Crazing on acrylic seams, do you think this tank will be ok?
- Thread starter HenryC
- Start date
Gotcha, so I just brush it on the seams from the inside right? What about the square acrylic rods I keep reading about, do you think that's necessary?
I think 40 is better than the rods. You pour it along the seam after you tilt the tank
Thanks! Oooh ok so that's what they mean with the capillary method right? I tilt the tank, pour the weld on 40 in and just let gravity pull it down all the way to the end of the seam yes? Covering all the seam along. Sorry if I seem obtuse lol, I just wanna make sure I understand everything 100%
Not quite. Capillary is with respect to solvents. What I mean is tilt the tank so the side you are wanting to pour will create a 45 degree angle from the pooling of weldon 40. You want (for appearance) the side to be level so the material is equal thickness along the seam.
Oh gotcha! Thanks a lot you've been real helpful! Last question please! Do I have to leave it tilted for all the curing time? Or just the 20min working time it states in the bottle?
I just reinforced in acrylic sump for the 1st time and it was very easy using weld on 40 1/2 inch acrylic dowels. I just sanded it and applied it, it was much easier then I thought the Weld on dried quick and held good. If That was my tank and it was on the bottom I would just put a bunch of weld on 40 down with the Square dowel to reinforce it and wouldn't think about it ever again. When you see how good the weld on bonds Because it's a solvent Weld not glue it will be fine. Just make sure your stand is very well reinforce so there is no deflection.
hey all,
i just poured a back seam of my 150 gal, tank and a bunch of crazing started. ironically it started about .5" above the glue on both the bottom and back walls. any advice to avoid this? slower pour maybe? or less amount of weld-on40 but build up over a few pours?
I had crazing in this exact fashion too, I had no issues with it. The weldon gets hot as the reaction takes place so I think it cannot be avoided? Had the tank for about 2 and a half years and everything was good.
