Modified Polyphenylene Oxide (PPO)

MATERIAL DATA SHEET The information contained herein is typical and intended for REFERENCE USE ONLY. This information should NOT be used as a basis for design, manufacturing or quality assurance purposes. Please contact us for complete, manufacturer-approved material property data sheets. All values below are at 72°F (23°) unless otherwise noted.

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Modified Polyphenylene Oxide (PPO) Specifications

Description

Modified PPO is a strong engineering plastic with outstanding mechanical, thermal, and electrical properties. Low moisture absorption and low thermal expansion make Modified PPO one of the most dimensionally stable thermoplastics available. Modified PPO is widely used for electrical housings and structural components since it has excellent insulating properties, flame resistance, and dimensional stability over a wide range of service temperatures. Modified PPO is often selected for fluid handling applications since it has low moisture absorption and excellent strength and stiffness. Modified PPO is easy to fabricate, paint, and glue.

Applications

Manifolds • Pump, valve, and fitting applications • Scientific and analytical instrument components • Housings • Covers • Electrical components

Advantages of Modified Polyphenylene Oxide (PPO)

Excellent dimensional stability • Low moisture absorption • Good strength and stiffness over a wide range of service temperatures • Good impact resistance • High dielectric strength • Easy to fabricate, paint, and glue • Excellent flammability rating (UL94 V-1 @ .058” thick)

Manufacturing Capabilities

Rod: 1/8” to 8” diameter • Sheet: .030” to 6” thick • Film: .005” to .029” thick

Color/Grades

Black (standard) • Glass-filled (gray) • (custom colors available) • FDA compliant grades available on a custom basis

Typical Properties of Modified Polyphenylene Oxide (PPO)

	Units	ASTM Test	EN-265	30% GF
Mechanical Properties
Flexural Modulus	psi	D790	370,000	830,000
Flexural Stregnth @yield	psi	D790	14,400	22,000
Hardness-Rockwell	-	D785	R119	L106
Izod Impact Strength Notched @-40°F	ft•lbs/in	D256	2.5	1.8
Izod Impact Strength Notched @73°F	ft•lbs/in	D256	3.5	2.0
Tensile Elongation @break	%	D638	25.0	5.0
Tensile Strength @yield	psi	D638	9,200	15,500
Thermal Properties
Coefficient of Thermal Expansion	in/in/°F	D696	3.3.x10-5	1.4x10-5
Flam. Rating-UL94 @ .058"	-	-	V-1	V-1
Flam. Rating-UL94 @ .236"	-	-	V-0	V-0
Heat Deflection Temp. @ 66 psi	°F	D648	-	280
Heat Deflection Temp. @ 264 psi	°F	D648	254	270
Electrical Properties
Dielectric Constant @ 60Hz	-	D150	2.69	2.15
Dielectric Strength	V/mil	D149	500	600
Dissapation Factor @ 60 Hz	-	D150	0.0007	0.0016
Other Properties
Specific Gravity	-	D792	1.08	1.23
Water Absorption @ 24 hrs	%	D570	0.070	0.060