Data Sheet

CALIBRE™ 303-15

Dow Plastics - Polycarbonate

General Information

Product Description

CALIBRE 300 series resins are general purpose, UL listed polycarbonate resins. CALIBRE 300 series resins exhibit an excellent physical property balance of heat resistance and impact strength. The CALIBRE 300 series can be supplied with a mold release package, a UV stabilizer package or both.

The CALIBRE 300 series resins are typically used for appliances, storage media housings, extruded sheet, electrical components and lighting.

Available Melt Flow Rates:
6, 10, 15, (22MFR in 303EP).

Associated products:
CALIBRE 300: without a mold release and UV stabilization package
CALIBRE 301: including a mold release package
CALIBRE 302: including a UV stabilizer package
CALIBRE 303: including a mold release and UV stabilizer package.

General

Material Status

Commercial: Active

Availability

Asia

Europe

Latin America

North America

Test Standards Available

ASTM

ISO 10350

Additive

Mold Release

UV Stabilizer

Agency Ratings

UL 94

Forms

Pellets

Processing Method

Injection Molding

ASTM and ISO Properties ¹
Physical	Nominal Value	Unit	Test Method
Density -Specific Gravity	1.20	sp gr 23/23°C	ASTM D792
Melt Mass-Flow Rate (MFR) (300°C/1.2 kg)	15.0	g/10 min	ASTM D1238
Mold Shrink, Linear-Flow	0.0050 to 0.0070	in/in	ASTM D955
Water Absorption @ 24 hrs (73 °F)	0.15	%	ASTM D570
Water Absorption @ Equil (50% RH, 73 °F)	0.32	%	ASTM D570
Mechanical	Nominal Value	Unit	Test Method
Tensile Modulus ²	340000	psi	ASTM D638
Tensile Strength @ Yield ²	8700	psi	ASTM D638
Tensile Strength @ Break ²	10300	psi	ASTM D638
Tensile Elongation @ Brk ²	150	%	ASTM D638
Flexural Modulus ³	350000	psi	ASTM D790
Flexural Strength ³	14000	psi	ASTM D790
Impact	Nominal Value	Unit	Test Method
Notched Izod Impact (73 °F, 0.125 in) ⁴	16.0	ft-lb/in	ASTM D256
Unnotched Izod Impact (73 °F)	No Break	ft-lb/in	ASTM D256
Instrumented Dart Impact (73 °F, 0.125 in) ⁵	Total Energy: 770	in-lb	ASTM D3763
Tensile Impact Strength (73 °F) ⁶	220	ft-lb/in²	ASTM D1822
Hardness	Nominal Value	Unit	Test Method
Rockwell Hardness (R-Scale)	118		ASTM D785
Thermal	Nominal Value	Unit	Test Method
DTUL @66psi - Annealed (0.157 in)	289	°F	ASTM D648
DTUL @264psi - Unannealed (0.125 in)	260	°F	ASTM D648
DTUL @264psi - Annealed (0.157 in)	284	°F	ASTM D648
Vicat Softening Point	298	°F	ASTM D1525
CLTE, Flow (-40 to 180°F (-40 to 82°C))	0.000038	in/in/°F	ASTM D696
Electrical	Nominal Value	Unit	Test Method
Volume Resistivity	2.0E+17	ohm-cm	ASTM D257
Dielectric Strength	420	V/mil	ASTM D149
Dielectric Constant			ASTM D150
(60 Hz)	3.000
(1E+6 Hz)	3.000
Dissipation Factor			ASTM D150
(60 Hz)	0.0010
(1E+6 Hz)	0.0020
Flammability	Nominal Value	Unit	Test Method
Flame Rating - UL			UL 94
(0.0591 in)	HB
(0.118 in)	HB
Limiting Oxygen Index	26	%	ASTM D2863
Optical	Nominal Value	Unit	Test Method
Refractive Index	1.586		ASTM D542
Transmittance	89.0	%	ASTM D1003
Haze	1.0	%	ASTM D1003

