POURING FOAM

NON‑CFC RIGID LOW DENSITY

POLYURETHANE FOAM SYSTEM

DESCRIPTION 

Pouring Foam is a flame retarded, NON‑CFC, two pack rigid polyurethane foam system producing foam with a nominal freerise density of 36‑38 kg/m3.

 Pouring Foam Polyol contains 141b ‑ HCFC 'Blowing Agent'. The ODP factor (Ozone Depletion Potential) for 141 B is 0.11.

 APPLICATIONS

 Pouring Foam is recommended for use as thermal insulation in cold and hot applications, from ‑50°C to +85°C temperature range.

 It is also suitable for use in 'buoyancy' applications ie. cavity/compartment/void filling for boats, wave‑skis, canoes etc. and in building panels, moulded fibreglass systems.

 It is suitable for moulding/void filling applications where low weight and increased stiffness/stability are required.

 It is suitable for pour‑in‑place or injection use by either 'hand' mixing or machine processing.

 FIRE HAZARD

 It should be noted that the Pouring Foam Polyol component contains flame retardant chemical additives at a low level. It is not fire‑rated and foam produced from this system will burn while in contact with a flame or under high temperature conditions.

The Building Code of Australia sets out the requirementsluse conditions and guidelines for the use of these systems in commercial and industrial building applications.

TECHNICAL DATA

 Mix Ratio

 One (1) Part of Polyol Pouring Foam to One (1) part lso Pouring Foam (or equivalent) by weight or 1:1 by volume.

 Reactivity Profile

 The figures set out are the laboratory quality control specification for the system at 200C based on 200gms of total mix mixed with a 50mm Disc Stirrer at 2,800 RPM.

Mix Time	20 Seconds
Cream Time	36 ± 4 Seconds
Gel Time	170 ± 10 Seconds
Tack Free Time	200 ± 20 Seconds
Free‑Rise Density	36 ± 1 kg/m3

For application, a temperature of 25C is suggested for both Polyol & lso. Each manufactured batch of Polyol is tested to comply with these QC Standards before it is released for sale. Any variation in standard performance should be investigated and corrected before processing.

 Specific Gravity of Components

Polyol	1.14 g/ml (25’C)
Iso	1.2 g/ml (25'C)

Physical Properties of Cured Foam (under laboratory test conditions)

Free‑Rise Density                35-37 kg/m3                                                                                                                                          36‑38 kg/m3

Closed Cell Content > 88%

Thermal Conductivity ‑ Initial Value   k factor W/m.K (typical result) 0.020/0.022 

Foam Test Density	Parallel to Rise	Perpendicular to Rise
37 kg/m3	> 240 kPa	>100kPa
50 kg/m3	>285 kPa	>245 kPa

Notes on Thermal Conductivity

In applications where impermeable facings are in place or applied to both faces eg. metal sheeting, metal foils, fibreglass lay‑up construction, and is adhered firmly over the whole surface of both sides of the foam, the foam will retain its

Initial k factor of typically 0.017/0.018 W/(m.K)   [0.015/0.016 kcal/(mh'C)]

 The R value ‑ Thermal Resistance on this basis is set out below

Pouring Foam Thickness mm	R Value* m2 K/W
100	4.76
50	2.38
25	1.19

(* at k = 0.018 W/m.K)

 Bayer AG Technical Literature indicates that at normal exposure temperature conditions %variations in thermal conductivity cannot be detected experimentally between (foam densities of) 30 and 60 kg/M3 . The variations due to differences in density are less than those caused by variations in the composition of the cell gas".

Comparison of Units ‑ Thermal Conductivity ‑ k

W/(m.K)	0.017	0.023	0.029
kcal/(mh'C)	0.015	0.020	0.025

1 W/m.K   equals	6.933 Btu.in/ft2h'F
1 Btu.in/ft2h'F  equals	0. 1442 W/m.K
1 kcal/mh'C equals	1. 163 W/m.K

 Dimensional Stability of the Pouring Foam System at 37 kg/m3 (based on AS2489.6)

% Change in dimension 

Dimension	7 Days Exposure	7 days exposure
	at - 15C	at 95C
Length	Nil	+2.95%
Width	-1.5%	+0.4%
Thickness	Nil	-1.7%