subcoating

Primer beneath paint

Subcoating is a layer applied beneath a primary coating, serving as a foundation or protective barrier.

In automotive work, subcoating refers to a rust-preventive treatment applied to a vehicle's undercarriage: The dealer offered subcoating as an add-on.

In pharmaceuticals, subcoating is applied to tablets before the final outer layer.

application

primer

Preparatory coat or guide

sealerCoating preventing moisture penetration
basecoatFoundational paint layer
gessoAbsorbent primer for canvases

sizing · underpainting · ground · binder · spray · brush · roller · airless · adhesion · coverage

protection

corrosion resistance

Immunity to chemical degradation

rust preventionStopping oxidation of metal
moisture barrierMaterial blocking water transfer
salt sprayAirborne ocean droplets

oxidation · galvanic · cathodic · anodic · sacrificial · weatherproofing · underbody · insulation

materials

epoxy

Catalyst-cured bonding compound

urethaneOrganic ester compound
polyurethaneVersatile synthetic resin compound
acrylicSynthetic resin or fiber

latex · alkyd · phenolic · vinyl · bituminous · rubberized · oil-based · water-based · solvent-based

substrate

metal

Hard conductive solid

steelCarbon-hardened iron alloy
aluminumElement thirteen
fiberglassReinforced woven strand composite

plastic · wood · concrete · bare metal · galvanized · ferrous · non-ferrous · composite · carbon fiber · sheet metal

Opposites

layer position

subcoatingtopcoat

Outermost garment layer

overcoat · finish coat · final coat · clear coat · top coat

function/purpose

subcoatingfinish

Bring to completion

glaze · enamel

Family

subcoat, subcoats, coat, coats, coated, coating, coatings, coater, uncoated

Familiarity: Top 1,000,000
Profile: Used worldwide · Timeless · Concrete · Rated G