These, when dry, insulate almost, but not quite as well as solid paraffin.
Be sure to insulate all joints and wires well inside the box.
I frankly don't know how we could insulate the peas from the effects of the saltpetre.
By means of the ribbon he held the cord to insulate it from his hand.
We are to be conductors of the Divine energy; not to insulate it.
We might even place a layer of asphalte between the copper floor and the ground, so as to insulate the building.
Let a charged jar be placed on a glass plate so as to insulate the outer coat.
In short it can be made to insulate or isolate the particular conductor from all other conductors.
A single paper thus prepared could insulate the electricity of a trough of forty pairs of plates.
A simple porcelain cleat at either end, as shown in the drawing, will serve to insulate it sufficiently.