Manufacturer | Dicor |
---|---|
Place of Business | St Paul, AB T0A 3A0, CA |
Brand | Dicor |
Model | 501LSW-1 |
Product Dimensions | 28.58 x 5.08 x 5.08 cm; 362.87 g |
Item model number | 501LSW-1 |
Batteries | 1 Unknown batteries required. |
Is discontinued by manufacturer | No |
Manufacturer part number | 501LSW-1 |
OEM part number | 501LSW |
Special features | Stain resistant |
Speed Rating | RV/Camper Roof Repair Sealant/Caulk |
Item Weight | 362 g |
Country of origin | USA |
One-time purchase
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Ships from: 鶹.ca Sold by: 鶹.ca
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Dicor 501LSW-1 Epdm Self-Leveling Lap Sealant-10.3 Oz. Tube, White, 10.3 Fluid_Ounces (Packaging May Vary)
Purchase options and add-ons
Material | Rubber |
Brand | Dicor |
Style | Self-Leveling |
Item weight | 12.8 Ounces |
Item dimensions L x W x H | 28.6 x 5.1 x 5.1 Centimetres |
Compatible material | Metal |
Water resistance level | Waterproof |
Item form | Liquid |
EU Spare Part Availability Duration | 5 Years |
UPC | 700115572927 677917000319 677917000333 |
About this item
- Creates a secure, secondary seal along the roof's edges, air vents, vent pipes and screw heads
- Adheres firmly to aluminum, mortar, wood, vinyl, galvanized metal, fiberglass and concrete
- Compatible with EPDM and TPO sheeting
- Color: White
- Item expires 2 years after manufacturers stamped date
Frequently bought together

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Important information
Legal Disclaimer
Warning: Product may contain materials cautioned by California Proposition 65
From the manufacturer




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Dicor HAPS-Free Self Leveling Sealant, White
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Dicor HAPS-Free Self Leveling Sealant, Dove
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Dicor HAPS-Free Self Leveling Sealant, Black
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Dicor HAPS-Free Self Leveling Sealant, Tan
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Dicor HAPS-Free Self Leveling Sealant, Grey
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Dicor HAPS-Free Self Leveling Sealant, Ivory
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Customer Reviews |
4.6 out of 5 stars 13,761
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4.6 out of 5 stars 711
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4.5 out of 5 stars 526
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4.4 out of 5 stars 199
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4.6 out of 5 stars 581
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4.4 out of 5 stars 159
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Feature | Sun-ray stabilized to avoid spoiling and discoloration | Sun-ray stabilized to avoid spoiling and discoloration | Sun-ray stabilized to avoid spoiling and discoloration | Sun-ray stabilized to avoid spoiling and discoloration | Sun-ray stabilized to avoid spoiling and discoloration | Sun-ray stabilized to avoid spoiling and discoloration |
Size | 10.3 oz. tube | 10.3 oz. tube | 10.3 oz. tube | 10.3 oz. tube | 10.3 oz. tube | 10.3 oz. tube |
Compatibility | Works with EPDM, TPO and PVC membranes | Works with EPDM, TPO and PVC membranes | Works with EPDM, TPO and PVC membranes | Works with EPDM, TPO and PVC membranes | Works with EPDM, TPO and PVC membranes | Works with EPDM, TPO and PVC membranes |
Product description
A flexible compound designed for sealing EPDM rubber, TPO, fiberglass, wood, aluminum, steel or masonry, which may be painted over after outer skin has formed.
Product information
Technical Details
Additional Information
ASIN | B000BRF7QE |
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Customer Reviews |
4.6 out of 5 stars |
鶹 Rank |
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Date First Available | Dec 8 2011 |
Feedback
Compare with similar items
This Item ![]() Dicor 501LSW-1 Epdm Self-Leveling Lap Sealant-10.3 Oz. Tube, White, 10.3 Fluid_Ounces (Packaging May Vary) | Recommendations | ? | ? | ? | ? | |
Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | |
Price | $16.19$16.19 | $26.23$26.23 | -14%?$59.95$59.95 List:?$69.95 | $99.95$99.95 | $16.61$16.61 | -6%?$75.10$75.10 Was:?$79.88 |
Delivery | Get it by Thursday, Aug 14 | Get it by Wednesday, Aug 13 | Get it by Wednesday, Aug 13 | Get it Aug 12 - 13 | ||
Customer ratings | ||||||
Sold by | 鶹.ca | Express Health Supply | Ziollo | Liquid Rubber Canada Inc | 鶹.ca | Air Pure Shop |
material | Rubber | Polyether | Rubber, Silicone | Polymer | Rubber | Aluminum |
form | Liquid | Liquid | Liquid | Liquid | Liquid | Paste |
surface suggestion | Roof,Vent | Roof | Wood, Plastic, Metal, Fiberglass | Plastic | Roof | Roof |
compatible material | Metal | Metal | Rubber | Wood, Rubber, Metal | Rubber, Epdm, Dicor Diflex Ii, Tufflex, Pvc, Pritek Tpo | Rubber, Fiberglass, Wood, Aluminum, Alloy Steel |
stain-resistant | ? | ? | ? | ? | ? | |
water resistance | waterproof | waterproof | waterproof | waterproof | waterproof | water resistant |
weight | 12.8 ounces | 10.1 ounces | 10 ounces | 9 pounds | 0.6 pounds | 1.5 kilograms |
style | Self-Leveling | Non-Leveling Ultra Sealant | caulking | 1 Gallon | Non-Leveling | Compact |
Brands in this category on 鶹
Customer reviews
Customers say
Customers like the quality, sealing, and application of the sealant. They mention it works great as intended, seals like factory sealer, and levels itself nicely to a flattened smooth surface. Customers also appreciate the durability, saying it stays pliable for years and is leak-proof.
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Customers are satisfied with the quality of the sealant. They mention it's a really practical product for anyone doing RV or camper repairs. Customers also say it works great for trailer roofs whether touching up or re-doing entirely.
"Good product, better than ordinary caulk for your rv" Read more
"...Works great and this is what you should be using if you are sealing something that you want to keep water tight...." Read more
"Great product recommend" Read more
"I used this product to seal my new vent fan in my camper van. Worked great and I'm sure it is completely watertight." Read more
Customers find the sealant excellent for sealing during a roof fan install. They mention it holds up under vibration and gives a clean, sealed finish. Customers also say it's completely watertight.
"...Easy to apply. 2 weeks now and no leaks. Still soft and curing though. I like." Read more
"...Seems durable so far and gives a clean, sealed finish. Definitely recommend for DIY fixes!" Read more
"...It did a good job of sealing however not the best looking job - time determine how well this product lasts." Read more
"...it self to a flattened smooth surface to ensure any moisture will not sit in pockets. Would buy again. One tube was plenty for the install." Read more
Customers like the application of the sealant. They mention it's easy to apply on flat surfaces, flows well, and is convenient.
"Easy to apply, no offensive odour and will stay pliable for years!" Read more
"The product arrived very quick and was as described. Easy to use like any other sealant. I used it on my RV roof...." Read more
"...Super easy to apply C it levels itself nicely and sticks well to the surface. Its a really practical product for anyone doing RV or camper repairs...." Read more
"Used the product to seal in an RV roof antenna. It applied easily to the roofing and antenna materials and levelled it self to a flattened smooth..." Read more
Customers like the self-leveling capability of the sealant. They mention it levels itself nicely and sticks well to the surface. Some say it's perfect for their job and bridges across both gaps.
"...It holds up under vibration. Self-levelling...." Read more
"...This product (Dicor) is self leveling and makes a good seal." Read more
"...Super easy to apply C it levels itself nicely and sticks well to the surface. Its a really practical product for anyone doing RV or camper repairs...." Read more
"...The product self levels very well and was perfect for my job." Read more
Customers are satisfied with the durability of the sealant. They mention it appears to stay pliable for years and doesn't dry or solidify if air can't get to it.
"...Seems durable so far and gives a clean, sealed finish. Definitely recommend for DIY fixes!" Read more
"Easy to apply, no offensive odour and will stay pliable for years!" Read more
"...1 for sealing during a roof fan install. It holds up under vibration. Self-levelling...." Read more
"Won't dry/ solidify if air can't get to it...." Read more
Reviews with images

