How paint actually works
Reference pieces — sheens, primers, paint chemistry, color theory, undertones. Skim it, save it, send it to the friend who keeps asking what eggshell means.
How Much Paint Do You Actually Need? Coverage Math, Explained
The 350–400 sq ft per gallon spec, what it really means at 4 mils wet, and how to translate it into the right number of gallons for your room or house.
Dry Time vs Cure Time: Why 'Dry to Touch' Doesn't Mean Ready
The five drying stages of latex, alkyd, and epoxy paint, in hours and days. The chemistry behind film formation and why full hardness lags touch-dry by a week or more.
What Is Elastomeric Paint? High-Build, Crack-Bridging Coatings, Explained
Elastomeric paint is a 10–20 mil flexible acrylic coating engineered to bridge hairline cracks in masonry. Where it wins, where it's overkill, and what ASTM crack-bridging spec actually means.
Paint vs Stain: The Chemistry Difference, and Where Each One Wins
Paint forms a film on top of the substrate; stain delivers pigment into wood fiber. Here's the chemistry, the substrate map, and the maintenance trade-off.
Primer vs Paint-and-Primer-in-One: When the Marketing Claim Actually Works
Self-priming paint works on four jobs and fails on seven. The honest field guide to when to skip primer and when skipping it costs you a $2,000 repaint.
Scrubbability vs Washability: What the Cycle Count on the Spec Sheet Actually Means
ASTM D2486 explained — how scrub cycles get measured, what Class I/II/III mean, and the cure-time and sheen catches that decide whether your wall paint earns its rating.
What Are VOCs in Paint? Numbers, Rules, and What Actually Off-Gasses
Volatile organic compounds in paint, explained in g/L and µg/m³. EPA, OTC, SCAQMD, and GreenGuard thresholds, plus what 'zero VOC' actually means at the can.
What Is LRV? Light Reflectance Value, Explained
LRV is the number that tells you how a paint color will actually behave once light hits it. Here's how to read it and why it matters more than the chip.
Paint Sheen Guide: Matte vs Eggshell vs Satin vs Semi-Gloss vs Gloss
Five sheen levels, gloss-unit numbers for each, and which one belongs in which room. The reference page you can text to a friend.