DIY Epoxy Safe glue?

[Andrew Schubert]

I am making my own DIY overlow. However, the material I used must not be acrylic because my acrlyix glue doesn't bond with it. So was wondering g if Dap Tank Bond Epoxy would be OK to use...or should I stick to trying silicon?

 

[X-37B]

I have done corner overflows with silicon many times with no issues.
Its how all corner overflows are done to glass.
If you are glueing acrylic together use weldon 4.

 

[Andrew Schubert]

I have done corner overflows with silicone many times with no issues.
Its how all corner overflows are done to glass.

Yea... im actually building the entire overflow from scratch

 

[Sisterlimonpot]

If it is all out of acrylic you'll want to bond the pieces not glue them. Weldon 3 or 4 is what you're looking for.

 

[X-37B]

Yea... im actually building the entire overflow from scratch

Then you need weldon 4. I have made many sumps with it.

 

[Andrew Schubert]

If it is all out of acrylic you'll want to bond the pieces not glue them. Weldon 3 or 4 is what you're looking for.

Yep....thats what I've used...this must not be acrylic

 

[Sisterlimonpot]

Yep....thats what I've used...this must not be acrylic

Can you clear something up? What did you use?

The epoxy in your first post is not a solvent. Weldon 3 or 4 is less viscous than water. Weldon actually softens the acrylic and allows the acrylic to bond to itself. There isn't any glue or epoxy involved.

 

[Andrew Schubert]

Can you clear something up? What did you use?

The epoxy in your first post is not a solvent. Weldon 3 or 4 is less viscous than water. Weldon actually softens the acrylic and allows the acrylic to bond to itself. There isn't any glue or epoxy involved.

I tried my weldon 4 and it didn't bond...thats why I was asking about the epoxy. The material is BLACK high density poly sheets (HDPE). Evidently weldon doesn't work with that stuff.

 

[Luckyduck]

Then you need weldon 4. I have made many sumps with it.

Hey brother I'm about to build a mini surface skimmer, sorta like an overflow without the over, basically a small box out of acrylic. I was just wondering how I was going to bond it together. Literally was just thinking about it and came across this post! Good timing. I should order myself some Weldon #4 then correct?

 

[Sisterlimonpot]

I tried my weldon 4 and it didn't bond...thats why I was asking about the epoxy. The material is BLACK high density poly sheets (HDPE). Evidently weldon doesn't work with that stuff.

Hmm interesting, I don't know of a solvent that will bond HDPE. Outside of actually welding it, epoxy is probably the best option.

 

[Sisterlimonpot]

Hey brother I'm about to build a mini surface skimmer, sorta like an overflow without the over, basically a small box out of acrylic. I was just wondering how I was going to bond it together. Literally was just thinking about it and came across this post! Good timing. I should order myself some Weldon #4 then correct?

Yep

 

[X-37B]

Hey brother I'm about to build a mini surface skimmer, sorta like an overflow without the over, basically a small box out of acrylic. I was just wondering how I was going to bond it together. Literally was just thinking about it and came across this post! Good timing. I should order myself some Weldon #4 then correct?

Yes.

 

[X-37B]

Sorry did not see it was hdpe.
Their are hdpe glues out their but the best method is poly welding.
Not sure I would use anything but a polypro welder for that application.
I would just get some black acrylic and weldon.

 

[Timfish]

If you're using HDPE you'll need to weld it. There aren't any good gluing options that will hold up over time. Sooner or later the joints will start seperating.