Author Topic: Woodland Scenics Realistic Water over foam base and the outgassing bubbles  (Read 952 times)

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wazzou

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I think FlexSeal is pretty expensive and a little overkill when Styrene will likely be just fine.
Bryan

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MK

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Heavy Duty aluminum foil would be thicker.

Chris333

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a 2x4' sheet of 1/8" Masonite costs less than a 8.5x11" sheet of styrene, just sayin'.

wazzou

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a 2x4' sheet of 1/8" Masonite costs less than a 8.5x11" sheet of styrene, just sayin'.


How about a For Sale sign?   :D
Bryan

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Dave V

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All excellent points!
Silver San Juan Scenic Line

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Chris333

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But how do the gases affect styrene  :-X  :trollface:

Dave V

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But how do the gases affect styrene  :-X  :trollface:

Dunno!  One hopes it can't penetrate styrene.  But then again hope is not a strategy.
Silver San Juan Scenic Line

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Chris333

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Just kidding, but don't use foam.

wazzou

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But how do the gases affect styrene  :-X  :trollface:



The lable said 99.9% safe.    ;)
Bryan

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MK

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What's the other 0.01%?   :trollface:

dem34

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+1
What's the other 0.01%?   :trollface:

Resonance Cascade.

 :trollface:
-Al

LIRR

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Use a piece of 1/8 plywood over the foam as a riverbed...sand smooth and paint. I’ve had the WS product on plywood in 2 locations for a couple of years without any problems

Dave V

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Not sure when I'm going to start benchwork (before August is through though...I want to do the work in the garage and winter will be here in about 7 weeks) but I'm now planning on using some kind of barrier, wither veneer ply, Masonite, or styrene.  As my Virginia-raised wife would say, "ya'll've made a compelling case."
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jon612

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I'm curious if your problem might be related to the adhesive you are using to secure the foam (extruded polystyrene?)

Most adhesives that come in a tube are not ideal for bonding 2 pieces of polystyrene together. If it stays wet in tube, it will stay wet between the foam for a long time, slowly releasing gas. Most of the adhesives in a tube have a shelf life/ expiration date for this reason. It will dry out but never properly cure.

Dave V

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I'm curious if your problem might be related to the adhesive you are using to secure the foam (extruded polystyrene?)

Most adhesives that come in a tube are not ideal for bonding 2 pieces of polystyrene together. If it stays wet in tube, it will stay wet between the foam for a long time, slowly releasing gas. Most of the adhesives in a tube have a shelf life/ expiration date for this reason. It will dry out but never properly cure.

This isn't an issue.  I use foam-compatible construction adhesive only.  Plus it happens in areas where I specifically haven't used adhesive either because the water channel is only part way dug into a 2" slab of foam or because I deliberately left an area unglued in anticipation of it serving as a water surface.
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