LLPT Butyl Putty Tape Black 3/4 inch x 33 ft Tight Seal for Leak Proof RV Repair (BST343)
LLPT Butyl Putty Tape Black 3/4 inch x 33 ft Tight Seal for Leak Proof RV Repair (BST343)
Hero image 0 of LLPT Butyl Putty Tape Black 3/4 inch x 33 ft Tight Seal for Leak Proof RV Repair (BST343), 0 of 6

LLPT Butyl Putty Tape Black 3/4 inch x 33 ft Tight Seal for Leak Proof RV Repair (BST343)

Key item features

  • Versatile Applications: Widely used for waterproof reinforcement in windows, doors, RVs, windshields, pipes, and joint sealing, suitable for both indoor and outdoor use on various surfaces like EPDM roofs and galvanized metal.
  • Adaptable Surfaces: Effectively seals against wind, water, dust, and moisture on glass, fiberglass, wood, coated/uncoated metals, plastic, and rubber, even on uneven or jagged surfaces.
  • Premium Composition: Made from synthetic composited rubber, offering non-drying, non-hardening properties, easy installation, quick molding, shock absorption, and high viscosity with lasting flexibility.
  • Effortless Application: Provides instant adhesion and easy molding; best applied around 10°C, with a recommendation to chill the tape in a refrigerator for easier handling.
  • Reliable Sealing: A preformed, watertight, extruded putty that permanently adheres to clean and dry metal, glass, plastic, and wood surfaces without shrinking, cracking, or drying out.
Generated by AI
Current price is $13.50
Price when purchased online
Selected option out of stock
More options available

How do you want your item?

How do you want your item?
Out of stock

About this item

Product details

Specifications

Warranty

Customer ratings & reviews

4.7 out of 5 stars
stars30 ratings18 reviews
How item rating is calculated
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 18 reviews

Feb 11, 2026
hardwired56
Item details
Color: Black (BST233)
Sold byLLPT Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

Well made and strong

Well packaged with near perfect rolls. Adheres to ice cold dry cement blocks vey well as well as poly sheeting. Width works very well for several projects. Whatever you use it for, I strongly recommend using a roller with moderate pressure or even a broad faced mallet with firm taps to secure the tape to the substrate. Do so before peeling off the top layer of tape for superior adhesive strength. The cleaner the substrate, the stronger the bond. Use sharp scissors to prevent stretching the tape when cutting. Hope this helps.

Helpful?7DLCNA9IEXA53945479423
May 31, 2026
Jerry
Top Reviewer
Item details
Color: Black
Sold byLLPT Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

I recommend

The purchase was a good buy because it is a very large roll and reasonably priced. The butyl tape is also effective and forms easily to what you are applying it on. It is soft and flexible to conform your preferred shape. I recently used it on my vehicle fuse box for an effective seal on a minor modification I did.

Helpful?7DLCNA9IEXA53945479423
May 17, 2026
Philip
Top Reviewer
Item details
Color: White (WST232)
Sold byLLPT Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

This LLPT Butyl putty tape is excellent and reasonably priced. We did all our Window Depot windows and the one inch size was perfect and the quality of the putty is excellent. Definitely wouldn't recommend this to anybody installing Windows.

Helpful?7DLCNA9IEXA53945479423