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knotting, knot sealer

A sealer (such as shellac, aluminum paint, or varnish) for knots in new wood; used to prevent bleed-through of resin into paints.
References in periodicals archive ?
Long, flexible molecules, like DNA or those that make up polymers, can also suffer knotting (SN: 11/16/96, p.
Sailors and other knot users have a large repertoire from which to choose the right knot for any purpose, whether it's tying a shoelace, mooring a boat, or knotting together bedsheets to escape from an upper story of a building.