resin

A synthetic polymer used in plastics, adhesives, varnishes, and coatings.

"She cast the flowers in clear epoxy resin."

A sticky, flammable organic substance secreted by certain plants, especially conifers.

"The pine tree oozed a clear, sticky resin."

To treat or coat something with resin, typically for protection or adhesion.

"They will resin the surfboard to seal it."