DictionarydopeProtective preparation
noun / verb

dope

A preparation applied to protect or treat a surface.

The technician brushes dope onto the airplane's fabric covering.

Etymology

The Dutch source names a sauce or thick mixture. English broadened it to preparations applied to surfaces, retaining the idea of a spreadable treating substance.

More examples

  • We dope the model airplane's wings to tighten the fabric.
  • Allow the dope to dry before adding another coat.
  • He uses pipe dope to seal the threaded joint.

Forms

dope · dopes · doped · doping

Similar words

coating
A broader term for a layer applied to a surface.
varnish
Specifically a finish that dries into a hard protective film.
sealant
Emphasizes blocking leaks or gaps rather than general surface treatment.