Originally Posted by Jay7
MM - In the first picture in the post quoted above, what are you using for trim? I like how it angles in at the end. The trim I found at Home Depot does not appear to angle that much.
I used some 3.25" MDF base I found at Lowes for that one, and it had a smooth, sloped Curve, not a "Milled" edge made to look like Capped Trim.
However I have always found that the Milled Edge variety usually slopes out well when the velvet is wrapped tight, bridging the rise in Milling in a very smooth and precise angle..
Also, when in the first pictures you posted in the thread in which you put the sintra up with glue, do you ever have problems with it falling down after some years? Do you just put the trim right up to the edge of the sintra?
Much depends upon the surface applied to. I have found that smooth, tightly cured painted walls sometimes makes for poor adhesion when using adhesives like the White Lightning Adhesive Caulk. I focused on using that particular brand because it's water based (...did not eat into paint/plastic/Mirrors...) and has a workable "work time". Not very expensive either.
So I apply 1/4" thick beads 3/4" apart and trowel them out lightly to evenly spread them out/together. That creates such a uniformly distributed adhesive footprint that it's virtually assured the sheet will stay plastered up against the wall.
But as mentioned, sometimes it fails to stick well, especially on satins or semi-glosses, and terribly so if the wall is dusty or the like.
Now that I use Sintra predominantly, I can use the Power Grab that has 15-20 minute work time. It usually takes 6 tubes to do a 120" diagonal screen.
But for the record, I don't like using the less expensive 3 mm Sintra with adhesive because even when you trowel out an adhesive, if you applied tall enough beads that allow for effective spreading, and don't get then spread out completely even across the material, you WILL
have ridges under the material that will at least been noticeable in the "tactile" sense. 6MM never presents that issue.
Of course if I overlay my Trim on the Sintra and shoot/hammer Finish nails through both the Trim and Sintra into the wall (studs or even just Drywall) the material isn't ever gonna budge, even if I used the Adhesive Caulk sparingly. The screen shown directly above was done in such a manner, using both adhesive and overlaid Trim.
Redundancy is a DIY'ers best insurance against "hair pullin'" frustration. But you do have to be able to have the Sintra cut between 2" minimum to 3" maximum larger all around the anticipated screen size to allow for such an overlay method. Butting allows for that extra size bump.