Felting p. pr. & vb. n. : of Felt

Felting n. : The material of which felt is made; also, felted cloth; also, the process by which it is made.

Felting n. : The act of splitting timber by the felt grain.

Example:
How do you clean raw alpaca wool without accidentally Felting it?

Taxonomy
KIT, NEEDLE FELTING, felting needles, Hat Kit, Skill level, SHA, work surface, photo instructions, sponge, foam, Corriedale, FEL, beads, ASH, needles, colors, lamb's wool, eyes.

Defination from the web:
... felting surface such as a sponge or piece of foam (included in some kits) ...