Assuming you are asking how to dissolve Flarp putty:
Flarp is made of non-toxic, boron-based materials and can be dissolved in vinegar. To dissolve Flarp, add one cup of white vinegar to a bowl or container. Place the Flarp in the vinegar and allow it to soak for 24 hours. After 24 hours, the Flarp will have dissolved and can be disposed of in the garbage.