Properties
Rheological properties	Nominal Value	Unit	Test Method
Melt volume-flow rate (300°C/1.2 kg)	0.732	in³/10min	ISO 1133
Mechanical properties 23°C/50%r.h.	Nominal Value	Unit	Test Method
Tensile modulus	334000	psi	ISO 527-1, -2
Yield stress	8700	psi	ISO 527-1, -2
Yield strain	6.0	%	ISO 527-1, -2
Nominal strain at break	> 50.0	%	ISO 527-1, -2
Charpy impact strength (+23°C)	No Break	ft-lb/in²	ISO 179 /1eU
Charpy impact strength (-30°C)	No Break	ft-lb/in²	ISO 179 /1eU
Charpy notched impact strength (+23°C)	38.1	ft-lb/in²	ISO 179 /1eA
Charpy notched impact strength (-30°C)	5.71	ft-lb/in²	ISO 179 /1eA
Thermal properties	Nominal Value	Unit	Test Method
Temp. of deflection under load (1.80 MPa)	266	°F	ISO 75-1, -2
Temp. of deflection under load (0.45 MPa)	291	°F	ISO 75-1, -2
Vicat softening temperature (50°C/h 50N)	298	°F	ISO 306
Coeff.of linear therm. expansion (parallel)	0.000039	in/in/°F	ISO 11359-1, -2
Burning Behav. at 1.6mm nom. thickn. (0.06 in, UL)	HB		ISO 1210
Burning Behav. at thickness h (0.126 in, UL)	HB		ISO 1210
Oxygen index	26	%	ISO 4589-1, -2
Electrical properties 23°C/50%r.h.	Nominal Value	Unit	Test Method
Relative permittivity (100 Hz)	3.00		IEC 60250
Relative permittivity (1 MHz)	3.00		IEC 60250
Dissipation factor (100 Hz)	0.0010		IEC 60250
Dissipation factor (1 MHz)	0.0020		IEC 60250
Volume resistivity	> 3.9E+14	ohm-in	IEC 60093
Electric strength	430	V/mil	IEC 60243-1
Other properties	Nominal Value	Unit	Test Method
Density	0.0434	lb/in³	ISO 1183
Test specimen production	Nominal Value	Unit	Test Method
Processing conditions acc. ISO	ISO 7391-2
Injection Molding, melt temperature	572	°F	ISO 294
Injection Molding, mold temperature	194	°F	ISO 10724
Injection Molding, injection velocity	8	in/sec	ISO 294

Processing Information
Injection	Nominal Value	Unit
Drying Temperature	250	°F
Drying Time	3.0 to 4.0	hr
Suggested Max Moisture	0.020	%
Rear Temperature	470 to 530	°F
Middle Temperature	500 to 540	°F
Front Temperature	530 to 560	°F
Nozzle Temperature	530 to 560	°F
Processing (Melt) Temp	530 to 560	°F
Mold Temperature	160 to 220	°F
Screw Speed	40 to 70	rpm
Clamp Tonnage	2.0 to 5.0	tons/in²
Screw L/D Ratio	15.0:1.0
Screw Compression Ratio	1.5:1.0 to 3.0:1.0

Notes
¹	Typical properties: these are not to be construed as specifications.
²	Type I, 2 in/min
³	Type I, 0.05 in/min
⁴	Notch Depth: 10 mil
⁵	8000 in/min
⁶	Type S
⁷	Typical properties: these are not to be construed as specifications. Additional CAMPUS® data and disclaimer information may be found on CAMPUS® Data Sheet.

Makes no representation or warranty of any kind, express or implied, with respect to this product, as to merchantability, Fitness for particular purpose or otherwise. The data listed represents average values and are believed to be reliable, They are given for information; no guarantee of their accuracy is made, however, and the product is sold upon condition that purchasers shall make their own test to determinate the characteristics of the product and the suitability of the product for their particular process.