Lightning Strike Protection

How to Choose the Right MicroGrid®

Below are charts of commonly processed materials for lightning strike protection in composite aircraft structures. Other alloys, metals, thicknesses and pattern sizes are available. Please consult with our sales engineers for specific material characteristics in regard to your particular aircraft structure.

				Aluminum
Dexmet Product Code	2AL6-077	4AL8-080	4AL8-080F	5AL10-080
Weight – Lbs/SF	0.008	0.016	0.016	0.028
Base Metal Thickness	0.002 inch	0.004 inch	0.004 inch	0.005 inch
LWD	0.077 inch	0.080 inch	0.080 inch	0.080 inch
Overall Thickness	0.004 inch	0.006 inch	0.004 inch	0.006 inch
Open Area	69%	68%	68%	63%

 

				Copper
Dexmet Product Code	2CU4-100A	2CU6-100A	3CU7-125A	3CU7-100A
Weight – Lbs/SF	0.015	0.022	0.029	0.040
Base Metal Thickness	0.002 inch	0.002 inch	0.002 inch	0.003 inch
LWD	0.100 inch	0.100 inch	0.125 inch	0.100 inch
Overall Thickness	0.004 inch	0.005 inch	0.005 inch	0.005 inch
Open Area	85%	78%	77%	70%

Explanation of Product Code:

Example: 3 Ni 5-077

First number represents nominal original thickness
3 = .003" (.076 mm)

Letters are chemical symbol for material
Ni = Nickel

Number immediately following letters represents strand width
5 = .005" (.127 mm)

Last number indicates the long way of the diamond
077 = .077" (1.96 mm)