What do you use to bond acrylic together?

[ZoaFan08]

Looking to add baffles into an acrylic tank for a sump.

 

[roshi719]

Weld-on I believe number 16, number 4 is the water thin stuff that people use for the capillary bonding method.

 

[Blackhawk Fan]

Yeah 16 is good for that. There is a guy on ebay that I got a tube from for around $10 shipped.

 

[gilmour01]

yep..weld on. it works great.

 

[killingseed2000]

clap panels together use #4 , make life easy ,panels are set in place and i dont need the claps any more then i apply the # 16 weld-on and the

 

[ZoaFan08]

Thanks! I found a local plastic shop that sells the 5oz for $4.50. Plus I bought a lot of spare 1/4" acrylic sheets for $14 to make the baffles with and try some projects.

 

[ZoaFan08]

clap panels together use #4 , make live easy when i apply the # 16 weld-on and the panels are set in place and i dont need the claps any more.

I have no idea what you are trying to say :nerd:

 

[killingseed2000]

i user both 4 and 16, i clap acylic panels together then apply #4

once the #4 welds the acylic panels together i can remove the claps and apply #16

 

[DEERE G]

I use Weld-On #4 for anything structural that holds water. #3 for quick set that does not have to hold water. I rarely use #16. If you think you need #16 ...make the fit better and use #4. IMO/IME

 

[ZoaFan08]

i user both 4 and 16, i clap acylic panels together then apply #4

once the #4 welds the acylic panels together i can remove the claps and apply #16

Ahh perfect thanks, I read the other post 5x and I was lost .

Whats the difference between #4 and #16? Different strengths?

 

[ZoaFan08]

I use Weld-On #4 for anything structural that holds water. #3 for quick set that does not have to hold water. I rarely use #16. If you think you need #16 ...make the fit better and use #4. IMO/IME

I'm using it for the baffles in a sump and to hold a probe holder, so if it leaks on the side a little I'm not that worried about it.

 

[killingseed2000]

#4 is more of a liquid and will work it's way in between the acylic better. 16 is more like a paste , much thinker, like toy model glue. to use #4 its best used with a needle type applicator.

one like this
IPS - Weld-on Weld-On Applicator Bottle with Needle | AAB4

 

[GrouperGenius]

Which ever you use, don't try to rush things. Keep it clamped up and set a day or 2.