Free Encyclopedia of Building & Environmental Inspection, Testing, Diagnosis, Repair
Ask a Question or Search InspectAPedia
InspectAPedia ® Home
EXTERIORS of buildings
ALGAE, FUNGUS, LICHENS, MOSS
ART CONSERVATION - Cultural Heritage and Aerobiology
ARTWORK MOLD CONTAMINATION
BOOKSTORE - EXTERIORS
CAULKS & SEALANTS, EXTERIOR
DECK FINISHES COATINGS PRESERVATIVES
EIFS & STUCCO EXTERIORS
EXTERIOR WALL SIDING TRIM & FINISHES
FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP
LEAD POISONING HAZARDS GUIDE
LEAD PAINT REMOVAL ALTERNATIVES
LEAD PAINT REMOVAL TROUBLES
PAINT & STAIN GUIDE, EXTERIOR
SLIDE PREPARATION, MICROSCOPE
STAIN & BIODETERIORATION AGENT CATALOG
STAINS on & in BUILDINGS, CAUSES & CURES
STAIN DIAGNOSIS on BUILDING EXTERIORS
STAIN DIAGNOSIS on BUILDING INTERIORS
STAINS & FINISHES, INTERIOR
STUCCO PAINT FAILURES
TEST KITS for DUST, MOLD, PARTICLE TESTS
TRIM, EXTERIOR CHOICES, INSTALLATION
VAPOR BARRIERS & CONDENSATION in BUILDINGS
WALL SIDING TRIM & FINISHES
WALL FINISHES INTERIOR
Using the wrong paint - the role of incompatible paints in building paint job failure. Here we explain how and why using incompatible types of paint in successive coatings can lead to paint failure on a building interior or exterior surface.
This article series reviews common building exterior & interior painting mistakes, describes how to diagnose paint failures on buildings, and outlines a procedure for diagnostic field inspection & lab testing of failed painted surfaces. We include photographs of paint failures on buildings and more photos of forensic paint laboratory examination of samples of failed paint useful to assist in diagnosing the probable cause of each type of paint failure.
Readers should also see Paint Failure Case Photographs-SITE and then Paint Failure Case Photographs-LAB, and see PAINT & STAIN GUIDE, EXTERIOR for a guide to the selection and proper application of paints and stains on exterior wood surfaces.
Green links show where you are. © Copyright 2013 InspectAPedia.com, All Rights Reserved. Author Daniel Friedman.
Our photo shows an exterior paint failure that occurred when a mix up led to both interior paints and defective paint product used on a building exterior. The white primer was intact. The color coat began peeling even during the paint job.
Paint failures can occur, such as failure of a paint to bond with a surface, failure of inter-coat bonding, or even dissolving of one paint coat by another, if incompatible paints are applied to a surface. For example, surfactant leaching can occur if there is an incompatibility between the primer coat and the finish coat. Paint chemists formulate primers and topcoats to work together as a tested and proven paint coating system.
There are lots of examples of using the wrong paint (besides the incompatible paints discussed above.
Be sure to follow the recommendations of your paint supplier and paint manufacturer in choosing the right paint for the proper application.
Frequently Asked Questions (FAQs)
Use the search box below to ask a question or to search the InspectApedia.com website.
Ask a Question or Enter Search Terms in the InspectApedia search box just below.
Technical Reviewers & References
Related Topics, found near the top of this page suggest articles closely related to this one.
Paint & Fiber Forensic Analysis, Diagnosis, Conservation