What is the holding power or tensile strength like? Looking to patch a load bearing torn seam on my heavy spa cover where it folds in half

Doubt this is what you are looking for

Will this seal a small hole on an alluminum boat

It would but I don’t know that it would be a good long term solution. I have used a product called Mr Sticky on an aluminum boat and it worked really well

Would this work in a shower tub seam

Might not look as smooth as caulk but it'll certainly do the job.

Can this be applied under water?

I don't know about applying under water, but it is good to keep water out. I had water coming into my basement from a crack in my patio. Put flex tape over the cement crack outside and haven't had any more water seep into the basement and hasn't for several years. Not that pretty, but it works!

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Flex Tape 強力ゴム引き防水テープ、ホワイト、4インチ x 25フィート、1パック

Product ID: 744704543

Details

Brand
Flex Tape
Color
white
Material
Rubber
Number of Items
1
Recommended Uses For Product
Plumbing air

🌊Works underwater & on wet surfaces

💪400% more tape per roll

☀️UV resistant & extreme temp proof

HK$1218

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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Description

🛠️ Seal it like a pro, anywhere, anytime!

BUILT TO LAST - UV resistant and VOC free for durable, eco-conscious protection against harsh elements.
ALL WEATHER WARRIOR - Seals leaks underwater or on wet surfaces—rain or shine, it’s got you covered.
FAST RELIABLE FIX - Ideal for home, RV, roof, or pool repairs—patch leaks instantly and confidently.
UNMATCHED COVERAGE POWER - Get 4x more sealing tape per roll—max out your repairs without running out.
THICK FLEXIBLE RUBBERIZED SHIELD - 39 mils of original super-strong rubberized tape flexes with surfaces for a perfect seal.

Flex Tape MAX is a 4" x 25' roll of original thick, flexible rubberized waterproof tape designed to seal and patch leaks on wet or dry surfaces, even underwater. With 400% more tape per roll, UV resistance, and the ability to withstand extreme temperatures, it’s the ultimate fast-response solution for durable indoor and outdoor repairs on homes, RVs, roofs, and pools.

Specifications

Manufacturer	Flex Tape
Part number	SWIFT RESPONSE - 101913
Item Weight	454 g
Product Dimensions	11.94 x 11.81 x 10.54 cm; 453.59 g
Size	4' x 25' (Pack of 1)
Color	white
Material	Rubber
Item Thickness	39 Mils
Number Of Pieces	1
Measurement System	Imperial
Special Features	Strong
Included Components	Fast Response - 101913
Batteries Included	No
Batteries Required?	No
Item Dimensions LxWxH	11.9 x 11.8 x 10.5 cm

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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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TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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HK$1218

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered 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 Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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