Flame retardancy of SUMIKASUPER LCP

SUMIKASUPER LCP has excellent flame retardancy without using any flame retardants. Furthermore, the gases generated during combustion are mainly carbon dioxide and water.

Limiting oxygen index

SUMIKASUPER LCP exhibits the highest limiting oxygen index (LOI) among all engineering plastics.

Figure 3-4-1 Comparison of limit oxygen index between engineering plastics and SUMIKASUPER LCP

Figure 3-4-1 Comparison of limit oxygen index between engineering plastics and SUMIKASUPER LCP

UL Standards

The UL 94 Flammability Standard, developed by UNDERWRITERS LABORATORIES INC., is a system for classifying plastic materials based on their resistance to flammability. The UL file number for SUMIKASUPER LCP is E249884. Please refer to the UL file for more information.

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 : Combustion Class
Relative Thermal Index (RTI)
Hot Wire Ignition (HWI)
High Ampere Arc Resistance (HAI)
Comparative Tracking Index (CTI)
PLC: HWI, HAI, CTI are displayed as Performance Level Categories (PLC) grades.