Glazing guide – Palram PALGAR User Manual

Page 12

PALSUN® PALGARD™

Glazing Guide

10. Flammability:
General Comment: As a thermoplastic, regular PALSUN eventually melts and burns under the intense
heat of a blazing fire. However, PALSUN does not propagate flame. It solidifies and self-extinguishes as
soon as the direct flame is taken away.
Regular PALGARD behavior is the same, though when silica coated on both sides the coats help to retard
the glazing from catching fire for a few more minutes, as silica is inert to fire.

PALSUN® FR: Flame retardant additives make the sheets virtually non-combustible. When the flame
licks the glazing it only gets scorched and eventually melts, solidifying quickly when the direct heat
source is removed.

Drippings do not ignite other combustible materials, as they actually do not burn.

Smoke and heat extraction: In an actual full-scale combustion, when PALSUN overhead glazing (as in
skylights) is exposed to intense heat it will soften at 150° -160°C and eventually produce apertures in the
glazing, enabling heat and smoke to escape, thus reducing temperatures inside the structure and
extracting the asphyxiating smoke. It helps cooling the interior and facilitates firemen duty in
extinguishing the fire.

Flammability Classifications: PALSUN & PALSUN FR, same as parallel PALGARD, are classified as appears
in the following table, based on tests executed by certified independent testing laboratories.

Table 8: PALSUN® Fire Classifications listed according to the relevant codes or standards
PALSUN® Type

Standard

Country Description

Classification

DIN 4102

Germany

B-1

BS 476/7

Clear

Class 1Y

NSP 92501, 4

France

Clear

M-1, M-2 (

depend on

thkns)

CSE RF 2/75/A CSE RF 3/77

Italy

Class 1

Regular PALSUN

PALGARD

UL-94

USA

V-0, V-1, V-2*

NSP 92501, 4

France

Clear

M-1

UL-94 Clear/Opaque V-0
ASTM D-2863-87

USA

Clear/Opaque LO.I. = 30

Ignitability Index = 9
Spread of Flame Index = 8
Heat Evolved Index = 10

PALSUN FR

PALGARD FR

AU 1530.3-1982

Australia

All

Smoke Developed Index = 8

Note: *Classification depends on