Nailhead Rusting

Exterior Paint Solution

 
 

Nailhead Rusting: Reddish-brown stains on the paint surface.

Possible Causes:

Non-galvanized iron nails have begun to rust, causing bleed-through to the top coat.

Non-galvanized iron nails have not been countersunk and filled over.

Galvanized nail heads have begun to rust after sanding or excessive weathering.

Solution:

When painting new exterior construction where non-galvanized nails have been used, it is advisable to first countersink the nail heads, then caulk them with a top quality, water-based all-acrylic or siliconized acrylic caulk. Each nail head area should be spot primed, then painted with a quality latex coating. When repainting exteriors where nail head rusting has occurred, wash off rust stains, sand the nail heads, then follow the same surface preparation procedures as for new construction.

 

Interior Paint Problems

 

Exterior Paint Problems

Blistering

Burnishing

Blocking

Caulk Failures

Cracking - Flaking

Foaming - Cratering

Lapping

Mud Cracking

Mildew

Picture Framing

Poor Scrub Resistance

Poor Sheen Uniformity

Poor Stain Resistance

Poor Flow - Leveling

Poor Hiding

Roller Marks - Stipple

Roller Spattering

Sagging

Surfactant Leaching

Wrinkling

Yellowing

 

Alligatoring
Blistering

Chalk Run down
Chalking
Cracking Flaking

Dirt Pickup
Efflorescence - Mottling
Fading-Poor Color Retention
Frosting

Lapping

Mildew

Nailhead Rusting

Paint Incompatibility

Peeling
Poor Galvanized Metal Adhesion
Poor Alkali Resistance
Poor Gloss Retention

Surfactant Leaching

Tannin Staining

Vinyl Siding Warp

Wax Bleed

Wrinkling

 

 

 

 
 
 
 
 

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