Horwood Brothers Gas, Oil and Service - Rail Scale Miniatures.

[ACL1504]

Tom

Great to see you back in the train room!!!

Here is my 2 cents on the curling / separation issue that you had.  When you had the train room closed up the materials saw temperatures / humidity changes that it didn't normally see when you were in the room all the time.

Every one of the materials you are using expands and contracts with temperature and humidity. When you glue a material like foam to a material like plywood the material that is not expanding as much tries to keep the material that is expanding more from expanding.  This makes the material sandwich curl. To make this more complicated the glue joint is expanding or contracting differently than the plywood and the foam.  I use the same construction but I brake the plywood into smaller pieces 18 inches by 36 inches is a big piece.  I glue the foam onto the plywood but I use smaller pieces of foam which gives me expansions joints. If you ever have one of the expansion joints show through to the topside scenery, use the Howard Zane cover it with a bush or scenery technique.

Okay that's all I got for 2 cents.  Give me a call if you want to dive into this deeper.

John

John,

What you said does make sense but it isn't the case here. I've clo0sed the train room for longer than this time with no issues. Also, I've had larger areas in the past glued and they never separated like this one.

My only guess is that I didn't allow enough time between the foam and cardboard gluing to thoroughly cure.

Thanks for the comments and for following along.

Tom

[ACL1504]

Good luck Tom.

Thanks Butty. It will all be well.

Tom

[ACL1504]

Tom, two weeks should be more than enough time to remove the books.

Rick,

Yes, I agree the two weeks was certainly more than enough time.

I just had no energy to work or remove the books. They are still on the foam. 

Tom

[ACL1504]

I think your safe on the book removal; hope it holds this time.

Larry, 

It is now almost a month and they are still on the foam. Just to damn tired with no energy to remove them at this time.

Tom

[ACL1504]

Sometimes it's one step forward and 2 steps back.....great job solving your latest problem. 

Greg,

Thanks but in my case at this time, it's one step forward and then nap time. 

I know this to shall pass.

Tom

[S&S RR]

Tom

Hoping to hear about your new found energy! You are in my thoughts and prayers, my friend.

[ACL1504]

Tom

Hoping to hear about your new found energy! You are in my thoughts and prayers, my friend.

John,

Thank you very much my friend. My energy comes in bunches like bananas. I may have a bunch or just a few. 

Thanks for che3cking in on the build.

Tom

[deemery]

Tom

Hoping to hear about your new found energy! You are in my thoughts and prayers, my friend.

John,

Thank you very much my friend. My energy comes in bunches like bananas. I may have a bunch or just a few. 

Thanks for che3cking in on the build.

Tom

I'm sure there's a monkey joke in there somewhere!

dave

[ACL1504]

Tom

Hoping to hear about your new found energy! You are in my thoughts and prayers, my friend.

John,

Thank you very much my friend. My energy comes in bunches like bananas. I may have a bunch or just a few. 

Thanks for che3cking in on the build.

Tom

I'm sure there's a monkey joke in there somewhere!

dave

Dave,

If there is, I don't know one.

Tom

[ACL1504]

Well I posted an update but it went to cyber space I guess. I'll try again.

Today, I actually did some work on the Horwood Bros. site. I removed the books after a month and glued down the other half of the pink foam. I placed the books on that half to hold the foam until it dries. I won't wait a month this time to remove them.

This was my last piece of the Owens Corning 1/4" pink foam. I Home Depot says they sell it but it is never in stock. I called Owens in Toledo, OH and was told they no longer offer it in 1/4". Bummer. I need to find some old stock or an alternative. I can live without it but prefer not to do so.

[PRR Modeler]

It's great to see you posting on a build thread again Tom.

[Jerry]

Good thing you like to read.  The books came in handy!! 

Nice to see you back on this build.

Jerry

[Vietnam Seabee]

Tom.. I sent you a text regarding 1/4" pink OC foam available and Menards (home depot/lowes) and appears to be UPS-able

Terry

[Philip]

   Good seeing you in the shop!

[Pennman]

Tom,

It's great to see you back again.
That's a bummer regarding the pink foam.
Upon a search tonight, I see that one store in New York State, about a 20 minute
ride for me, has 19 - 1/4" x 4' x 50'  pink foam that is a "fan-fold" package for $64.00
I have no idea if they could ship it to you. The store is located in Olean, NY.
Good Luck !

Rich