Reference

Painting Glossary

Plain-English definitions for every painting term used across PaintLikePro. Use this as a reference when reading our reviews and guides — or directly when a paint-can label uses a word you don't know.

A

Acrylic Latex Paint: A water-based paint where the binder is an acrylic polymer suspended in water. Cleans up with water, dries fast, low odor. The standard interior and exterior wall paint in 2026 — replacing solvent-based oil paints almost entirely.
Alkyd Paint: A solvent-based paint binder traditionally used for trim, doors, and cabinets due to its hard, durable finish. Mostly replaced in 2026 by water-based hybrid alkyds (waterborne alkyds) that level like oil but clean up like latex.
Airless Sprayer: A paint sprayer that pressurizes paint to 2,000–3,000 PSI through a tiny tip without using air. Fast, powerful, handles thick paint without thinning. Higher overspray than HVLP. Ideal for fences, decks, exterior siding, and large surfaces. The Graco Magnum line is the leading consumer airless brand.

B

Binder: The component of paint that holds pigment particles together and binds them to the surface as the paint dries. Acrylic, alkyd, and shellac are common binders. Higher-quality paints have more (and better) binder per gallon.

C

Cure Time: The time required for paint to fully harden and reach maximum durability. Distinct from dry time. Most latex paints are touch-dry in 1–2 hours but take 2–4 weeks to fully cure. Avoid scrubbing or hanging items during cure.
Cut In: The technique of painting along edges (ceilings, trim, corners) with a brush before rolling the main wall surface. Done correctly, the brushed and rolled paint blend seamlessly. The single biggest skill that separates pro from DIY finishes.

D

Dry Time: How long paint takes to feel dry to the touch. Different from cure time. Latex eggshell typically dries in 1 hour, recoat in 2–4 hours, full cure in 2–4 weeks.

E

Eggshell: A low-sheen finish between flat and satin — slightly reflective like an actual eggshell. The most common interior wall finish in 2026: low enough sheen to hide imperfections, high enough to wipe clean.

F

Feathering: Brush technique of lifting the brush gradually at the end of a stroke to taper the paint film, eliminating hard edges between strokes. Essential when brushing trim and cutting in.
Flat Finish: A non-reflective sheen that hides surface imperfections best. Difficult to clean — marks tend to set in. Good for ceilings and low-traffic adult bedrooms; not recommended for kitchens, hallways, or kids' rooms.
Flagging: When brush bristles bend sideways under pressure, smearing paint instead of laying it down cleanly. Caused by thick paint plus a stiffness-deficient brush. Quality brushes (like Purdy XL Elite) resist flagging via stiffer filament blends.
Filament Blend: The mix of synthetic fibers (nylon, polyester, Chinex) used in a paintbrush. Chinex adds stiffness for thick latex paints; nylon adds flex for fine work. Premium brushes use proprietary blends like Purdy's Tynex/Orel/Chinex.
Flashing: When a touch-up or second coat appears as a slightly different sheen or color than the surrounding paint. Caused by applying paint outside its recoat window, by uneven absorption, or by missed primer steps. Visible especially under raking light.

H

Hide: How well a paint covers the previous color in a single coat. Higher hide = fewer coats needed. Determined by pigment volume concentration and binder quality. Premium paints like Behr Marquee and SW Emerald have excellent hide.
HVLP: High Volume Low Pressure — a paint sprayer technology that uses a turbine to atomize paint with high air volume at low pressure. Lower overspray, smoother finish, slower than airless. Ideal for cabinets, furniture, and trim. The Wagner FLEXiO 590 is a popular HVLP rig.

L

Lap Mark: A visible line where two roller passes meet, caused by paint drying on one section before the next is rolled. Prevented by maintaining a wet edge — keep rolling into still-wet paint, never into dry paint.
Limewash: A traditional mineral-based paint made from slaked lime and water. Creates a soft, matte, slightly mottled finish. Breathable, naturally antimicrobial. The 2026 Pinterest texture trend. See our [limewash how-to guide](/articles/techniques/how-to-apply-limewash-paint).

M

Mineral Spirits: A petroleum-based solvent used to thin oil-based paints and clean oil-based brushes. Also called paint thinner. Replaced by water for latex paints — never use mineral spirits with acrylic latex.

O

One-Coat Coverage: When a paint hides the previous color completely in a single coat. Achievable on like-tone repaints with premium paints (Behr Marquee, SW Emerald, BM Aura). Not achievable on dramatic color shifts (white-over-navy, dark-over-light) regardless of paint quality.

