Reproofing Waterproof Clothing: A Practical Guide

Can You Waterproof a Jacket?

Yes, you can restore the water repellency of a waterproof or water-resistant jacket by reproofing it with a durable water repellent (DWR) treatment. Most waterproof jackets rely on a DWR finish that causes water to bead and roll off the surface. Over time, dirt, wear, and washing reduce this finish, allowing the outer fabric to absorb water, which can make the jacket feel damp and reduce breathability. Reproofing replenishes the DWR, restoring water beading and improving comfort. It works best on jackets with waterproof membranes (like Gore-Tex, eVent, or proprietary membranes), but also benefits water-resistant softshells and windbreakers. Always check the care labels before reproofing.

How to Waterproof a Water-Resistant Jacket

Water-resistant jackets without a membrane can be reproofed similarly, but the treatment only adds surface repellency; it will not make them fully waterproof. Choose a product appropriate for the fabric: most DWR treatments work on nylon, polyester, and blends. For light water-resistant jackets, spray-on waterproofing is often sufficient and simpler. Start by cleaning the jacket according to the care label, then apply the reproofer while the jacket is damp, following product instructions. Heat activation (tumble drying or ironing on low, if allowed) helps bond the DWR to the fabric.

Reproofing Waterproof Jackets After Washing

Washing is essential before reproofing because dirt and residues block DWR bonding. Use a technical cleaner or mild liquid detergent without fabric softeners, bleach, or enzymes. Rinse thoroughly to remove all detergent, as residues can interfere with the reproofer. After washing, the jacket's DWR is often depleted, so reproofing after washing is the ideal sequence. Follow these steps:

1. Clean the jacket using a technical wash or mild detergent on a gentle cycle, extra rinse.
2. While the jacket is still damp, apply the reproofer (wash-in or spray-on) according to the product instructions.
3. Dry the jacket: tumble dry on low heat if the care label allows, or air dry and then use a cool iron (with a cloth) to activate DWR.

If using a wash-in reproofer, add it to the detergent dispenser during a second rinse cycle, then proceed to drying.

Reproofing Waterproof Clothing: Choosing the Right Product

DWR treatments come in two main types: wash-in and spray-on. Both restore water beading, but the choice depends on the garment's construction and your needs.

For most waterproof/breathable jackets, a spray-on is preferred to avoid compromising the membrane's breathability. However, wash-in is simpler for a quick overall refresh. Check the product's compatibility with your jacket's membrane and fabric.

Reproofing Waterproof Coats: Step-by-Step

Reproofing a waterproof coat follows similar principles. Here's a general approach:

1. Close all zippers and Velcro, and empty pockets.
2. Wash the coat with a technical cleaner on a gentle cycle, extra rinse.
3. If using wash-in reproofer: add the recommended amount to the fabric softener dispenser during the rinse cycle.
4. If using spray-on reproofer: while the coat is still damp, hang it and spray evenly from about 15 cm (6 inches) away, focusing on high-wear areas like shoulders and cuffs. Wipe off excess with a damp cloth.
5. Dry according to care label: tumble dry low or air dry, then apply gentle heat (iron or dryer) to activate the DWR.

Always test a small inconspicuous area first if unsure.

Reproofing Waterproof Jackets: Tips for Different Budgets and Schedules

Reproofing need not be expensive or time-consuming. Here are practical ways to adapt:

• Budget-friendly: Use a wash-in product from a reputable outdoor brand; many are priced under $15 and can treat multiple garments. For spot repairs, a small spray bottle of DWR is cost-effective.
• Time-saving: Combine washing and reproofing in one load if using a wash-in; no extra cycle needed beyond the normal wash (follow product label).
• Precise application: If you need to maintain breathability or treat only certain areas, spray-on is quicker for touch-ups without washing the whole garment.
• Group needs: When reproofing for a family or group, wash and treat similar items together using a wash-in, but avoid overloading the machine.

Reproofing frequency depends on use; jackets worn daily may need reproofing every 2-3 months, while occasional use may last a season. Observe water beading: when water no longer beads and the fabric wets out, it's time to reproof.

Practical Considerations for Outdoor Activities

Maintaining DWR is essential for comfort during park days, picnics, and everyday routines. A reproofed jacket keeps you drier in light rain and reduces the chilling effect of a wet outer layer. To make reproofing part of your routine simple:

• Set a reminder to check water beading after a few washes.
• Keep a bottle of spray-on DWR handy for quick touch-ups on high-wear areas like cuffs and shoulders.
• For family outings, reproof all shells at the start of the season to ensure everyone stays comfortable.

Always follow manufacturer instructions for both the garment and the DWR product, and ventilate the area when using spray-on treatments.