wash coat

wash coat

[′wäsh ‚kōt]
(engineering)
A sealer consisting of a very thin, semitransparent coat of paint.

wash coat

A very thin, semitransparent coat of paint; applied as a preliminary coating on a surface; acts as a sealer or guide coat.
References in periodicals archive ?
Because the grain undulates so that end grain is present, finish has a tendency to saturate those areas, often creating a splotchy, washed out effect unless careful preparation to include a wash coat or glue sizing is included in the finish process," Schramm said.
3:00-3:30 pm--Prepaint Wash Coat Stabilization of Weathered Wood--Greg Monaghan, Dow Coatings Materials
Together with Sud-Chemie's proprietary wash coat and catalyst technology, the NxtGen syngas technology provides an opportunity to further develop and apply diesel engine emissions controls on urban vehicles, which operate at low-exhaust temperatures.
So, the date the converter was made, the speciFic batch of slurry it was made from, machines used in manufacturing, and the wash coat assigned by the chemical guys, all become integral to the converter.
All the cans receive an epoxy wash coat to increase mobility and provide resistance to external corrosion before they are beaded and internally lacquered.
Do you use a wash coat here or a full-bodied coat of sealer?