Ray,
I've been doing a lot of research on covering with silk lately and ran across this:
Material oz./sq. yard.
Airspan 0.67
Litespan 0.85
Light Colored Japanese Tissue;3 thin coats of nitrate dope 0.87
Colored Micafilm 1.03
Light White Silk;5 coats thin nitrate dope 1.13
Fibafilm 1.23
Colored Skysail;4 coats 50/50 butyrate dope 1.62
Black Silkspan;5 coats thin nitrate dope 1.66
Colored Transparent Monokote 1.69
White Japanese Tissue;4 coats 50/50 butyrate dope 2.18
Colored Nylon;6 coats 50/50 butyrate dope 2.19
Opaques Colored Monokote 2.22
Coverite 21st Century Film 2.31
White Super Coverite 2.40
Colored Super Coverite 2.70
Note: These figure should be used for indication only.
Copied from
www.glue-it.comI knew silk and dope was one of the lighter finishes but didn't realize it finished this light. I weighed 1 square yard of lightweight silk at the post office and it was .3 oz.