“how much weight would be added by coating the floor with silicone”
It seems our own TLBer Jim Wood did this test
http://jwbasecamp.com/Articles/Silnylon1/index.htmlAnd quoting
“WEIGHT
Aside from the small cost of materials and the time required for application, about the only downside to the treatment is that it adds a little weight to the tent. If applied to both the upper and lower surfaces (recommended), the floor will probably become 2 or 3 ounces heavier as the silnylon fabric gains about ¾ ounce per square yard. Accordingly, the new fabric weight will be approximately 2 ounces per square yard, rather than the original 1.3 ounces. Even at this weight, however, the treated floor will still be lighter than most 70D polyurethane-coated fabrics by 25% or more. In addition, some users will probably decide that their silnylon floors are now sufficiently "trail hardened" that it's no longer necessary to carry separate ground cloths to protect them, thereby saving the weight of the coating and then some.”
Me, I would not do this since my multi-use ground cloth is only 1.5oz and is much easier to replace than coating a tent floor. As for slipping around, the multi-use 1/8” GG pad handles that.
-Barry
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