Fixing broken prefilter/weir on eshopps HOB overflow

Drewe

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So I uh..dropped the overflow. Back part of the black piece that sits in the tank and is tightened against the external overflow box. I believe the material is acrylic, how do I glue this thing back together so it's water tight?

I assume aquarium silicone won't work since it's not glass?

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redfishbluefish

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If it's acrylic, you'll want to use one of the Weld-on cements. Just not sure which number. I would think the thick one, which again, not sure of the number.
 
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Drewe

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If it's acrylic, you'll want to use one of the Weld-on cements. Just not sure which number. I would think the thick one, which again, not sure of the number.
Thank you. It appears to be the same type of material used on the eshopps eclipse overflows which I believe is acrylic.

I've no experience with acrylic, I know with some silicone I could have this fixed and running waterproof no problem - would the the thick acrylic weld-on cements do the same?
 

Freenow54

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I see no reason silicone wont work. However for strength Use can use a glue gun " my choice ". Or epoxy. It being an Aquarium I would shy away from that or any other chemical bonding personally
 
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Drewe

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I see no reason silicone wont work. However for strength Use can use a glue gun " my choice ". Or epoxy. It being an Aquarium I would shy away from that or any other chemical bonding personally
I actually tried silicone and it just doesn't bond well enough to hold the piece together from what I can tell. After letting it cure overnight it was too wiggly and immediately fell apart. I ordered some weld-on, which was like $25(!!!). I'm going to try JB Water Weld today in the off chance that works and I can return the big tube of weld-on that I'll likely never use again
 

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