Gray Foam Seal Found on Ram Air induction Systems-How 2

[69NovaYenko]

Do any of you outstandingly resourceful folks have any suggestions on how to replicate the gray foam that was used to seal the ram air induction systems found on some of the 60ties thru 70ties muscle cars. And, by the way, what is the official nomenclature for this foam.

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[oldnslow]

I use the styrofoam egg carton material , just cut out the piece and paint it gray/black to suit your needs .

[Classicgas]

7 hours ago, oldnslow said:

I use the styrofoam egg carton material , just cut out the piece and paint it gray/black to suit your needs .

Make sure to use acrylic paint. Solvent based paints may melt the styrofoam.

Edited April 9, 2019 by Classicgas

[Bainford]

I use Styrofoam meat packing tray material from the grocery store. Sometimes the trays are black, a grayish black actually, which is perfect for this application.

[Matt Bacon]

You can buy sheets of flexible, dense “craft foam” from hobby stores in different thicknesses. It cuts easily and smoothly with a hobby knife or compass cutter, and comes in dozens of colours including black and gray. Glue it with white PVA, wood glue or Formula 560. 

This in the UK, but I’m sure Hobby Lobby or somewhere does the same stuff in the US:

https://www.hobbycraft.co.uk/kids/kids-craft-supplies/kids-foam-sheets-and-shapes

best,

M.

[StevenGuthmiller]

Personally, I would just cut them from styrene sheet and paint them.

For as often as a guy would need a special material for this sort of thing, I don't see much point in spending the extra money on materials that you will rarely use.

My shop is full to the gills with too many materials as is.

 

Steve

[Matt Bacon]

Well, if your teenage daughter runs a junior Girl Scouts unit for 5-7 year olds, craft foam is pretty easy to come by ;-P

best,

M.

[69NovaYenko]

Thanks one and all for the replies and suggestions. :-)

[Brutalform]

On 4/9/2019 at 12:56 PM, StevenGuthmiller said:

Personally, I would just cut them from styrene sheet and paint them.

For as often as a guy would need a special material for this sort of thing, I don't see much point in spending the extra money on materials that you will rarely use.

My shop is full to the gills with too many materials as is.

 

Steve

I agree. And using Tamiya “rubber black” paint will make them look real.