
SIMFY FIRESYS
Intumescent Sealant: How It Works and Where It Belongs
Intumescent sealant swells under heat to close a gap. See how it differs from ablative and acrylic, and why its EI rating only holds in a…
August 28, 2026Read more →
More notes that apply to Europe.

SIMFY FIRESYS
Intumescent sealant swells under heat to close a gap. See how it differs from ablative and acrylic, and why its EI rating only holds in a…

SIMFY FIRESYS
Fire stopping explained for buyers: penetration seals, linear gap seals, which test applies, and why a firestop rating belongs to a tested system.

SIMFY FIRESYS
Passive fire protection explained for buyers: what EI ratings mean, which test applies to each product family, and why a rating belongs to a tested system.