Hard liner adhesive for rock edging?

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Hello all,

I have a small (~200 gallon) pond with a hard liner and am trying to find a good edging solution to hide the exposed liner.

I was thinking of gluing small rocks to the liner covering a few inches below the waterline and am wondering what adhesive you folks would use.

Is this a good choice? https://www.amazon.com/MasterSeal-NP1-Black-Polyurethane-Caulk/dp/B00UMWTKO8/ref=sr_1_17?ie=UTF8&qid=1530644499&sr=8-17&keywords=masterseal+np+1

I've searched the forums and NP1 or Urethane adhesive seems to be the right choice but Home Depot and Lowe's don't really carry that any more.

What are people using nowadays to glue up their ponds?

Any responses welcome. Thank you,
Davin
 
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sissy

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I think most use rock on a roll .Are you talking about a preformed .I have seen and made rocks out of cement .They were L shaped .
 
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Thank you for the quick response!

Yes, it's a preformed. I'm at work and don't have a picture but it's just like ones available at Home Depot and Lowe's. Nothing fancy

I looked at rock on a roll but it seemed pricey and I was leery of it since I haven't used it before.

Rocks made from cement sound promising. How did you make them? Some kind of form?

Thanks again,
Davin
 
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That preform is probably pvc.
An appropriate epoxy for PVC should do the trick.
Read the epoxy packaging to see if it will do what you want.
 

sissy

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a ponder on here had a video on you tube and made them over a box and then sealed them afterwards
 
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That preform is probably pvc.
An appropriate epoxy for PVC should do the trick.
Read the epoxy packaging to see if it will do what you want.
I agree with mitch in the aquarium trade they have epoxy you can use underwater that is non toxic and or won't mix with water.
 
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