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Grids, Grid Storage Boxes, & Related Supplies SUPPORT FILM ON GRIDS Guide to Thickness Ranges
Standard Option A: 10nm Formvar and 1nm Carbon Standard Option B (SB): 10nm Formvar and 3-4nm Carbon Standard Option C (SC): 10nm Formvar and 20-30nm Carbon Ultra-Thin Option A (UA): 5-6nm Formvar and 1nm Carbon Ultra-Thin Option B (UB): 5-6nm Formvar and 3-4nm Carbon Ultra-Thin Option C (UC): 5-6nm Formvar and 20-30nm Carbon
Formvar/Carbon London Finder Grids Type Thickness
Thick Option A (TA): 15-20nm Formvar and 1nm Carbon Thick Option B (TB): 15-20nm Formvar and 3-4nm Carbon Thick Option C (TC): 15-20nm Formvar and 20-30nm Carbon Extra Thick Option A (EA): 25-50nm Formvar and 1nm Carbon Extra Thick Option B (EB): 25-50nm Formvar and 3-4nm Carbon Extra Thick Option C (EC): 25-50nm Formvar and 20-30nm Carbon