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Old Feb 24, 2014, 08:16 PM
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Elmhurst, NY (Queens in NYC)
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New Product
Beacon Foam-Finish

I spent the last three days at the WRAM Show. Being a WRAM member it's an obligation. Like being a kid forced to spend Christmas in FAO Schwartz!

Not being a kid, I have a credit card and brought a wallet full of cash as well.

My flying buddy's daughter summed it up like this. "The retired men with discretionary money convention."

While I was there I picked up a bottle of Foam-Tac and watched a demo of Foam-Finish. It's a thick goop you spread on with a squeegee like a playing card or similar. It's too thick to go on with a brush but it thins with water. No, I didn't ask if you could thin it to brushable consistency. The first coat takes six or eight hours to fully dry but subsequent coats dry much faster. Apparently it is capable of soaking into the surface pores on the initial coat and that slows the drying of the first coat.

You sand between coats and wind up with a surface like glass! The surface is also slightly harder than straight foam. If you want a really hard surface you can lay 0.7 oz. glass cloth down and use Foam-Finish to hold it. That was not part of the demo but they had some samples where the job was incomplete so you could see glass cloth and how it's stuck down and finished with fine sanding. I'd guess the weight was negligible for most users.

I got a jar (wide mouth about 2.5" wide by 3.0" tall) and when I recuperate from three days of being on my feet for longer than I usually stay awake I'll give it a try. I've had a project in mind for months and I'm out of excuses.

Pete
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Last edited by PeteSchug; Feb 24, 2014 at 08:50 PM. Reason: More to say!
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Old Feb 24, 2014, 09:53 PM
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Pete,

Is it a Beacon product?

I don't see it on their website.

There are other products that can be used like this. One is Minwax water based Polycrylic finish and Pledge with Future floor wax.

Both can be thinned to reduce finished cured weight.
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Old Feb 24, 2014, 10:17 PM
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Eric called it Foam-Coat in this thread:

http://www.rcgroups.com/forums/showt...t#post27574961

I don't think he's a Beacon employee, though his website has sold Foam-Tac since it first came out on the market.

Glenn
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Old Feb 25, 2014, 12:45 AM
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Yes, it's a Beacon product and the jar that I have is marked so and called Foam-Finish.

They claim it's the lightest product that can fill the surface of various foams. I am not an expert but the samples and demo looked pretty good to me. They had foam floats that looked super and the samples included a few types of foam.

I'd love to give a personal report but it will have to wait until I can start a project I've been thinking about for a while.

Personally, I was impressed with what I saw.

Pete
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Old Feb 25, 2014, 12:47 AM
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Hmm...

Now I'm wondering if I can pre-finish the surface of a Depron sheet so I don't have to sand a flexy fuselage.

Pete
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Old Feb 25, 2014, 11:59 AM
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I noticed at the Local Industrial (and dilettante) Plastics Shop that they sell a product for painting onto foam that produces a glass smooth (dependent on applicator skills :-) hard surface. Fairly light , however that's a function of the thickness applied though.
It can also be used to make a several mm thick resin / glass cloth like shell as well... if so inclined.
As a guess I would think it's perhaps similar product ?
Apparently around for some time, according to the sales types.
Likely also several multiples cheaper than Beacon product, based on their 'pricing policies'
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Old Feb 25, 2014, 02:12 PM
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If you google Foam-Coat you'll see there are already products out there that appear to do a similar thing that Beacon's Foam-Finish does (as Bare has pointed out), but they're actually called Foam-Coat.

Perhaps they (Beacon) at first was going to use Foam-Coat (hence Eric's quote) but decided to change the name just to distinguish it from everything else with that same name.

Glenn
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Old Feb 26, 2014, 03:42 PM
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How does Foam-tac compare to UHU Por? I'd love a glue that is a bit thinner. I tried thinning UHU Por with white spirit but it doesn't work well.
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Old Feb 26, 2014, 04:39 PM
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I think it's a bit thinner. I prefer how it handles to Por.
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Old Feb 26, 2014, 04:49 PM
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Looks like it can't be sent by airmail so I guess I'm fortunate I have a stash of UHU Por.
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Old Feb 28, 2014, 03:21 AM
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You can thin UHU-Por. I used https://www.icaekangen24.se/pc-4256-...miskt-ren.aspx
Thank Lennart http://www.rcgroups.com/forums/showp...89&postcount=1
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Old Feb 28, 2014, 04:53 AM
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I tried that but it does seem to change the properties of the UHU Por and it doesn't stick as well.
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Old Feb 28, 2014, 03:41 PM
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hm.. i might not have thinned as much ad You then. just enought to make it a little easier to apply with a paintbrush.
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Old Mar 02, 2014, 11:06 AM
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foam-tac is my favorite glue. I thin it out when needed with dry cleaning fluid. works great and you can thin it alot and then put a tip on the bottle to glue more accurately.

it does not turn yellow and brittle like the welder's glue 3D flyers like to use on EPP and I like it better than UHU as it is readily available for me.
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Old Mar 02, 2014, 01:08 PM
I love my ID.
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The biggest difference between uhu por and foam was (is?) Foam tac melts pink foam but uhu por doesn't. Some years ago, I ruined one whole batch of floats I was making because of that. I am not sure if foam tac has same formular these days.
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