How does this compare to their "wash-in" version? I assume it would be more economical since it's not being diluted by a bunch of water?

Actually just the opposite... the Spray-On variety is simply a watered down version of the Wash-in, which means you are paying for a diluted product. I have had great results making my own Spray-in solution by using 1/3 Wash-in product and 2/3 water in my own spray bottle.

Can you spray it on a dry garment?

Spraying this on a dry (oops!) 100% polyester coat resulted in terrible spotting stains. Any ideas how to remove the stains? I've tried baking soda, vinegar, stain remover, etc. and the coat has been washed over three times. If anything, the spots look worse. I've ruined a brand new coat by forgetting to apply it to WET fabrics!

if you run out of the small spray bottle and wanted to refill, can the wash in work or should just buy a new bottle and spayer?

In a pinch, the wash in could work to refill the spray bottle but the sprayis a different formulation designed to work better as a spray.

Can this work on a polyester shower curtain ? If so, would it have to be applied often?

Used it on my London Fog raincoat (polyester). Not a petro-solvent vehicle; water soluble. So, no problem. Has a chemical smell for a few days as it dries and sets. Goes away in about 4 days. No discoloration.

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Nikwax TX.Direct Spray-On Waterproofing, 500ml, High Performance Waterproofing Renewal Treatment Restores DWR Water Repellency in Jackets, Outerwear, Rain, Ski and Snow Gear

Nikwax TX.Direct Spray-On Waterproofing, 500ml, High Performance Waterproofing Renewal Treatment Restores DWR Water Repellency in Jackets, Outerwear, Rain, Ski and Snow Gear

Product ID: 1407538

Details

Brand
Nikwax
Item Form
spray
Item Weight
16 ounces
Number of Items
1
Specific Uses For Product
Waterproofing

💧500ml high-performance spray

♻️PFAS-free, eco-conscious formula

🌬️Revives breathability & warmth

€ 62.39

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💦 Stay dry, breathe easy, and lead the pack in waterproof tech!

ECO FRIENDLY POWER - PFAS-free, water-based, and aerosol-free for guilt-free performance
SPRAY ON SIMPLICITY - Effortlessly renew your gear’s water repellency in seconds
BREATHE EASY STAY DRY - Restores breathability so you stay warm without the sweat
PROLONG YOUR ADVENTURE - Keeps your rain, ski, and outdoor jackets performing like new
UNIVERSAL COMPATIBILITY - Perfect for GORE-TEX, Patagonia, North Face, Arc'teryx & more

Nikwax TX.Direct Spray-On is a 500ml high-performance waterproofing treatment designed to restore durable water repellency (DWR) and breathability in technical outerwear. Compatible with top outdoor brands and fabrics like GORE-TEX, it’s a PFAS-free, water-based, aerosol-free spray that keeps you warmer and drier on every adventure.

Specifications

ASIN	B0019GLADA
ASIN	B0019GLADA
Best Sellers Rank	#1,409 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #3 in Camping Sleeping Bag Accessories
Brand Name	Nikwax
Customer Reviews	4.4 4.4 out of 5 stars (7,137)
Date First Available	November 29, 2006
Department	Unisex-Adult
Global Trade Identification Number	00703861000249
Item Form	spray
Item Type Name	Apparel Aftercare
Item Weight	16 ounces
Item model number	572
Manufacturer	Nikwax
Manufacturer	Nikwax
Model Number	572
Number of Items	1
Part Number	572
Product Dimensions	2.25 x 2.25 x 7 inches; 1 pounds
Specific Uses For Product	Waterproofing
UPC	703861000249 703861001352 703861000232
Unit Count	16.9 Fluid Ounces

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