Very good for sealing RV trim
Top reviews from Canada
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- Reviewed in Canada on April 22, 2025Verified PurchaseI used this Dicor self-leveling sealant to seal the vents on my fiberglass camper from the '80s, and it worked great. Super easy to apply C it levels itself nicely and sticks well to the surface. Its a really practical product for anyone doing RV or camper repairs. Seems durable so far and gives a clean, sealed finish. Definitely recommend for DIY fixes!
- Reviewed in Canada on July 3, 2025Verified Purchaseworked as described, just make sure your surface is clean
worked very well to install the roof vent on my rv
used about half a canister for 1 roof vent, but went and got more just incase for the second vent
- Reviewed in Canada on June 29, 2025Verified PurchaseUsed this product to seal the vents on the roof of my trailer. I recommend that you use this product on a hot day to ensure the sealant is more liquid otherwise it tends not to spread evenly and sets-up to quickly. It did a good job of sealing however not the best looking job - time determine how well this product lasts.
- Reviewed in Canada on June 5, 2025Verified PurchaseProduct works great as intended and showed up on time
- Reviewed in Canada on July 23, 2025Verified Purchase? 7
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Reviewed in Canada on July 5, 2025Verified PurchaseRe?u dans les dlais
- Reviewed in Canada on September 19, 2024Verified PurchaseI installed a new skylight in our rv and used the Dicor 501 to seal the screw holes, skylight flange, and the over the exposed screw heads and flange edge. The product self levels very well and was perfect for my job.
- Reviewed in Canada on June 20, 2025Verified Purchasetres bien
Top reviews from other countries
- Alpha_whiskeyReviewed in the United States on July 14, 2025
5.0 out of 5 stars Hard to beat
Verified PurchaseDicor is the only lap sealant I use on the roof of my RV. It is a well known and reputable brand and I have never had any issues with application or failure. It works well on the roof of my Crossroads RV and the quality is hard to beat. It applies easy over the old Dicor and settles well into all the cracks and imperfections. The new white looks good and dries quickly and I have even applied while it was sprinkling rain
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ZerpReviewed in Japan on February 12, 2023
2.0 out of 5 stars ƶ/ǷꈤΤ`ֹ
Verified Purchase˽Υץꥱ`;ФͨޤǤ˚ݤŤޤǤעڤ`֤˽ӾA볡ϻǤޤϻܞǤʤ٤ĤޤuƷϡФ˱椵Ƥ볡ϡۤޤʹڼ֤ĤȤˤʤäƤޤơhˤϡ`֤ܷ⤹롹餫Ƥޤעڤ״̬ȡϲܤǤƷʤΤǡdz˸߁ʤΤǤBƤޤ
- sweReviewed in the United States on August 4, 2025
5.0 out of 5 stars Does just what it is supposed to do.
Verified PurchaseThis has been the most widely used in all the reviews I read so I used it. Appears to work great but have only had it on the RV roof for a few weeks! Does NOT spread out nearly as much as I thought it would. That was not an issue, I just had to use a bit more than I thought I would. This is pretty expensive stuff, but A LOT cheaper than taking it to an RV dealer. Prep work is, of course, the hardest part of the job and I think I did a good job of getting the RV roof items resealed thanks to this product.