Five weeks ago we made two identical X-Pac stuff sacks. The only difference between them was how they were seam sealed.
In the end, neither bag kept the contents dry. Due to the results of that test, we saw that many people were curious at how to create a dry bag.
In this blog, we will show you how to create your very own dry bags.
You may be wondering what the difference between a stuff sack and dry bag is. Simply put, a stuff sack is an organizing bag with little to no defense against moisture. A dry bag is a completely air tight bag that will protect items that MUST remain dry.
These are the materials we to make the dry bags :
This method should work with most PU coated fabrics. If you want to know about a fabric’s relationship to Seam Grip specifically, reach out to our customer support! If you’re looking at using Dyneema® Composite Fabric or other tapeable materials, this method will work for that as well.
It is said that 3-4 rolls before clipping your drybag will ensure waterproofness. With that in mind, you will need to know what size of a dry bag you will need, then scale up to account for the roll closure.
Here’s an easy way to discover the capacity of a bag in liters.
(Length x Width x Height) = 1,000,000
Your length, width, and height should be in millimeters for an accurate conversion.
I.e ( 200mm x 180mm x 160mm = 5,760,000 ) / 1,000,000 = 5.76 liters
We recommend that you always cut a larger piece to give yourself a little buffer. Other things to remember when you are cutting your blank are the seam allowance, french hem, roll hem, roll top, boxed corners (if applicable), and anything else that may require additional fabric.
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