Aquarium safe, waterproof sealant.

[tyler1503]

As the title suggests, I'm looking for a fish safe sealant that I can coat anything with to make it aquarium safe.
I've had a few ideas of some non aquarium safe things I want in my next build.
I've come across Lumber-seal by Agra Life, that's supposed to be organic, non toxic and waterproof. There's something about a wood sealant that doesn't sit right with me though.
I also found rubberize-it, which has a fish safe product made for waterproofing plywood aquariums, but it's black, not clear.
I was hoping someone else could possibly suggest a product or two?

 

[wuuzzzuuppp]

You're wanting something to seal up a decoration that is unsafe if not sealed so you can put it in your tank correct? You can seal it with 2-part clear epoxy or UV resistant clear acrylic.

 

[tyler1503]

Yea that's exactly what I'm wanting to do.
Epoxy would be good if I can find a clear one. I've used some in the past that are cloudy, a bit like watered down milk. Is there any specific ingredients to stay away from that may leach into the tank?

 

[JMSKI333]

Just thinking out loud, but I wonder if Fiberglass resin would do the trick. We sometimes use that to waterproof wood for marine applications. I am not sure if it is reef safe or not though. I think I recall reading that people use fiberglass for building plywood tanks.

 

[SantaMonicaHelp]

No need for fiberglass I think, there is definitely a two-part resin that dries completely clear and is non-toxic for your aquarium. Look around the internet, you should be able to find it pretty easily.

 

[stunreefer Verified Sponsor]

I've used Pond Armor many times for your specific purpose and it works great :)

 

[davescrews]

Polygem makes a clear coat that will work for you.

 

[mfinn]

I used casting resin when I made some frag racks.

 

[bmeudy]

2-part clear epoxy or UV resistant clear acrylic. Same stuff the guys from Tanked use.

 

[Merv Himself]

Can't seem to find any good answers with certainty regarding clear MATTE finishes that can be sprayed or painted onto aquairum decor. There is always talk about "Krylon Fusion" that seems to come up, which is great because it comes in many colors, HOWEVER there is no such thing as "Krylon Fusion Clear Matte Finish". There is Krylon Polyurethane, Krylon UV Resistant Clear, but no Krylon FUSION Clear Matte Finish. I really want something to act as a sealer, not just a paint. So ... I know, I know ... before somebody says it, let me just say "No thank you to Clear 2-part resins. Because they all seem to be glossy and I don't want my final product to look shiney in any way. Any suggestions would be greatly appreciated.

 

[JP443]

Can't seem to find any good answers with certainty regarding clear MATTE finishes that can be sprayed or painted onto aquairum decor. There is always talk about "Krylon Fusion" that seems to come up, which is great because it comes in many colors, HOWEVER there is no such thing as "Krylon Fusion Clear Matte Finish". There is Krylon Polyurethane, Krylon UV Resistant Clear, but no Krylon FUSION Clear Matte Finish. I really want something to act as a sealer, not just a paint. So ... I know, I know ... before somebody says it, let me just say "No thank you to Clear 2-part resins. Because they all seem to be glossy and I don't want my final product to look shiney in any way. Any suggestions would be greatly appreciated.

I know this is old but for anyone looking for the same thing current day, this works really well...
https://www.hobbylobby.com/Art-Supp...te-Krylon-UV-Resistant-Acrylic-Coating/p/6300

 

[Luv2Laff]

I know this is old but for anyone looking for the same thing current day, this works really well...
https://www.hobbylobby.com/Art-Supp...te-Krylon-UV-Resistant-Acrylic-Coating/p/6300

Does it have to be UV resistant? I can only find clear matte acrylic coating. No uv resistant.

 

[kellene]

Does it have to be UV resistant? I can only find clear matte acrylic coating. No uv resistant.

Did you try the matte finish? I am trying to find something to make my epoxy matte. I used epoxy to cover some rocks in my aquarium but hate the shinny finish and need something that is safe for my puffers. Any input would be great!

 

[skiff21]

A widely recommended "aquarium safe clear coat spray" is Plasti Dip clear spray; it's considered safe for both freshwater and saltwater tanks, readily available, and comes in a spray can format making it easy to apply.

 

[Chicago Johnny]

I know this is an old thread, but if looking for a clear epoxy search for table top or bar top epoxy. They will turn out crystal clear. You could also add any color pigment you wanted if you were looking to make some aquarium safe decor. If making a long cylinder for a stand they will bend over time within the aquarium, they are still safe, just bend in the water unless they are thicker than 3/4 inch, as I make a strip light encased in epoxy with 14 inch long legs and the legs flexed in the aquarium. The epoxy was fully cured and appeared to be very stiff before placing in the tank. If I ever made again would add a stick or metal rod in the middle for some more support. Or just use colored acrylic tube or rod for the legs.