Fillers and Glues for XPS

Loctite PL300 is designed for foam board,….works great..

Pat

@harmonyards posted:

Loctite PL300 is designed for foam board,….works great..

Pat

Does it also work as a sandable filler Pat?

John

@Craftech posted:

Does it also work as a sandable filler Pat?

John

I've used it for gluing, and it works very well in that role, but not explicitly for filling.  In my opinion it's a little too rubbery to sand effectively.

Mike

@Craftech posted:

Does it also work as a sandable filler Pat?

John

Why would you need a filler?…i thought the foam board itself was used as filler,….I’m in no means a layout builder, …AMOF, I paid to have mine done, but I do remember watching Al Judy when he built my hills, mounds, cliff sides, etc. he’d glue a hunk of green foam wherever he needed it, let it dry, then rasp file it to the shape he wanted,….I’m not disputing you needing filler, that’s just how I had seen it done….I remember having to buy 5-6 tubes of PL300 …..

Pat

@harmonyards posted:

Why would you need a filler?….

Pat

If you embed wire in the bottom of it tape doesn't stick to cover it so thus - a filler (for example).

John

Not sure what XPS foam is. I’m guessing it’s the stuff used in floral arrangements being green. If your applying a heavy dose of ground cover over it. I don’t know why it has to be smooth. It’s terrain. I do get you don’t want to see the gaps in the sections and may need a filler.

I have no experience using this. It came to be long after my scenery was done. Goggle Ground Goop. Plenty of info and videos on it.  You will get plenty of ways to mix it, color it and apply it. It’s a home brewed concoction that modeler Lou Sassi came up with.
Ron’s Trains and Things has a good You Tube video on applying it over foam.

@Craftech posted:

If you embed wire in the bottom of it tape doesn't stick to cover it so thus - a filler (for example).

John

John - would you explain more what you mean by 'embed wire in the bottom of it'

Typical pink foam I buy from Home Depot is moisture resistant XPS. To fill gaps between the pink foam and foam walls I fill in with plaster cloth and if need be add Scultpamold on top. If you have a really deep hole fill in with brown paper first.

@Joe Fauty posted:

John - would you explain more what you mean by 'embed wire in the bottom of it'

Portable layout

Run wire through hole from top

Cut groove in foam on bottom point to point

press wire into foam putting it below the surface

Come back up to top through other hole

Cover embedded wire on bottom with ??? to keep it in place and prevent damage

John

Try sculptamold, it obviously adheres well to XPS and is sandable.

Steve

@Rescued Trains posted:

Try sculptamold, it obviously adheres well to XPS and is sandable.

Steve

Thanks Steve,

I'll give it a shot.

John