Expanding foam tutorial part 1.
So this is the first time I worked with this stuff so hang in there with me. Hopefully this will be helpful to someone!
First I cut the shapes that I wanted to use out of a stiff paper. I used a Bristol board but I also think that a craft foam base would work. I just didn’t have any handy and was lazy. I then took a wore hanger, curved it around to match the tear drop shape I was making and taped the wire onto the Bristol. I used tape because later I wanted to easily remove the wire. I then bent the wire into the shape of the curves I wanted in the final piece. They are going to be big flower petals.
Once I had all four prepped I took them out to the garage and put them on a board that I did jot care if it got destroyed. This foam sticks to everything!
Read the label on the great stuff expanding foam. There are lots of different kinds you can buy. Some expand bigger but end up with bigger air bubbles which can be a pain. Some don’t expand enough and you have to use alot to get the shape you need. Figure out what’s best for you!
Shake the can. SHAKE THE CAN! It’s important. Like really. Don’t skip the can shaking. 60seconds minimum.
Then spray away. Not really much to it. You gotta get it all done pretty fast or the foam in the can nozzle will harden and you will have to cut it to continue. It’s a pain.
Then let it is. I didn’t actually wait very long. I sprayed the foam and went and sewed a skirt hem. When I came back they were hard. Maybe 30 minutes? It also is going to depend on the temperature of the room for the drying time. If you cut into them and they are still mush inside let it dry for another 30 minutes…. Just to be safe.
The next step is to get a blade. I used a long exacto blade but you can use a utility blade as well. Mark with a sharpie where you want your shape to kind of end up…. And go at it.
Tip: keep your blade sharp. A dull blade will pull at the foam and not slice through it. You will loose chunks. Just keep changing the blade. Suck it up. If you are like me use try to squeeze all the life out of your exacto blades and just end up wasting alot of time.
Alright. Part 2 will be up soon. The finishing!
Hope this helps!