Joining two light box faces?

[Sven]

Just wondering how people deal with two acrylic lightbox faces that have to join in the middle? Tape? I'm just worried about light showing through and the faces not being in one even plane.

 

[J Hill Designs]

if the face is longer than 8 or 10 ft I use polycarb

 

[Sven]

I usually do too, but it's 21 feet. I don't feel good about installing one 21' face!

 

[J Hill Designs]

meh thats not too big...

but...

a 2" strip of CLEAR acrylic, fixed to one of your two acrylic panels with CLEAR VHB (1" on it, 1" jutting out) then CLEAR VHB the second piece to that 1" that is jutting out...shouldn't cast too bad of a shadow when lit

 

[Billct2]

We usually do a routed lap joint. The clear acrylic backer strip works (we use resin bond to attach) but can still show a light leak.

 

[J Hill Designs]

never even thought about a lap joint on 3/16 material...good idea

 

[d fleming]

+1

We usually do a routed lap joint. The clear acrylic backer strip works (we use resin bond to attach) but can still show a light leak.