There are many brands of enamel and acrylic paints. Every experienced customizer has a favorite paint, but few seem to agree on which brand is best.
PVC plastics (arms, legs, heads, and weapons):
1) Acrylics are safe but not very durable
2) Acrylic enamels are safe and more durable
3) Enamels usually don't dry, unless sealed by Testors Dullcote
Styrene plastics (torsos and pelvis):
1) Acrylics are safe but not very durable
2) Acrylic enamels are safe and more durable
3) Enamels seem safe
Polymer clays:
1) Acrylics are safe but not very durable
2) Acrylic enamels are safe and more durable
3) Enamels seem safe
For Model Magic:
1) Acrylics are safe and fairly durable
2) Acrylic enamels are safe and more durable
3) Enamels have not yet been tested
4) Structural Paint is safe and durable