EternaBond RSW-4-40, Tape, White Patch Industrial Sealant, 4"
EternaBond RSW-4-40, Tape, White Patch Industrial Sealant, 4"
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EternaBond

EternaBond RSW-4-40, Tape, White Patch Industrial Sealant, 4"

4.5 stars out of 189 reviews
(4.5)|
189 ratings
EternaBond RSW-4-40, Tape, White Patch Industrial Sealant, 4"EternaBond RSW 4 40 Tape White Patch Industrial Sealant 44 WHITE Eternabond Roof Leak Repair Tape Patch Seal 10 ft4 WHITE Eternabond Roof Leak Repair Tape Patch Seal 50 ft4 WHITE Eternabond Roof Leak Repair Tape Patch Seal 25 ft4 WHITE Eternabond Roof Leak Repair Tape Patch Seal 5 ft
Size:4 in x 40 ft

Key item features

  • Industrial Sealant: EternaBond RSW-4-40 is a white patch industrial sealant tape, 4 inches wide, designed for leak repair and corrosion protection in challenging environments.
  • Durable Backing: Features a specialized, UV-stable backing that maintains integrity even after 16 years of exposure to full sunlight.
  • Integrated Adhesive: Patented Eternabond adhesive includes an integrated primer, allowing effective bonding to most clean surfaces without additional primer.
  • Versatile Application: Ideal for re-seaming various roof types and suitable for tank repairs, creating a permanent watertight seal.
  • Material Compatibility: Compatible with diverse materials including rubber, fiberglass, aluminum, modified bitumen, shingles, PVC, steel, and hot-tar.
  • Flexible Performance: Offers an elongation factor greater than 700%, enabling it to flex, expand, and contract under various conditions, including on liners.
  • Temperature Resilience: Can be installed in temperatures as low as -20 degrees F with EternaPrime and has a sag rating exceeding 250 degrees F.
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Current price is $53.98
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  • Free shipping
  • Free 30-day returns

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Columbus, 43215
Arrives by Tue, Apr 21
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Sold and shipped by Automotive Authority
4.623684210526315 stars out of 5, based on 380 seller reviews(4.6)
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Customer ratings & reviews

4.5 out of 5 stars
stars189 ratings94 reviews
How item rating is calculated
  1. 5 stars77% (145)
  2. 4 stars12% (23)
  3. 3 stars4% (7)
  4. 2 stars2% (3)
  5. 1 star6% (11)

Reviews summary

Pros

  • : Used to seal leaks and cracks on rv surfaces.
  • : Provides a great product at a lower cost.
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Showing 1-3 of 94 reviews

Dec 3, 2025
David
Item details
Size: 4 in x 50 ft
Sold and shipped byAutomotive Authority
5 out of 5 stars review

Verified Purchase

Tenacious Stuff

It is tenacious stuff. It sticks like crazy. It is easy to manage with the backing supplied but it is necessary to align it properly before applying it because it sticks like crazy. However, it is capable of being creased or folded to restore alignment if alignment is not perfect. But it will stick to itself like any other tape and cannot be easily removed after application without causing some damage.

Helpful?12216GGZMGRH417476849
Oct 29, 2025
JoeKalamazoo
Item details
Size: 4 in x 10 ft
Sold and shipped byAutomotive Authority
5 out of 5 stars review

Verified Purchase

The answer to leaks on RV

My brother tried flex seal and multiple other products, leaks continued. I cleaned up his "mess" (removed flex seal, etc...) applied tape as directed, problem solved. Amazing product

Helpful?12216GGZMGRH417476849
Jun 26, 2025
Margaret
Item details
Size: 4 in x 10 ft
Sold and shipped byDTL DIRECT
5 out of 5 stars review

Verified Purchase

When you install this on a clean surface on your RV roof it is permanent. It is great around the skylights or along the edges. You'd better get it right the first time because there's no lifting it back up. I've been using this EternaBond tape for years and I love it.

Helpful?12216GGZMGRH417476849