0 a thick, sticky substance that is produced by some trees and that becomes yellow and hard after it is collected, or any of various similar substances produced by a chemical process for use in industry:
pine resin
1 a clear, yellow, sticky substance produced by some trees and plants and used to make varnish, medicine, or plastics, or a similar substance produced chemically for use in industry
Its seeds are enclosed in a calyx exuding extremely sticky resin which adheres strongly to feathers.
On detached stems only traces of resin were visible that were too small to distinguish from background levels using this method.
Much seemingly vital information, such as composite makeup and resin chemistry, is totally ignored.
Primary resin is produced by the petrochemical industry and is made from raw materials, such as naphtha and chloride.
Import of secondary resin is not an option at the present moment as there is no trade flows in this commodity.
Samples were incubated at room temperature for 5 min and placed in the magnetic stand for resin separation.
They get further improved by the opened dentinal tubules allowing the formation of resin tags in the filling material.
The imports of waste plastics goes down as less secondary resin is used in the final production processes and therefore inevitably so does demand.
