acrylic bonding

Welllllllll....

I know this isn't the answer to your question, but it's better to have glass in a sump.  Glass bonding to glass is best done with regular old silicone.  If you go looking I've heard tell that small glass sheets from local shops runs you roughly $10 per sheet.  The prolific DIY'r will find (borrow) a glass cutting tool, rummage through a dump/DI (hehe DI has so much cool stuff) and cut the baffles themselves-- this doesn't come recommended from me, mind you. 

The glass cutting tool, in case you're wondering, is shaped a lot like a pizza cutter, only instead of a sharp beveled edge, it's a blunt diamond studded edge.  You grind slowly away and either break off the piece you need, or just grind all the way through.  I've never done this myself, so I'm just throwing it out there as an option for you to be aware of.

As far as the best way to get acrylic to bond to acrylic, I refer to the 'pins' method, as seen on ReefCentral.  I'm sure if you use the search function here, you'll find something good posted by talented individuals locally.  (I'm looking at you, jfinch...  if that IS your real name!)

Anyway.  Since I've never done it I don't want to be the blind leading the blind...  Here's the link to ReefCentral:

http://www.reefcentral.com/forums/showthread.php?s=724fbc808a979c802db0dbdabdbb9828&threadid=169326&perpage=25&pagenumber=1

My pleasure.

Weldon #40 would be a one shot deal in my opinion.. as it is thick and you would spread it on just like silicone to glass... with a popsicle stick.. and be done period :) Just my opinion though..

Chris, the thin glue (weld-on 3 and 4) will be pulled into any close fitting joint by capillary action (that's how I use the term "wick").  I add glue at a rate that assures that the complete joint is "wet". 

Interesting.

I should get some scrap acrylic and some weld-on and experiement.

Where's the best place to buy acrylic and weld-on?

Sweet.

Thanks.

Regional

jfinch wrote: Regional Supply, just off 33rd south They have scrap acrylic for very cheap and glue.  A pint of Weld-on 4 is about $5 and you'll need an applicator bottle (less then $1).  Weld-on 16 can be bought in smaller quantities and is thick and viscous like a syrup.  And as Dreaming mentioned, Weld-on 40 is a two part glue that is mixed up kind of like epoxy.