Wikia

Sticky Resin
Name	Sticky Resin
Type	Item
Luminance	No
Stackable	Yes (64)
Data Value	dec:30217
EMC Value	24
Mod Included	Industrial Craft 2

Sticky Resin is an item obtained by

Right-clicking orange resin patches on Rubber Wood logs with a Treetap or an Electric Treetap.
Right-clicking black (empty) patches on Rubber Wood logs with a Treetap. You get a second harvest, but this also depletes the patch forever.

It is rarely dropped when chopping Rubber Wood down with an axe of any kind.
Right-clicking Stickreed in its final stage of growth with almost anything (there are a few Crop-related exceptions.
Crafting from UU-Matter at a ratio of 4 UU-matter to 21 resin.

Sticky Resin can either be smelted or Extracted into Rubber, the latter being the more efficient option. It can also be placed on the ground where it acts similar to Soul Sand slowing down all mobs and players, as well as reducing fall damage. The Sticky Resin that is placed can be taken back but when removing it it has a 10% chance of being destroyed and not returning.. Sticky Resin also regenerates on the tree at a slow rate. Sticky Resin is worth 24 EMC. Sticky Resin can also be used in place of slimeballs when making sticky pistons, and can also be used for making torches (same recipe as with coal/charcoal, but with Sticky resin substituted for coal/charcoal).