CERTIFICATIONS

PROTHERM LIGHT®

PREMIXED, LIGHTWEIGHT, AND THERMALLY INSULATING PLASTER FOR FIRE PROTECTION

PROTHERM LIGHT® is the lightweight, thermally insulating pre-mixed plaster used to increase the fire resistance of structural elements – steel, reinforced and prestressed concrete, masonry and composite steel-concrete slabs – in residential, commercial and industrial buildings, new or existing, indoors and outdoors.

Made with EPS beads, hydraulic binders and special additives, it is non-combustible (class A1), lightweight (about 18.7 lb/ft³ (300 kg/m³)), breathable and water-repellent, with very good resistance to weathering. It has been tested to EN 13381 and has a European Technical Assessment ETA 18-1111: the classification reports are used to determine the coating thickness needed for the required fire resistance class.

It is sprayed with a plastering machine (PFT G4, G5 type), in a single coat up to 13/16 in (20 mm) or in several coats. Consumption is about 1.6 lb/ft² per inch of thickness (3 kg/m² per cm); surface drying in 24 hours. Available in white and gray.

NOTE

Class A1
Available in white and gray
For indoor and outdoor use

Density about 18.7 lb/ft³ (300 kg/m³); reaction to fire A1 (EN 13501-1).
Compressive strength 141 psi (0.97 N/mm²) (EN ISO 12390-3); flexural strength 51 psi (0.35 N/mm²) (EN ISO 12390-5).
Thermal conductivity λD 0.55 BTU·in/(h·ft²·°F) (0.079 W/(m·K)); μ 9.
Surface drying 24 h (68 °F (+20 °C), natural ventilation).
ETA 18-1111 – tests EN 13381-3 (concrete), -4 (steel), -5 (composite slabs), -1 (horizontal membranes).
Consumption about 1.6 lb/ft² per inch of thickness (3 kg/m² per cm) (1 bag ≈ 65 ft² (≈ 6 m²) at 13/32 in (1 cm)).
40 lb (18 kg) bag; pallet of 44 bags. Machine application from 41 to 95 °F (+5 to +35 °C).