P

Pigment Volume Concentration (PVC): The ratio of pigment to total solids in paint. Higher PVC = more color particles per gallon = better hide and better long-term durability. Premium paints have higher PVC than budget paints — the reason a gallon of Behr Marquee feels heavier than Behr Premium Plus.
Primer: A preparatory coat that creates a uniform surface for the topcoat. Used to seal porous surfaces (bare drywall, wood), block stains (water marks, knots), or transition between dramatically different colors. Skipping primer when needed leads to uneven coverage and adhesion failures.
PaintBlock: FrogTape's patented polymer additive that reacts with the water in latex paint and gels at the tape edge, sealing micro-gaps before paint can creep underneath. The reason FrogTape Multi-Surface beats ScotchBlue Original on textured walls. See our [FrogTape vs ScotchBlue comparison](/buying-guides/frogtape-vs-scotchblue).

R

Rheology: The science of how paint flows. Tuned rheology = paint that levels well on the wall (no roller marks, no brush strokes) but doesn't drip on application. Premium paints have engineered rheology profiles. Tightly tied to viscosity and binder chemistry.
Recoat Window: The time between applying one coat and being able to safely apply the next. Too soon = paint pulls up. Too late = poor adhesion (paint may flash on touch-up). Most latex eggshell has a 2–4 hour recoat window. Behr Marquee has a tight 1-hour window — apply the second coat promptly.

S

Self-Priming Paint: A paint formulated to function as both primer and topcoat in one product. Works on most clean, previously-painted surfaces. Does NOT replace a stain-blocking primer for water marks, smoke, or knots. Behr Marquee and Behr Ultra are common self-priming examples.
Satin Finish: A medium-sheen finish, between eggshell and semi-gloss. Easier to clean than eggshell but shows more imperfections. Common choice for kitchens, bathrooms, and kids' rooms.
Semi-Gloss: A high-sheen finish with strong reflectivity. Easiest to clean, most durable. Best for trim, doors, cabinets, and high-moisture areas (bathrooms with daily showers). Shows surface imperfections more than lower sheens.
Sheen: How reflective a paint finish is. Common sheens from least to most reflective: flat, matte, eggshell, satin, semi-gloss, gloss. Higher sheen = more washable but shows more imperfections.
Shellac Primer: A primer made from shellac (insect resin) dissolved in alcohol. The strongest stain-blocking primer available — handles water stains, smoke damage, knots, and odors that other primers can't. Zinsser BIN is the dominant brand. Cleans up with denatured alcohol.
Solids Content: The percentage of paint that remains on the wall after the water (or solvent) evaporates. Higher solids = thicker dried film = better hide and durability. Premium paints typically have 35–45% solids; budget paints 25–35%.
Stain-Blocking: The ability of a paint or primer to prevent stains (water, smoke, tannins, ink) from bleeding through to the topcoat. Shellac primers (Zinsser BIN) are the gold standard. Some premium topcoats (Behr Marquee) include stain-blocking polymers.
Self-Leveling: When wet paint flows out and smooths itself on the surface, eliminating roller marks and brush strokes. Top-tier paints (BM Aura, SW Emerald) are known for excellent self-leveling. Achieved via tuned rheology and specific binder formulations.

T

Tape Edge: The line of paint where painter's tape was applied. A clean tape edge = sharp paint line. Achieved via firm tape application (run a putty knife along the edge), the right tape type for the surface, and proper tape removal (45° angle, while paint is still tacky).

V

Venetian Plaster: A traditional Italian wall finish made from polished lime and marble dust. Creates a smooth, marble-like sheen with depth. Listed as 2026's Texture of the Year. Distinct from limewash (matte, mottled) — Venetian plaster is polished and reflective. See our [comparison guide](/articles/techniques/microcement-vs-limewash-vs-tadelakt).
VOC (Volatile Organic Compounds): Chemicals that evaporate from paint as it dries, contributing to that 'paint smell' and to indoor air pollution. Low-VOC paints (under 50 g/L) are the 2026 standard for interior use. Behr Marquee is rated <50 g/L; many designer colors and some specialty paints exceed 100 g/L. Look for GreenGuard Gold certification for the strictest standard.

W

Wet Edge: The leading edge of freshly painted wall that's still wet enough to blend into the next stroke. Maintaining a wet edge while rolling prevents lap marks. Lose the wet edge (paint dries before you reach it) and you'll see a visible line where the strokes meet.

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