I’ve had very good luck sticking Chooch flexible cut stone walls to thin basswood and to masonite. I’ve just started using the timber crib versions on masonite and did get a little lifting at corners/seams where two panels meet. I used Zap A Gap superglue and so far has fixed the lifting corners.
I’ve found Chooch’s adhesive to work well with smooth sufaces but do wonder how permanent the adhesive will prove to be. (I’d sure like to know exactly WHAT adhesive it is!)
Glad to know of the hot glue/brads/track nail methods just in case, down the road. I do have to say that the lst Chooch Flexible walls stuck to the basswood (1/16" thick) panels has received tons of “abuse” getting moved and “tossed” about the layout over the last year and has remained in place. It’s a good product but nice to know of “fixes” down the road if needed.
For the OP, if there is no joy after trying “everything”, I’d recommend starting over with new flex walls and a new smooth mounting surface. The cut and random stone walls look about as convincing as the older resin versions when painted. The timber cribbing walls won’t fool anybody compared with scratchbuilt wood versions, but they’ll do for now.
Last weekend’s approach of cleaning the gaps (both surfaces) with solvents (a bit tedious with q-tips), sanding down to some bare (still rough) wood, and applying superglue gel seems to have worked. I suspect hot glue woule also have worked. Agree it’s quite a nice product. My first attempt was not the best.
Paul, don’t feel badly. I too wasted several wall sections until I got the hang of things. I’ll re-use them in staging, etc. down the road.
Rich, I think the adhesive is so un-lumpy residue wise, that super glue or hot glue won’t necessitate the Chooch adhesive glue’s removal. It’s an incredible amount of work to do that and the few small areas I’ve reglued with super glue (edges and corners here and there) seem to lie flat just fine.
To be fair to Chooch, I think in my case (bass wood/masonite) the corners and edges would’ve stayed down fine except that my wall is 8’ long and removable for hidden track access, so with all that gentle whipping/flexing, of course the self adhesive glue would let go here and there. The new cribbing wall has been moved from the layout to the hobby table in the next room for painting several times.
I also want to give a “shout out” to Mike (the owner) at Chooch as he’s located “locally” to me and helped me get the walls quickly for an impeding visit/tour of the layout and I really needed those risers hidden fast! Check out his company’s site if you haven’t already. One can order direct from Chooch if list prices aren’t the major concern of the moment.
This has been a very interesting conversation for me as I am seriously considering utilizing the Chooch flexwall material for the decorative facings on my stone wall Thomas viaduct project. I would likely be attaching the Chooch wall material to the edges of my 1/4" foamed PVC board roadbed,…challenge #1.
Then I would like to attach some of this wall material to itself if possible,…challenge #2. What I have in mind is cutting the side walls of the viaduct at the outer limits of the ‘arch framing stones’, then inserting a rolled up piece of this flex wall material in to form the interior walls of the arch. That would require the perpendicular bond between the two identical materials.
The ends of this rolled up piece would then be decorated in such a manner to look like those ‘arch framing stones’.
I like the Chooch product and use it on my layout. I think you could use track nails and cover them with lichen or such growing out of the wall. Sort of like the he Western Wall in Jerusalem.
I missed the original portion of this particular party, but if you’re using contact cement on a porous surface, the usual practice is to coat it, then allow it to completely dry before re-coating it.
Then both mating surfaces are coated with contact cement and allowed to dry - usually for a minumum of 20 minutes, but the can will have a specified drying time noted.
The two surfaces are then brought into contact, and that’s generally the task completed. No need for clamping or a board to hold it in place.
I won’t claim that contact cement will work with those Chooch Walls, as I’ve not used them, but it’s unlikely that it will work if not used properly.
I can’t count the number of train-show plastic freight cars I’ve bought with deformed underbodies/floors because someone coated the floor and weight with contact cement, then immediately joined the two pieces and completed the car. Thus enclosed, the glue’s solvents continue to work on the plastic, with predictable results.
It doesn’t surprise me anymore that people don’t read the instructions for the various products they use, then complain that such-and-such was “no good”.
I mentioned in a 2014 reply to this thread that I tried to re-use the flexible walls on a new project, and I thought that the original factory applied adhesive would still work because it seemed plenty sticky. In fact, it did work for the most part but the corners came loose. So, I called Chooch and asked for advice. They were adamant in saying that glues and contact cements would not work since they conflict with the factory installed adhesive.
What I finally did was to use a pin vise to drill pilot holes, then tap in Atlas track nails. That did it, and you really cannot see the nail heads.
I recently purchased, from two different sources, Chooch large and medium flexible cut stone walls. These were both new in original packaging.
Apparently Chooch has recognized the adhesive issue and is now shipping their flexible products with the adhesive backing as a user applied option, not factory installed.
Both came with the adhesive on a separate sheet.
Given the unevenness of the back of the flexible products I had doubts about this, basically large sheet of transfer tape, would hold.
I used contact cement to fasten the felxible sheets to porous wood frames.
Following the instructions of the contact cement, I coated both surfaces to be joined with the adhesive. Allowed to dry until just tacky then pressed the two together.
Using spring clamps and strips of Luan, let them cure for 24-hours.
So far the bonds are holding, even around the curved sections.
On my test layout segment I used a good amount of yellow carpenter’s wood glue to hold the chooch self-adhesive wall section in place. It has been holding for about 6 months now with no problem.
Over the past year or so my Chooch flexible walls have been slowly pulling away from the smooth side of the tempered hardboard; shame on me for relying upon their self-stick adhesive during installation in 2014. Sure hope I can make a judicious save considering the delicate location.