[Guest]

would great stuff foam stick to a coco panel background iw as thinking of going half coco background and the other half great stuff and coco fiber? anyone ever try this? thanks.

 

[dmartin72]

The problem is the cocos panels can dry out and absorb water. I'm not sure if it would stick long term. I did notice that Great Stuff foam shrunk after I put it directly on the glass and started to come off of the glass.

 

[Guest]

does the great stuff generally shrink and not hold onto glass well? or was it just in your case?

 

[dmartin72]

I think the shrinking is more noticeable if you only use just enough to fill the space. I have other tanks where I used the foam excessively and haven't had any problems yet.

does the great stuff generally shrink and not hold onto glass well? or was it just in your case?

 

[Guest]

oh okay i see well then if i decide to go with the great stuff i'll be sure to use it excessively. just wondering is it possible to carve or cut off part of the excessive foam? haha

 

[dmartin72]

Carve away!

oh okay i see well then if i decide to go with the great stuff i'll be sure to use it excessively. just wondering is it possible to carve or cut off part of the excessive foam? haha

 

[Guest]

nice thanks

 

[Guest]

a comment on the excessive use of great stuff.

The first time I used it, I used a lot, as in 7-9 inches from the back wall (trying to create a slope effect). The problem was that while the foam exposed to the air dried, there was still wet foam inside. I thought this would be okay, since it was totally sealed, but unfortunately the foam found a way out, through the bottom corners of the tank rendering it no longer water proof.

lesson learned: apply the foam in layers that you allow to dry before applying more.

 

[dmartin72]

I would agree with layering, but 7-9 inches is more than I have ever tried to use at one time.

 

[Guest]

hmm thanks for the pointer haha makes sense though