First the tree must be prepared to make it suitable for the mold making process.The preparation includes stripping residual bark, sanding, and cleaning the surface. Fill deep undercuts and gaps to make the mold process easier.
Take care to ensure the original shape while filling in gaps and undercuts to help prevent a mechanical lock between the original and the rigid support shell. Once the tree has been cleaned and the gaps filled, apply Smooth-On's Super Seal® to fill in pores and prevent possible cure inhibition of the Rebound® 25.