Last min check, problem with vinyl adhesives on tank glass?

[JoJosReef]

I'm about to black out the side walls of my sump refugium so that light doesn't spill into the overflow/filtration/return chambers causing algae growth where I can't easily clean it. Here is the sump:

Here is the product I bought to black out the sides.

It lays against the glass, then I use a heat gun to get the adhesive to stick and vinyl to stretch taut. I will, of course, protect the seams when using the heat gun.

Here is where I plan to put the blackout:

Anyone know if the adhesive would be a problem in the tank? I know we use various adhesives in aquariums, such as CA glue and epoxy. Anyone know if this kind would pose a problem? Thanks!

 

[JoJosReef]

Anyone know what the risks are with this product?

 

[tsharpe291]

I wonder if it would hold up over time in the saltwater , I would look for some thin black
pvc material then a couple dabs of silicone to adhere. just my 2 cents worth

 

[Reefering1]

I would just slide in a sheet of plastic, like this, against the glass...

 

[Duane family]

As someone else mentioned, I do not see an issue with the adhesive as once it has cured it really cant break down and pollute your water. But I don't think it will last very long, I would expect it will begin delaminating within a few months.

 

[Bruttall]

why worry about blacking it out, it just seems a waste of time and materials to me.

My Fuge.

 

[JoJosReef]

why worry about blacking it out, it just seems a waste of time and materials to me.

My Fuge.

It will be a display fuge, so planning to keep it tidy:

 

[JoJosReef]

Thanks for the replies. I will look into some black plexiglass like I used to make a cryptic refugium lid: