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Parylene D (CAS No. 30501-29-2)

Parylene is a diverse, efficient type of coating that has been developed to fit into and benefit our modern world in many different ways. 

Parylene C and D are very common in characteristics. However, Parylene D has a slightly higher temperature tolerance. This coating provides reliable assembly protection at 100°C (commonly known as the point at which water boils), in oxygen-dominated areas.


Product description

Basic information

Product Name: tetrachlorotricyclo[,7]hexadeca-1(12),4,6,10,13,15-hexaene, mixed isomers
Synonyms: tetrachlorotricyclo[,7]hexadeca-1(12),4,6,10,13,15-hexaene, mixed isomers;Tetrachlorotricyclo[,7]hexadeca-4,6,10,12,13,15-hexaene;Tetrachloro[2.2]paracyclophane;Parylene D
CAS: 30501-29-2
MF: C16H12Cl4
MW: 346.083


Chemical Properties

Melting point 130-140 ºC
Boiling point 180-190 °C
EPA Substance Registry System Tricyclo[,7]hexadeca-4,6,10,12,13,15-hexaene, tetrachloro- (30501-29-2)



Parylene D does well under pressure. Whether we’re talking physical strength or original electrical properties, parylene D holds itself up under higher temperatures.

• Greatest thermal stability compared to C and N
• Maintains physical strength and electrical properties at higher temperatures
• Lowest crevice penetration activity



• Aerospace components
• Electrical components


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