Can I drive car over this dam?

When it's dry and flat, maybe; but not a good idea when it has swelled with water....it would burst and release the gel.

What is a super absorbent material to place on window sills till windows are repaired?

Our product absorbs water & swells to divert flood water so should work.

These are only for one rainy season? What do you do with them afterwards?

when they are dry, they shrink down to their original size, you can fold them up and store them for another rainy day

Can these be used inside a door to keep water from coming in?

I suppose so, but I believe they are intended for outdoor use. My back door connects to my laundry room. Rainwater tends to pool just outside during heavy rainfall. It doesn’t take long for it to start spilling inside. I placed one of these OUTSIDE the door right up against the threshold. The rain activates the swelling as it absorbs. It raises up about 3-4 inches and no water gets past it. Since I’ve gotten this (like a week ago), we have had 3 major rain events, and my laundry room floor is completely dry. The best part is it can stay right where it is through the duration of hurricane season and keep on working. I did purchase a different item for inside the door but didn’t need it—plus it was in the way of opening that door when I needed to take the trash out. It’s supposed to decompose after 6 months or so—I wouldn’t want it doing that in my house.

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Quick Dam QD65-4 Water Activated 5ft Flood Barrier, 4 Pack, Black

Quick Dam QD65-4 Water Activated 5ft Flood Barrier, 4 Pack, Black

Product ID: 163786270

Details

Brand
Quick Dam
Capacity
4 gallons
Color
Black
Material
Plastic
Product Dimensions
60"L x 6"W x

💧Absorbs 4 gallons water

⏱️Expands in 10 minutes

♻️Reusable & eco-friendly

¥18076

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

💦 Flood defense that’s fast, smart, and always ready!

LONG SHELF LIFE - Ready for emergencies with 5+ years of storage stability
ECO PET FRIENDLY - Non-toxic, reusable, and safe for your home environment
COMPACT LIGHTWEIGHT - Easy to store and deploy—no sand, no mess, no hassle
RAPID WATER ACTIVATION - Self-inflates and gels within 10 minutes for instant flood defense
VERSATILE FLOOD PROTECTION - Ideal for basements, garages, doorways, and more—guard against leaks, spills, and storm surges

Quick Dam QD65-4 is a 4-pack of 5-foot water-activated flood barriers that absorb up to 4 gallons each, expanding to 3.5 inches high within 10 minutes. These reusable, eco-friendly barriers offer a sandless, lightweight alternative to traditional sandbags, with a shelf life exceeding 5 years. Perfect for rapid deployment indoors or outdoors to protect against flooding, leaks, and water damage.

Specifications

ASIN	B07T6NMZFK
Best Sellers Rank	#66,497 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #113 in Safe Accessories
Brand Name	Quick Dam
Capacity	4 gallons
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (713)
Global Trade Identification Number	00810959021366
Included Components	(4) Quick Dam 5-ft Flood Barriers
Item Dimensions L x W x H	60"L x 6"W x 3.5"H
Item Type Name	Quick Dam 5ft Flood Barrier
Item Weight	2.99 Pounds
Manufacturer	Quick Dam
Manufacturer Part Number	QD65-4
Manufacturer Warranty Description	Free from manufacturing defects.
Material Type	Plastic
Model Number	QD65-4
Shape	Rectangular
UPC	810959021366
Unit Count	4.0 Count

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥18076

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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