Fused plastic bags with a conductive thread core.

For that special moment when you need a soft circuit that is water resistant.

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Step 1: Parts

Picture of Parts
Plastic Bags
Cutting Implements
Conductive thread

Step 2:

Layer plastic bags on top of a piece of paper.
Lay conductive thread trace.
Layer plastic bags.
Lay conductive thread trace.
Repeat until design is complete.

I recommend that:
Two or three layers of plastic separate conductive threads that lie on top of each other.
Total of eight of more layers of plastic.

Step 4: Fuse the layers together

Picture of Fuse the layers together
Place the plastic bags between two layers of paper.
Using an iron on medium setting firmly press the papers together while constantly moving the iron.
Flip the paper and iron from the other side.