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Butyl tape is an essential tool for weatherproofing marine and RV components. This sturdy material creates a long-lasting, weatherproof gasket to fill gaps between your RV's outer hull and the mounting points for vents, windows, and doors.
Features:
Specs:
Butyl tape is used primarily as a gasket for preventing moisture from leaking into your RV around cutouts in the hull for vents, doors, windows, and wiring outlets. Butyl tape is widely used by RV manufacturers because of its high performance and durability. It does not dry out and crack over time, and its strong adhesive quality means it sticks and stays in place on smooth surfaces.
Butyl tape is most often used in conjunction with sealants to create the highest level of weatherproofing to prevent leaks and ongoing damage. It's ideal for use in areas where fixtures need to be drilled, nailed or bolted into place. The rubbery material keeps those openings sealed and free from water damage. While this is great for those who do their own repairs and upgrades, butyl tape is also good to have on hand to make temporary repairs. The tacky material can plug up any problem areas and hold strong, so you don't have to cut your trip short.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
Turned out 1" wide when I thought it was 1/4" but is a quality butyl tape
Did what I needed it to do!
etrailer support has been great !
Service - 5
Value - 4
Shipping - 4
Quality - 5
Good quality butyl tape. etrailer.com has friendly service with good follow up on orders.
This "tape" is very easy to use and really seals.
I used this under the mounting brackets for my solar expansion on my RV. Great stuff! Highly recommend.
I received everything I ordered in a timley manner!
Used it under brackets to seal screw holes through the roof when installing a solar panel on our trailer. Does what it is supposed to do. Comes in a 20' roll where we only needed about 8" of it. Oh well, now we have plenty if there is further need for weatherproofing.
The butyl tape that was placed inside the maxxair air fan box was in poor condition. Looked as if it had been crushed and no longer in a round shape as advertised pictures displayed. Still usable but should have been packaged more appropriately
Jenny N.
6/6/2024
I will certainly let our shipping department know how the butyl tape arrived. I know that it is still usable however we will be in contact with you to see if you want to have it replaced. Thank you for letting us know.
Overall it was good. The only issue was the shipping. I paid for 3 to 5 day shipping and according to your tracker it wasn't Evan pulled from the shelves till after 5 days of the order and I received the order 5 days after that. One on the items in the shipment was stuck to the box and needed a little protection. (pic included)
Worked very well to easily and securely seal the light fixture.
Ron
6/18/2023
Seal is watertight and secure after a lot of miles of travel.
Used this tape on some replacement skylights. It’s a little tricky to get on as it is not rigid. I found cutting to length prior to applying worked best for me. I found that in the end it was very forgiving.
The butyltape was not packaged very well The tape stuck to the paper stuffed in the box Just became a big mess
Jenny N.
7/16/2024
That is disappointing! We will get a replacement out to you and will be in contact with you shortly.
I used this butyl tape for marine application. It's butyl tape plain and simple. Seals deck and port light fittings as expected. Fair price for the product.
I changed out the OEM bathroom fan with a Maxxair variable speed fan and used this tape for sealing the surface on the roof. It worked wonderfully!
Easy to use, I put in a new roof vent and fan. Still sealing and no leaks.
Douglas
7/31/2024
Still no leaks, remains flexible.
Easy to use, perfect width for new Max air Fan
Its butyl tape....
I used this butyl tape to seal a new water heater into the side of our camper. Worked great! Very satisfied with this purchase and recommend it - seals very well.
Worked great to seal around my tankless water heater install on 2 different RV units.
I ordered this to use for the installation of a MaxxAir fan in a campervan conversion. I have not had a chance to use it yet, but it has the qualities I was looking for: a substantial density, but pliable and compressible to fill in all of the spaces between the flange and the roof of the van. I found there were very few options for a sealing tape that was 1" wide to cover the full width of the flange. It is sticky on both sides and should do a great job for this purpose. I was influenced in my purchase by the fact that it is made by a well established company in the USA that specializes in such products.
Excellent product, easy to work with, fair price!
Perfect for forestall of new ladder.
John
5/23/2026
Sealant tape has held up extremely well
Did not come with the slide topper. When I called in was told it is backorder for 29 days.
There has to be a better way of packaging and shipping the butyl tape. Now it's not a uniform width or thickness. Hopefully I can still make it work for me.
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Gwendolyn Y.
4/4/2025
Love to hear it, Mark! What kind of install are you going to be use the tape with?