A question that comes up frequently on backpacking forums is how to deal with the three primary problems associated with silnylon tent floors and ground cloths: slipperiness, low water resistance and poor durability.
Just published, a new article discusses a single do-it-yourself treatment that solves all three problems at once, transforming silnylon from a generally poor choice for tent floors into an excellent replacement for the heavier polyurethane coated fabrics that have traditionally been used for this purpose. It even works on other silnylon-based products (like stuff sacks) to improve strength and water resistance.
You can find it here: http://jwbasecamp.com.
Jim Wood
