LF a 100% Reef Safe LIQUID epoxy

[Chris155hp]

I have a little DIY project I'm working (not quite ready to reveal but will do if it pans out) but need a LIQUID epoxy that's completely inert when cured. Basically the liquid equivalent to water weld. Also can't be too thick when mixed so it can flow relatively easy into a mold let's say ;)

 

[davescrews]

Look into the polygem zoopoxy

https://www.polygem.com/products/zoopoxy/casting/e-z-cast-1-gallon-kit-casting-epoxy

 

[redfishbluefish]

I haven't met an epoxy I did not like!


That is, I don't know of any epoxy that would be a problem in our tanks.....from the semi-clear liquidy hardware store stuff, to a little thicker J-B Weld, to putty-like plumber's Rectoseal. I've used them all without issue.

 

[Chris155hp]

I haven't met an epoxy I did not like!


That is, I don't know of any epoxy that would be a problem in our tanks.....from the semi-clear liquidy hardware store stuff, to a little thicker J-B Weld, to putty-like plumber's Rectoseal. I've used them all without issue.

I thought jb weld has heavy metals in if and wasn't reef safe

 

[mfinn]

polyester casting resin.

 

[redfishbluefish]

I thought jb weld has heavy metals in if and wasn't reef safe

No heavy metals...but it does contain iron and a pinch of titanium. However, these are "encapsulated" in the plastic matrix of the epoxy.

 

[Chris155hp]

polyester casting resin.

Which one there's like 10

 

[mfinn]

Which one there's like 10

Castin'Craft Clear Polyester Casting Resin - BLICK art materials



I used this brand to make approx. 65-75 frag racks a few years ago for friends and local club members.
I used it to encase neodymium magnets.
This material held up very well as long as some color( black or blue dye) was used in the cast.
I used regular casting molds.
This held up better than a 2 part epoxy

 

[Helenareefer]

Rod building epoxy stays very fluid for at least an hour. Not too sure if it is aquarium safe, but after it cures, I wouldn't imagine there woul be a problem. That said, I'm no chemist.

 

[This guy is Extra Salty]

I’m curious what are the pros and cons of the expoy’s that were used?

It’s been a few years... what is the three year review?

 

[mfinn]

I’m curious what are the pros and cons of the expoy’s that were used?

It’s been a few years... what is the three year review?

The polyester casting resin I used seems to hold up 6-7 years, and counting.
The part of the eggcrate that attaches the resin covered magnets to the eggcrate was the weak point and many have broken at that point.
The resin is still solid.