Originally Posted by wermad;12304713
How strong is the adhesive made for acrylic? strong enough to do fine w/out screws and/or support (i.e. acrylic bars to support certain panels, etc.)? any particular brand recommended?
I'm lucky to have eplastics.com
about 15 minutes away from my home. lots of acrylic options to choose from, its like a candy store when I walked in
My apologies for the delayed response.
The capillary bond is strong enough on it's own so long as the the panels in question are at least 1/8" thick and do not have to support too much weight.
A 1/4" panel that is bonded to another panel is very strong and can be used for structural support. It is notable that the design will also play a part in the efficacy of a bond.BUT
... it also depends upon the quality of the capillary bond. A router blade cut is ideal for capillary bonding as there is a small "wave" along the edge. These gaps are ideal for the capillary action.
The saw-blade marks of a circular blade will also do, but the travel of the weld-on (capillary action) may not be as deep.
The image below shows the various raw cuts. From top-to-bottom: Dremel, Saw blade, router
As for brands, Chem-cast is a brand that I use most often and is available from numerous sources. The only notable difference in types of acrylic is Cell-cast vs. extruded. The former is preferable as it withstands the heat of friction caused by power tools, extruded has a tendency to congeal.
For capillary bonding I use Weld-On #3
or Weld-On #4
(#4 is moderately fast-curing).