Insulation

COMPARISON OF TECHNICAL SPECIFICATION
S. No.	Properties	Unit	Expanded Polyethylene Foam (PE)	Expanded Polystrene (Thermocole)	Polyethylene Foam (PUF)
1	Physical Form		Closed cell Structure	Air - filled closed cellular rigid thermoplastic foam	Freon - filled closed cellular rigid plastic foam
2	Density	Kg ./ cu. mtr.	26+/- 2 Kg.m3	12 to 24 Kg.m3	36+/- 2 Kg.m3
3	Thermal Conductivity	KCal. / M.HrºC	0.025	0.028	0.014
4	Compressive Strength	KN / sq. mtr.	35 - 50	70 - 100	172
5	Water Absorption	After 24 hr.	0.02%	Less then 2.0%	Negligible
6	Water Vapour Transmission	gm / m2 / hr.	0.83	0.38	0.4
7	Service Temperature	º C	-30 to +50	-200 to +70	-200 to +130