Flammability

SUMIKASUPER LCP has excellent flammability despite not containing flame retardants. The main out-gasses during combustion are carbon dioxide and water.

limiting Oxygen Index

The Limiting Oxygen Index (LOI) of SUMIKASUPER LCP is high, at the highest level among engineering plastics.

Figure 3-4-1 Comparison of the Limiting Oxygen Index of Engineering Plastics and SUMIKASUPER LCP

Figure 3-4-1 Comparison of the Limiting Oxygen Index of Engineering Plastics and SUMIKASUPER LCP

UL Standard

The UL 94 flammability standard, established by Underwriters Laboratories Inc. is a system for classifying plastic materials based on their flammability resistance. The UL file number for SUMIKASUPER LCP is registered as E249884. Please refer to the UL file for details.

Table 3-4-1 UL Registration Status of SUMIKASUPER LCP

Grade Thickness
(mm)		 Flame Class HWI HAI CTI RTI
Elec Imp Str
E5008 0.75 V-0 3 4 3 240 200 220
1.5 V-0 1 4 3 240 220 240
3.0 V-0 0 4 3 240 220 240
E5008L 0.75 V-0 3 4 4 240 200 220
1.5 V-0 1 4 4 240 220 240
3.0 V-0 0 4 4 240 220 240
E4008 0.15 V-0 4 - 3 220 200 220
0.30 V-0 3 0 3 240 200 240
0.75 V-0 3 0 3 240 220 240
1.5 V-0 2 0 3 240 220 240
3.0 V-0 1 0 3 240 220 240
E6008 0.15 V-0 4 3 3 220 200 220
0.27 V-0 4 0 3 240 200 240
0.54 V-0 4 0 3 240 220 240
0.75 V-0 4 0 3 240 220 240
1.5 V-0 2 0 3 240 220 240
3.0 V-0 1 0 3 240 220 240
E6007LHF-MR 0.50 V-0 4 1 3 220 210 210
0.75 V-0 4 1 3 220 210 210
1.5 V-0 4 1 3 220 220 220
3.0 V-0 0 0 3 220 220 220

Flame Class : Flammability
Relative Thermal Index (RTI) : Temperature index
Hot Wire Ignition (HWI) : Hot wire ignition resistance
High Ampere Arc Resistance (HAI) : High current arc ignition resistance
Comparative Tracking Index (CTI) : Comparative tracking index
PLC : HWI, HAI and CTI are indicated by a grade of Performance Level Categories (PLC).

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