Semi-liquid substance exuded by conifers, used as a basic ingredient in
adhesives and cements. e.g. dextrin, casein...
The extrusion tip, the point at which the adhesive exits the gun. The nozzle
controls the adhesive streams volume, shape and direction. Nozzles may
have single or multiple orifices.
Natural Rubber, NR
Natural rubber is a polymer produced in the sap of rubber trees (Hevea
Brasiliensis) and some other plants. As a natural product, it is formed as a
latex which can be collected and dried. The polymer is cis-polyisoprene. It is
not cross-linked in the natural state and only becomes a durable solid when it
is cross-linked, by for example, vulcanisation.