ASICO offers a complete line of 1 3/4’’ thick labeled fire doors to meet most fire protection requirements. The construction conforms to fire door procedure.
Fire resistance from 20 minutes to 180 minutes.
Many people are curious with the infilling material of the metal fire door, here we will introduce some common choices.
There are four kinds of fire door infilling for selection:
A. Honeycomb core
B. Rock wool core
C. Polyurethane
D. Steel Stiffener
The four kinds of infilling cores has different function and characters, there are Comparison tables to show the detailed specification.
Specification Infilling | Honeycomb paper | Rockwool | Polystyrene Foam | Steel stiffener |
Feature | Continuous Paper Honeycomb Core is a perfect hexagonal shaped strong and lightweight core or filling material, made of 100% recycled paper | Rockwool is made by melting diabase rock mixed with coke and limestone and converting them into fibers | Polystyrene is an organic thermoplastic elastomer formed by the polymerization of styrene or vinyl benzene | Could be infilling with Fiberglass insulation, honeycomb, rock wool etc. |
Heat Insulation | There’re fire proof ,No Visual Fire | excellent resistance to high temperatures | Thermal & cold insulation，heat preservation | As per filling material |
Sound Insulation | Poor Sound Insulation | Better Sound Insulation | Good Sound Insulation | As per filling material |
Density | 150kgs/m³ | 100kgs/m³ | 50kgs/m³ | As per filling material |
Suitable place | used for interior and exterior openings where high thermal insulation is not required. | Used for cold weather outside door. | are suitable for applications with good insulation, this core is available in non fire rated and fire rated doors... | are used where durability and security are important， like bank. also Suitable for hurricane resistant public places.
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