Sheet Insulation 32mm x 3m x 1m Armaflex CO-32mm/E Class O
[L456]

CLASS O ARMAFLEX - The professional insulation that prevents condensation and energy losses

Class O Armaflex is the flexible, closed cell, elastomeric, nitrile rubber insulation that offers reliable protection against condensation and effectively prevents energy loss.
A highly efficient method of insulating hot and cold water services, chilled water lines, heating systems, air conditioning duct work and refrigerated pipe work for frost protection, energy conservation and condensation control. Armaflex is dust free, fibre free and CFC free with an ODP of zero which means an environmentally friendly product.

The Competitive Advantage of Specifying Class O Armaflex

Built in vapour barrier prevents condensation
Reduces energy losses by up to 87%
Lightweight and flexible, quick and easy installation with low maintenance requirements, resulting in time and cost savings
Excellent resistance to the effects of ozone, oil and chemicals (consult product test list)

Application Areas

Process work
Hot and cold water services
Chilled water lines
Heating systems
Air conditioning ductwork
Refrigeration pipework and ancillary equipment

Properties	Values	Remarks
Material	Foamed nitrile rubber
Max. Surface Temperature	+105°C
Max. Temperature for Flat Surface	+85°C
Min. Surface Temperature	-200°C*	* For temperatures between -50° C and - 200° C, please consult our Technical Department.
Thermal Conductivity at 0°C	0.034 W/(m · K)	Test acc. to EN ISO 8497
Thermal Conductivity at +20°C	0.036 W/(m · K)
Thermal Conductivity at +40°C	0.038 W/(m · K)
Water Vapour Permeability	Moisture Resistance Factor µ: 7,000
	2.79 · 10(-14) kg/(m s Pa)	BS EN ISO 9346:1996
Water Absorption	0.2% by volume	Test acc. ASTM C 209
Surface Spread of Flames	Class 1	Surface Spread of Flame acc. BS 476 Part 7: 1997
Fire Propagation	Total Index Performance (I) ≤ 12 Sub Index (i1) ≤ 6	Fire Propagation acc. BS 476 Part 6: 1989
Fire Performance acc. to Building Regulation	Class O	Test results for Surface Spread of Flames and Fire Propagation meets Class O fire category for
		Building Regulations 2000 (England and Wales)
		Building Standards (Scotland) Regulations 1990
		Building Regulations 2000 (Northern Ireland)
		Building Regulations 1997 (Republic of Ireland)
Reaction to fire	Self-extinguishing, does not drip
Noise Reduction	Sound Absorption Coefficient ISO 354:2003 up to 0.8	Also suitable for use in the prevention of sound passage
Resistance to	Building Materials: Very Good Chemicals: Consult Product Test List Ozone: Very Good
Environmental Aspects	ODP zero, GWP zero
Health Aspects	Dust & Fibre Free Microban anti-microbial protection
Other Properties	FM Approved Tested in accordance with UL 94
Outdoor Applications	Class O Armaflex should be painted with Armafinish FR paint to the recommended thickness within 3 days. Two or more coats may be required.

Soundproofing properties.

Armaflex is a flexible closed cell elastomeric sheet with a Class O fire rating and energy saving thermal performance. Being a closed cell material, Armaflex requires no external vapour barrier and will not absorb moisture by "wicking".

Armaflex has the unique capability of providing significant sound absorption while remaining completely closed cell. Aerodynamic and fan noise within the ducting can be reduced when Armaflex is used as an internal lining. Due to its excellent thermal values, Armaflex also performs as a thermal insulator which negates the need for additional thermal insulation on the exterior of the ductwork.

When Armaflex is used as an external acoustic lining, noise break-out from the duct wall can be significantly reduced. Further improvements can be achieved when Armaflex is used in combination with ArmaSound RD and Arma-Chek R.

Class O Armaflex now also comes with Microban anti-microbial protection built-in, offering enhanced resistance against bacteria and mould growth. This makes Class O Armaflex suitable for use in offices, schools and hospitals.

Armaflex is dust, fibre and formaldehyde free, and inhibits the onset of "sick building syndrome".
Benefits and Special Product Attributes

New! Built-In Anti-Microbial Protection Reduces Mould and Bacteria Growth
Dust and fibre free insulation with thermal and acoustic properties
Impressive airborne noise absorption at problem frequencies
Meets recommended Part L energy performance when internally lining ductwork -1-
Excellent de-coupling and isolation performance on pipes and ducts in contact with other structural and service elements
Suitable for use in areas of high humidity and areas with possible oil and chemical contact
-1- Applies to warm ductwork only at 32 mm thickness. Assumes a high emissivity ductwork finish.

» Applications Areas

	Ductwork	Plant Room	Enclosures	Service Water Pipes
Propagation Noise
Internal Noise
Acoustic Bridging

» Acoustic Performance

Octave band absorption coefficient acc. to EN ISO 354	Octave band centre frequency, Hz
	125	250	500	1 000	2 000	4 000
at 10 mm sheet	0.02	0.04	0.08	0.19	0.53	0.44
at 32 mm sheet	0.08	0.17	0.51	0.56	0.25	0.24

acc. to EN ISO 11654	at 10mm	at 32 mm
Weighted Sound Absorption Coefficient αw	0.20 (H)	0.35
Sound Absorption Class	Class: E	Class: D

acc. to ASTM C423	at 10mm	at 32 mm
NRC Rating	0.20	0.35