Hai Guyz
I've googled for ages, with no success... I need to be able to give a model i'm making a near mirror metalic reflective finish, the catch is it's made from this soft utherene cast like material, forgotton the name, looks like mdf but doesn't split. It's easy to get smooth, but what resin/laquer could I try to use to get that look, if it's even possible? Thought maybe someone might know. _________________ ( •_•)
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
That's a tough challenge! You need something like electroplating; I would try to find out how consumer gadgets get a shiny coating on plastic parts. Googling "plastic electroplating" brings up a ton of links!
Tue Aug 18, 2009 8:30 pm
Spockie-Tech Site Admin
Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia
Vacuum deposition is the tech I think
Try googling "Plastic Chroming"
If you find someone who does it locally for small runs, let me know please, I have some items I would like to get done too, but its too small an order for most of the places to be bothered with I would imagine, some bezel surrounds for nixie tubes _________________ Great minds discuss ideas. Average minds discuss events. Small minds discuss people
Tue Aug 18, 2009 9:16 pm
Glen Experienced Roboteer
Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
a few guys have spray painted there plastic pocket bike fairings with chrome paint. it comes out looking pretty good.
Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW
For a home-grown option, Bunnings sell a product called "liquid Glass". It is a 2 part resin meant to give table tops a smooth & shiny surface. You could pour on a layer or two of that, then spray paint it with chrome paint. Do a test first to see if you can add a top coat of the Liquid Glass for a extra shine and toughness.
Tue Aug 18, 2009 9:36 pm
Glen Experienced Roboteer
Joined: 16 Jun 2004
Posts: 9481
Location: Where you least expect
Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia
Re Chrome Paint
My experience with it in the past is that it looks reasonably good when first painted (still not highly reflective like chrome though), but left to itself, it quickly goes dull and just looks like silver/grey paint.. a layer of clear *might* help stop that. _________________ Great minds discuss ideas. Average minds discuss events. Small minds discuss people
Tue Aug 18, 2009 10:52 pm
dyrodium Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
hmm I'll try to get my hands on that stuff Nick, sounds like the ticket to getting a smooth surface! I think chrome paint might well do it in that case, it only needs to look good for about a week..
The material is this:
http://www.designophy.com/uploadedimages/tmn/2009/01/20/12.jpg
They're a polyurethane based block material, under a variety of brand names. _________________ ( •_•)
I ended up fine polishing PVC rod and using chrome spray paint, came up rather nicely actualy!
Used ali for the centerpiece though, nothing beats a metallic finish than real metal...
Now onto another annoying question, probably Chris will be able to help with this one, I need to get hold of some wood veneers, make a models material look like woodgrain with a thin overlay of real wood. Apparently you can get it down to paper thickness or something, if I could find a non-useless Australian company that is... _________________ ( •_•)
Joined: 30 Sep 2006
Posts: 673
Location: Perth, Western Australia
Bunnings sells wood veneer, I think $40 for a 500mmx500mm sheet.
My dad used balsa wood when he needed cheep wood veneer. It worked fairly well. _________________ They say that he crossed the fine line, from insanity to genius.
Thu Sep 03, 2009 12:07 am
Valen Experienced Roboteer
Joined: 07 Jul 2004
Posts: 4436
Location: Sydney
how real does it have to look?
you can get "contact" in wood grain if you want it, its just printed. should be a few $ _________________ Mechanical engineers build weapons, civil engineers build targets
Thu Sep 03, 2009 12:24 am
dyrodium Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
Ended up using balsa wood for time reasons, plus it was $2...
Not quite finished, needs a screen still. This accurate sh*t is so hard....
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