when I wrote about working with Photo Etch, though these days I cant remember if I have forgotten anything
Title: Re: How do you 'sandwich' a panel?
Post by: The Rat on September 03, 2024, 01:40:22 PM
I've heard of people using Future, or whatever it's called over there.
Title: Re: How do you 'sandwich' a panel?
Post by: frank2056 on September 03, 2024, 01:41:52 PM
PVA for sure. I have a bottle of Ultra Glue (https://www.migjimenez.com/en/auxiliary-products-glues/1935-ultra-glue-for-etch-clear-parts-more-acrylic-waterbase-glue-amig-2031.html) and it works well. It also dries clear, so you get a free transparency if used to glue together an instrument panel.
Title: Re: How do you 'sandwich' a panel?
Post by: PR19_Kit on September 03, 2024, 02:44:22 PM
Ah magic, thanks gentlemen, I have PVA and Klear to hand.  :thumbsup:
Title: Re: How do you 'sandwich' a panel?
Post by: Rick Lowe on September 03, 2024, 09:24:35 PM
How would UV setting clear resin do? Though I don't know if it will yellow over time...
Title: Re: How do you 'sandwich' a panel?
Post by: frank2056 on September 03, 2024, 09:37:18 PM
Some (most?) UV cure resins, at least the 3D printer type, will yellow. You can buy resin that resists yellowing, or you can add a little bit of blue coloring.

Curing the resin in the middle of the panel (where it would be hard to illuminate) would be tough and uncured resin will eventually leak out,
Title: Re: How do you 'sandwich' a panel?
Post by: Rick Lowe on September 03, 2024, 09:39:55 PM
True; not the best idea, then.
Title: Re: How do you 'sandwich' a panel?
Post by: Wardukw on September 03, 2024, 11:04:25 PM
Fast setting 2 part epoxy resin ..the crystal clear type ..ive used it dozens of times on PE ..works a absolute treat ..PVA will hold PE but not with real strength..ya gotta be very delicate with it .
I seen gloss varnish used for this as well ..never tried it myself but varnish is very sticky and is definitely stronger than PVA .
You can get a CA glue now just for clear parts ..ive got to remember to get some .
Title: Re: How do you 'sandwich' a panel?
Post by: Old Wombat on September 04, 2024, 12:37:11 AM
I'm pretty sure the film doesn't react to CA the way styrene does.

I've used CA on PE- &-film cockpit panels before with no visible effect (except the odd finger print :rolleyes: ) that I've noticed,



(https://substackcdn.com/image/fetch/f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fdd51f4c9-899c-48b7-98ab-b2d8421554ab_918x881.jpeg)
Title: Re: How do you 'sandwich' a panel?
Post by: NARSES2 on September 04, 2024, 06:00:31 AM
I use Klear for 3 part panels, although nowadays I tend to use Peewit's panels which are a single piece.

Oops should have said Yahu, not Peewit  :banghead:
Title: Re: How do you 'sandwich' a panel?
Post by: Gondor on September 04, 2024, 07:24:39 AM
Two slices of bread  :rolleyes:  ;D  :mellow:

Title: Re: How do you 'sandwich' a panel?
Post by: Old Wombat on September 04, 2024, 08:21:49 AM
Quote from: NARSES2 on September 04, 2024, 06:00:31 AMI use Klear for 3 part panels, although nowadays I tend to use Peewit's panels which are a single piece.

Gone away from Yahu? :unsure:
Title: Re: How do you 'sandwich' a panel?
Post by: Dizzyfugu on September 04, 2024, 09:14:33 AM
I use simple acrylic gloss varnish for this kind of stunts.
Title: Re: How do you 'sandwich' a panel?
Post by: NARSES2 on September 05, 2024, 12:34:12 AM
Quote from: Old Wombat on September 04, 2024, 08:21:49 AM
Quote from: NARSES2 on September 04, 2024, 06:00:31 AMI use Klear for 3 part panels, although nowadays I tend to use Peewit's panels which are a single piece.

Gone away from Yahu? :unsure:

Sorry I meant Yahu  :banghead:  Was looking at some Peewit masks earlier in the afternoon, and you know what us old folks are like  :angel:
Title: Re: How do you 'sandwich' a panel?
Post by: Rick Lowe on September 05, 2024, 12:47:57 AM
Quote from: NARSES2 on September 05, 2024, 12:34:12 AM
Quote from: Old Wombat on September 04, 2024, 08:21:49 AM
Quote from: NARSES2 on September 04, 2024, 06:00:31 AMI use Klear for 3 part panels, although nowadays I tend to use Peewit's panels which are a single piece.

Gone away from Yahu? :unsure:

Sorry I meant Yahu  :banghead:  Was looking at some Peewit masks earlier in the afternoon, and you know what us old folks are like  :angel:

What? Speak up, Man - stop mumbling! Hey! You darn meddling kids git offa my lawn! ;D
Title: Re: How do you 'sandwich' a panel?
Post by: NARSES2 on September 05, 2024, 01:02:44 AM
Quote from: Rick Lowe on September 05, 2024, 12:47:57 AM
Quote from: NARSES2 on September 05, 2024, 12:34:12 AM
Quote from: Old Wombat on September 04, 2024, 08:21:49 AM
Quote from: NARSES2 on September 04, 2024, 06:00:31 AMI use Klear for 3 part panels, although nowadays I tend to use Peewit's panels which are a single piece.

