Can Duct Tape Really Beat Sandbags in a Flood? New Research Says Yes!
Most people think of duct tape as the go-to solution for fixing just about anything. A loose cable, a broken handle, a torn tarp or that one thing in the workshop that nobody wants to replace. But could a simple roll of duct tape actually help protect your home from flooding?
According to recent research from the University of Hull in the UK, the answer might surprise you. Scientists have found that certain types of tape can be surprisingly effective at reducing the amount of water entering a home through doorways during low-level flooding. In fact, the results suggest that duct tape could outperform traditional sandbags in some controlled flood-protection tests.
It's another reminder that when it comes to practical maintenance and emergency preparedness, having the right tape on hand can be more useful than you might think.
What Did the University of Hull Research Discover?
A recent BBC News report titled "University of Hull flood tests find tape better than sandbags" highlighted research conducted at the University of Hull's property flood resilience laboratory.
Researchers tested different commercially available tapes, traditional sandbags and synthetic sandless sandbags to determine how effectively they could reduce water entering through household doors.
The results were quite interesting. Flexible synthetic rubber tape reduced water leakage by approximately 99%, while duct tape reduced leakage by 97–98%. Traditional sandbags, on the other hand, reduced leakage by approximately 70% compared with an unprotected door.
That is a pretty impressive result for something many people already have sitting in a toolbox or utility drawer!
The researchers tested different types of doors and examined how effectively tape could seal the gaps around door edges. They also found that outward-opening doors performed better when taped than inward-opening doors.
However, there is an important detail worth remembering. The tests were conducted under controlled laboratory conditions with water depths of up to approximately two feet (600 mm). The researchers emphasized that tape should not be considered a replacement for permanent, professionally installed flood-protection measures. Floodwater can enter through walls, floors, windows and other openings that duct tape cannot protect.
Nevertheless, the research highlights an interesting potential use for a readily available product that many homeowners and maintenance professionals already know and trust.
Why Is Duct Tape So Useful?
Duct tape has earned its reputation for a reason. Its combination of a flexible cloth backing, polyethylene coating and strong adhesive makes it suitable for a wide range of temporary repairs, maintenance and general-purpose applications.
Unlike ordinary adhesive tape, duct tape is designed to conform to irregular surfaces, resist tearing and provide a durable bond. Many varieties are also hand-tearable, making them convenient to use without scissors or cutting tools.
For contractors, maintenance departments, facility managers and homeowners, duct tape is one of those products that is always worth keeping nearby. It can be used for bundling, patching, reinforcing, securing protective coverings, temporary repairs, marking and sealing applications.
Of course, not all duct tapes are created equal. Different grades offer different levels of thickness, adhesion, durability and resistance to moisture and abrasion. Choosing the right tape for the job makes all the difference.
That is where 3M duct tapes come in.
Which 3M Duct Tape Should You Choose?
At National Hardware Sales Ltd., we carry a selection of genuine 3M duct tapes designed for maintenance, construction, industrial and general-purpose applications. Whether you need a heavy-duty silver duct tape for demanding work, a coloured tape for identification or a performance-grade tape for more specialized applications, there are several options worth considering.
3M 3939 Heavy Duty Silver Duct Tape – A Great All-Around Choice
If you are looking for a dependable, heavy-duty duct tape, the 3M 3939 Silver Duct Tape is an excellent option.
With a 9.0 mil thickness and a polyethylene-coated cloth backing, 3M 3939 is designed for demanding maintenance, repair and construction applications. Its rubber adhesive provides immediate adhesion, while the strong, water-resistant backing helps the tape withstand wear and light abrasion.
One particularly useful feature is its clean-removal performance. When applied indoors, 3M 3939 can be removed with little or no adhesive residue for up to three months under suitable conditions. That makes it useful for applications where you need a strong bond without necessarily leaving a permanent adhesive mess behind.
Whether you are patching, bundling, reinforcing, securing conduit ends, taping insulation, hanging polyethylene drapes or making temporary repairs, 3M 3939 is a versatile product to keep in your maintenance supplies.
At 48 mm wide and 54.8 metres long, it is a practical size for everyday professional use.
3M 3900 General Purpose Duct Tape – Versatile and Available in Multiple Colours
Sometimes you need a dependable duct tape for everyday maintenance without necessarily needing a heavy-duty construction-grade product. That's where the 3M 3900 Duct Tape family comes in.
The 3M 3900 series is a 7.7 mil polyethylene-coated cloth tape designed for general maintenance, wrapping, bundling, sealing, reinforcing and temporary repairs. Its hand-tearable construction makes it convenient to use, while its conformability allows it to adhere to many surfaces, including irregular ones.
One of the advantages of the 3M 3900 series is its availability in different colours. Silver, black, blue, red, yellow and olive drab options make it particularly useful for colour coding, identification, marking and organizing equipment or materials.
The silver version is a dependable general-purpose choice, while the coloured options are especially useful in warehouses, workshops, production facilities and maintenance departments where visual identification matters.
For businesses that regularly use duct tape, having a few different colours available can make organizing and identifying materials much easier.
You can explore the 3M 3900 range at National Hardware Sales.
3M 8979 Performance Plus Duct Tape – For More Demanding Applications
For users who need something beyond a standard general-purpose duct tape, the 3M 8979 Performance Plus Duct Tape is another product worth considering.
Designed for demanding professional applications, 3M 8979 combines a durable backing with a strong adhesive to provide dependable performance in maintenance, repair and industrial environments.
It is particularly useful for applications involving surface protection, bundling, sealing, temporary repairs and other jobs where durability and reliable adhesion are important.
National Hardware Sales carries 3M 8979 Performance Plus Duct Tape in slate blue, including different widths such as 48 mm, 72 mm and 96 mm. The wider formats can be useful when you need more coverage or are working with larger surfaces.
For contractors, industrial maintenance teams and facility managers who use duct tape regularly, 3M 8979 is a product worth having in the supply cabinet.
You can find the available sizes through our 3M Duct Tape Collection.
Why Buy 3M Duct Tape from National Hardware Sales?
When selecting duct tape for professional or industrial applications, choosing a reputable manufacturer matters. 3M has a long history of developing adhesive tapes for construction, manufacturing, maintenance and other demanding environments.
At National Hardware Sales Ltd., we offer a selection of genuine 3M tapes for Canadian businesses, contractors, maintenance professionals and individual customers.
Whether you are looking for 3M 3939 Heavy Duty Silver Duct Tape, 3M 3900 General Purpose Duct Tape or 3M 8979 Performance Plus Duct Tape, we can help you find a product suited to your application.
We serve customers across Canada and offer commercial and contractor pricing for qualifying orders. If you are purchasing duct tape in larger quantities for a maintenance department, construction project or industrial facility, contact our team to discuss your requirements.
Final Thoughts: A Roll of Duct Tape Is Always Good to Have Around
The University of Hull research is a fascinating reminder that everyday products can sometimes have surprisingly useful applications. While duct tape should never replace proper flood-protection systems, the laboratory findings demonstrate its potential to help reduce water leakage through doors during certain low-level flooding conditions.
Beyond that, duct tape remains one of the most versatile products you can keep in a workshop, warehouse, vehicle or maintenance department.
From temporary repairs and bundling to construction, insulation work and general maintenance, having the right 3M duct tape available can save time and make everyday jobs easier.
And if you're going to keep a roll around, why not make it a good one?
Explore the 3M duct tape range at National Hardware Sales Ltd. and find the right tape for your next project.
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