This volcano, built for a client’s luau party, is constructed of spray foam on a wood frame. The interior is lit with PARs and red gel, and the top allows fog or haze to escape.
This volcano, built for a client’s luau party, is constructed of spray foam on a wood frame. The interior is lit with PARs and red gel, and the top allows fog or haze to escape.
I put together this proposal for the client with a wireframe 3D model of the volcano and a few research pictures.
We based the sell price of this project on my material and labor cost estimate.
The basic shape of the volcano was constructed of 1×3 pine lumber covered in a mix of 1/4″ lauan and 3/4″ plywood. Tiger Foam® was sprayed over the frame, then carved to create the volcano texture.
After the basic volcano shape was carved, slits were cut into the body of the volcano to form “veins”, and the foam was coated with an elastomeric paint.
The veins were backed with red gel, and PARs were used to back-light the interior of the volcano. At the top, a closed chamber housed the fog machine and another PAR, to create the glowing smoke effect.
Here is the final volcano, with the glowing smoke and veins. Unfortunately, the client’s budget could not afford the labor necessary to develop a better method for hiding the seams between the five sections of the volcano, so they are visible.







