artifficial tree trunk

[lado]

I want to mold trunk out of stirofoam,wonder what kind acrylic paint or compaund is used in such case?thanks

[ronrca]

Ive have seen many 3d backgrounds covered with concrete mix like Quikrete mason mix with Quikrete acrylic fortifier. Im not sure if I have seen Quikrete in Home Depot or Rona however here is the Canadian supplier of Quikrete:
QUIKRETE® of Ontario/Forwell Materials, Inc.
Phone: (519) 621-3093
Kitchener, ON Canada N2G 4GI

The website is www.quikrete.com
Here also is a link for waterproofing concrete mix:
http://www.quikrete.com/catalog/catalog_waterproofing.html

There maybe another mason mix that may work however. I will be making a 3D styrofoam background soon as well. There is also concrete color that you can mix together with the mason mix to achieve different colors.
Here is a link for the color mix:
http://www.quikrete.com/catalog/coloredmasonmix.html

Id love to see the pics of your project and your experiences as well.



HTH

[tpl*co]

Doesn't newly cured concrete leach something in the water? Isn't there something you need to do before using it in a closed environment like an aquarium (something like soaking or with acid or something?). Been interested in trying something like this for a while also.

[ronrca]

Ive been researching this as well and thanks for bringing it up. Yes, concrete will leach however only for a short period. Ive read ppl generally do daily 100% wc's for a couple days to a week (with no fish of course).

[lado]

Thanks for info ,gota get down to depot and find out.Keep you posted.

[scans]

Many of those artifficial backgrounds are fiberglass and/or cast resin. Once set and cured, they don't leach.

http://www.chinapets.com/gzdeyi/product/3/AQB001-l.jpg

[scans]

Try this place....

http://www.aquariumrocks.biz/photoall.htm

[terryt]

Pangea aquarium backgrounds is where i bought mine. I love it.

[wolfbane]

My daughter rinsed her strofoam/concrete background with vinegar very well, several times.

[dishpanhands]

here is a link were sombody made a background out of stuff like this.
http://forum.simplydiscus.com//showthread.php?t=42003