is nylon waterproof
Is nylon waterproof? On its own, not quite. Nylon is a tightly woven, water-resistant synthetic that sheds light rain and dries quickly, but untreated nylon will eventually let water seep through its weave. The real waterproofing comes from coatings and finishes, and knowing the difference helps you pick the right fabric for your next project.
Water Resistant vs. Waterproof Nylon
Uncoated nylon resists moisture thanks to its smooth fibers and dense weave. To become truly waterproof, it needs a barrier layer added during manufacturing.
Common Treatments to Look For
- PU coated nylon: a polyurethane layer on the back blocks water, ideal for bags, covers and rain gear.
- Silicone coatings: often found on lightweight nylon ripstop for tarps and ultralight shelters.
- DWR finish: a durable water repellent that makes water bead up, though it is not fully waterproof by itself.
Choosing the Right Nylon for Your Project
Think about exposure. Jackets and stuff sacks benefit from a coated nylon fabric, while windbreakers may only need a water resistant finish. Also consider weight, breathability and whether seams will need sealing tape for full protection.
Ready to start sewing? Browse our selection of nylon fabrics below and find the right weight and finish for your outdoor gear.