Is XPS foam lighter then balsa?

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whodathunkit
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Is XPS foam lighter then balsa?

Post by whodathunkit »

Is XPS foam lighter then balsa?
If so is any one trying it for making there own light weight arrow fenders .
What type of automobile can be spelled the same forwards & backwards?
ironband
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Re: Is XPS foam lighter then balsa?

Post by ironband »

I'm working on a set right now (and here I thought I was being creative...)

It seems to cut and sand well, and as I understand it a thin layer of acrylic paint will serve to protect and strengthen them.
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whodathunkit
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Re: Is XPS foam lighter then balsa?

Post by whodathunkit »

Hay that's grate Ironband. got any pic's of them?

You're right it can be painted with water base acrylic or latex paints.
I don't know how well the white Krylon craft foam primer spary paint will work on it.
Do you know if a clear gloss water base polyurethane spay paint can be spayed on it as well?

Been doing some reading about XPS foam in RC airplane mags & thought it would work well for making light weight fenders!
But unsure of how well it paints up .. and or the resins that can be use as a hardener on it to make it hard like a plastic.
Still have lots to learn about it .. but would like to try it in my model making as well.
Last edited by whodathunkit on Wed Mar 06, 2019 7:44 pm, edited 1 time in total.
What type of automobile can be spelled the same forwards & backwards?
ironband
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Re: Is XPS foam lighter then balsa?

Post by ironband »

Yeah, tests with acrylic gloss paint have been less than satisfactory. However, I think some PVA and then urethane over that could be quite durable.
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whodathunkit
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Re: Is XPS foam lighter then balsa?

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When you say PVA .. are you talking about PVA glue ?
What type of automobile can be spelled the same forwards & backwards?
ironband
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Re: Is XPS foam lighter then balsa?

Post by ironband »

Yeah, basically Modge Podge or White glue watered down.

I haven't finished a set yet to take pics of, but when I have something pic worthy I'll throw it up.
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whodathunkit
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Re: Is XPS foam lighter then balsa?

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Thank's i'll enjoy seeing them!
What type of automobile can be spelled the same forwards & backwards?
ironband
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Re: Is XPS foam lighter then balsa?

Post by ironband »

Image

They're coming along.
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whodathunkit
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Re: Is XPS foam lighter then balsa?

Post by whodathunkit »

WOW ironband !
Id say they were as well .. look'en really good! Thank's for the pic!

Seeing your scale in your pic .. reminds me I need to get a bigger one that will weigh over 25 oz for the rigs.
And is that 1 gram I'm seeing in read out on your scale?
What type of automobile can be spelled the same forwards & backwards?
ironband
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Re: Is XPS foam lighter then balsa?

Post by ironband »

No, sorry. Not that light :)

12.2g
ironband
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Re: Is XPS foam lighter then balsa?

Post by ironband »

Here they are in their final form.
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Re: Is XPS foam lighter then balsa?

Post by Eagle »

Looks like its in race form.
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Re: Is XPS foam lighter then balsa?

Post by Speedster »

Nice job. Fenders certainly do make them look like a race car.
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whodathunkit
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Re: Is XPS foam lighter then balsa?

Post by whodathunkit »

WOW they turned out look'n good!
Going to have to try this soon.. thanks for the tips!
What type of automobile can be spelled the same forwards & backwards?
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