Gone away from Yahu? :unsure:

Sorry I meant Yahu  :banghead:  Was looking at some Peewit masks earlier in the afternoon, and you know what us old folks are like  :angel:

What? Speak up, Man - stop mumbling! Hey! You darn meddling kids git offa my lawn! ;D

Wasn't that a Billy Ocean song ?  :angel:
Title: Re: How do you 'sandwich' a panel?
Post by: Rick Lowe on September 05, 2024, 01:16:47 AM
Quote from: NARSES2 on September 05, 2024, 01:02:44 AM
Quote from: Rick Lowe on September 05, 2024, 12:47:57 AM
Quote from: NARSES2 on September 05, 2024, 12:34:12 AM
Quote from: Old Wombat on September 04, 2024, 08:21:49 AM
Quote from: NARSES2 on September 04, 2024, 06:00:31 AMI use Klear for 3 part panels, although nowadays I tend to use Peewit's panels which are a single piece.

Gone away from Yahu? :unsure:

Sorry I meant Yahu  :banghead:  Was looking at some Peewit masks earlier in the afternoon, and you know what us old folks are like  :angel:

What? Speak up, Man - stop mumbling! Hey! You darn meddling kids git offa my lawn! ;D

Wasn't that a Billy Ocean song ?  :angel:

Probly, can't quite recall...  ;D
Title: Re: How do you 'sandwich' a panel?
Post by: PR19_Kit on September 09, 2024, 08:27:44 AM
Well I've tried using Klear to attach the film to the PE and the styrene parts, and I'm afraid it didn't work worth a light.  :(

After an hour's drying time they just all fell apart, so I've switched to using gel superglue and I'll see how that works. As the panel glued itself to my finger in the process I suspect it may work a bit better.....

Oh yes, another thing. Once I've got the film gauges in place and the PE panel with the holes in it glued on top of it, how the devil do I paint the PE bit without the paint filling the holes up?  :banghead:
Title: Re: How do you 'sandwich' a panel?
Post by: Old Wombat on September 09, 2024, 08:58:14 AM
Quote from: PR19_Kit on September 09, 2024, 08:27:44 AMWell I've tried using Klear to attach the film to the PE and the styrene parts, and I'm afraid it didn't work worth a light.  :(

After an hour's drying time they just all fell apart, so I've switched to using gel superglue and I'll see how that works. As the panel glued itself to my finger in the process I suspect it may work a bit better.....

Oh yes, another thing. Once I've got the film gauges in place and the PE panel with the holes in it glued on top of it, how the devil do I paint the PE bit without the paint filling the holes up?  :banghead:

By using a different order of construction & painting the panel first.
Title: Re: How do you 'sandwich' a panel?
Post by: PR19_Kit on September 09, 2024, 10:09:22 AM
It's a bit difficult when it's already assembled...............

And trying to assemble it AFTER I'd painted it would be equally difficult as the darn thing's so small it'd be impossible without getting glue on the front face itself. As it is I've had to sand the excess glue off it already.
Title: Re: How do you 'sandwich' a panel?
Post by: Rick Lowe on September 09, 2024, 10:11:51 PM
Use your Handy, Dandy 'Gnat's Whisker' Brush.

All kidding aside, that's probably about your best option. (do brushes come in 'Sub-Millimeter gauge?)
And if you use acrylic, you should be able to clean the acetate without it going all misty.

Probably not much help, but it's the end of a long day, the second one back after a week off and I'm feeling it a bit...
Title: Re: How do you 'sandwich' a panel?
Post by: Wardukw on September 10, 2024, 01:51:24 AM
Quote from: Rick Lowe on September 09, 2024, 10:11:51 PMUse your Handy, Dandy 'Gnat's Whisker' Brush.

All kidding aside, that's probably about your best option. (do brushes come in 'Sub-Millimeter gauge?)
And if you use acrylic, you should be able to clean the acetate without it going all misty.

Probably not much help, but it's the end of a long day, the second one back after a week off and I'm feeling it a bit...
You can get 10/0 brushes Rick ..da Vinci brand ..from Gordon Harris  :thumbsup:
Title: Re: How do you 'sandwich' a panel?
Post by: NARSES2 on September 10, 2024, 05:28:06 AM
I know it's to late now Kit, but I paint the front face, then clear any blocked "holes" with a pin head and then proceed to sandwhich the 3 parts. I didn't have any problems using Klear as long as the rear plastic face was painted with a matt coat then the "Klear" had something to grip onto.

Not done it for a while though, all my recent panels have been single piece etch.
Title: Re: How do you 'sandwich' a panel?
Post by: PR19_Kit on September 10, 2024, 05:37:00 AM
It's not turned out too bad Chris, at least the larger part that survived anyway.

Pics of it are on my He-119 thread.
Title: Re: How do you 'sandwich' a panel?
Post by: NARSES2 on September 10, 2024, 05:51:33 AM
Quote from: PR19_Kit on September 10, 2024, 05:37:00 AMIt's not turned out too bad Chris, at least the larger part that survived anyway.

Pics of it are on my He-119 thread.

Just seen them mate, and as you sat once the canopy goes on  ;)