Foamex - StyroBloc

StyroBloc by Foamex is a lightweight, durable, economical and versatile expanded polystyrene block that is easy to cut and shape for use across a range of applications.

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Manufactured in Australia from Styroboard EPS expanded polystyrene, StyroBloc EPS blocks are lightweight for easy installation, weather resistant, long-lasting, and provide high levels of thermal insulation and acoustic benefits.

StyroBloc can be shaped, cut or laminated to your suit your specific requirements. A versatile product, StyroBloc can be used across a range of building & construction applications from void filler through to pipe insulation, coolroom insulation and intricate architectural mouldings.

StyroBloc is also a popular choice for retail and creative applications, including event props and even model making.

Why StyroBloc?

Lightweight & easy to install
Versatile & cost effective
Excellent thermal insulation properties
Weather resistant with low moisture absorption
Retains its structural integrity ensuring long term R values
Environmentally responsible & fully recyclable
Complies with Australian Building Standards AS1366 Part 3 – 1992

Applications

Void filler
Coolroom insulation
Retail signage
Model making
Event props

Product Specifications

PHYSICAL PROPERTIES	UNIT	CLASS
		L	SL	S	M	H	VH	VHH32	VHH36	VHH38
Compressive stress at 10% deformation, min.	kPa	50	70	85	105	135	165	250	300	350
Cross breaking strength, min.	kPa	95	135	165	200	260	320	500	550	600
Rate of vapour transmission, max. measured parallel to rise at 23°C	μg/m2.s	710	630	580	520	450	400	340	280	220
Max. dimensional stability of length, width and thickness, 7 days at 70°C	%	1	1	1	1	1	1	1	1	1
Min. thermal resistance (50mm sample) at a mean temperature of 25°C	m2K/W R(50/90)	1	1.20	1.22	1.25	1.40	1.41	1.43	1.45	1.5

OTHER PROPERTIES	UNIT	CLASS
		L	SL	S	M	H	VH	VHH32	VHH36	VHH38
Density - nominal	kg/m3	11	13.5	16	19	24	28	32	36	38
Compressive strength at 1% deformation, max.	kPa	14	23	31	42	58	60	63	65	70
Compressive strength at 5% deformation, max.	kPa	33	59	68	95	134	164	230	290	340
Flexural strength, min.	kPa	60	150	178	218	304	337	362	385	413
Elastic modulus, min.	kPa	1450	2200	3100	4250	5850	7250	8650	9850	10950
Water absorption by total immersion, max.	Vol%	4	4	4	3	3	2	2	1	1
Buoyancy force	kg/m3	989	986.5	984	981	976	972	968	965	963
Coefficient of thermal expansion	m/m deg K	6.3x10-5	6.3x10-5	6.3x10-5	6.3x10-5	6.3x10-5	6.3x10-5	6.3x10-6	6.3x10-7	6.3x10-8

NB: This information is based on our current knowledge and experience. In view of the many factors that may affect processing and application, this data does not relieve the purchaser of the responsibility of carrying out their own tests and experiments; neither do they imply any legally binding assurance of certain properties or of suitability for a specific purpose. It is the responsibility of those to whom we supply our products to ensure that any proprietary rights and existing laws and legislations are observed.