Akron Porcelain & Plastics Company utilizes its years of experience in the custom-molding of dry-process industrial ceramics by helping its customers achieve their product goals. In business since 1890, the Company has custom-molded parts for wire-wound resistors, electrical distribution products, electrical connectors, insulators and bushings, foundry products, and an array of specialty parts. Our engineers have created innovative mold designs to produce complex shapes on a mass production basis. Our production process economically produces your parts to your requirements. We are the leading glazed-part supplier in the industry with applications in several OEM industrial segments.

Dry Process Properties

		Porcelain
		Average   Physical   Properties
		UNITS
Absorption		%	1.0
Apparent Specific Gravity			2.4
Tensile Strength		lbs. / sq. in.	2500
Compressive Strength		lbs. / sq. in.	40000
Flexural Strength, (MOR)		lbs. / sq. in.	4000 - 4200
Resistance to Impact		Inch-lbs	2.40
		Thermal   Properties
Coefficient of Thermal Expansion		1E-6in/in/°C
		25 - 100°C	4.13
		25 - 400°C	4.88
		25 - 700°C	5.25
		Electrical   Properties
Dielectric Strength		volts / mil
		volts/mil @ 0.25"	49.20
		volts/mil @ 0.40"	39.60
		volts/mil @ 0.75"	27.40
		volts/mil @ 1.00"	25.30
Power Factor		60 Hz (50Hz)	0.475
		1000 Hz	0.249
		106 Hz	0.009
Dielectric Constant		60 Hz (50Hz)	12.80
		1000 Hz	7.14
		106 Hz	4.97
Loss Factor		60 Hz (50Hz)	6.91
		1000 Hz	1.84
		106 Hz	0.05
Volume Resistivity		ohm-cm	0.176 x 1012
Surface Resistivity		ohms	4.4 x 1012
The information and data presented on this sheet is based on testing and research and believed to be accurate.  Due to the
variant nature of mineral deposits as they are mined, the user is responsible for determining the suitability for their process
and their products/production needs.  AP&P does not warrant the results and disclaims all liability for any inaccuracies or
omissions, or for any direct, special or indirect or consequential damages or losses of whatever kind resulting
from any causes, or from products and information mentioned on this sheet.

Akron Porcelain & Plastics Company has the ability to produce high-volume mechanical assemblies as a value-added addition to its molding expertise.

Please let us take a look at your needs for industrial ceramics!