Chemical Composition of Brick Paint vs. Mortar in German Smear: Breathability, Efflorescence, and Moisture Trapping Explained
Brick, Paint, Brick Paint, Painted Brick, German Smear, Curb Appeal Upgrades, Details of German Smear German Smear Specialists Brick, Paint, Brick Paint, Painted Brick, German Smear, Curb Appeal Upgrades, Details of German Smear German Smear Specialists

Chemical Composition of Brick Paint vs. Mortar in German Smear: Breathability, Efflorescence, and Moisture Trapping Explained

Modern exterior masonry paints contain acrylic or vinyl polymers that form an impermeable film over brick, trapping moisture and often triggering efflorescence. In contrast, the mortar used in authentic German Smear is primarily lime-based or lime-dominant, remaining highly vapor-permeable throughout its service life. This fundamental difference in chemical composition explains why painted brick frequently spalls and stains while German Schmear allows brick to breathe naturally.

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