if i use part of the tube of dicor, how do i keep the tip from hardening so i can reuse it

YES the Dicor tip has to be sealed. YOU NEED TO KEEP AIR OUT, what I use is a screw that will fit snug in to the tip hole, then make a aluminum foil cone over that. A small wooden dowel that fits in to the tip hole. Anything that will keep air out

Why does the Amazon photo say it is "self-leveling" but under "Usage" say it is non-leveling? Are products sent labeled the same way?

No. There may be an error in the Amazon foto. There are two DIFFERENT Dicor products. Each is labeled self labeling or non leveling on the tube. Self leveling is used for lateral sealing ie. on your roof. Non- leveling is used for verticle sealing ie. where the sides of your RV meet the end cap. I've used it for years and it does a good job.

Will it adhere to the rubber roof material?

Yes it will and works perfect for the project. Mine is a rubber roof...

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501LSW-1 HAPS-Free Self-Leveling Lap Sealant for horizontal surfaces - 10.3 Oz, White, Secure, Ideal for RV Roofing, Maintenance, Repair, Appliance Application

Product ID: 266204460

Details

Brand
Dicor
Item dimensions L x W x H
28.6 x 5.1 x
Item weight
12.8 Ounces
Material
Rubber
Style
Self-Leveling

🔗Adheres to EPDM, TPO, PVC & multiple surfaces

☀️Sun-ray stabilized for UV protection

🛠️Self-leveling for flawless horizontal application

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¥8444

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Seal smart, seal strong — your RV’s best defense against the elements!

HAPS FREE SAFE - Eco-conscious formulation free from hazardous air pollutants, protecting you and the environment.
EFFORTLESS APPLICATION - Self-leveling formula ensures a smooth, professional finish every time—no mess, no stress.
UV PROTECTED DURABILITY - Keeps your RV roof pristine without discoloration or spoiling under harsh sun exposure.
UNIVERSAL COMPATIBILITY - Seamlessly bonds with EPDM, TPO, PVC membranes plus aluminum, wood, vinyl, and more for versatile repairs.
WATERTIGHT FLEXIBLE SEAL - Creates a long-lasting, waterproof barrier that flexes with your RV’s movements to prevent leaks.

Dicor 501LSW-1 is a 10.3 oz white, self-leveling lap sealant designed for horizontal surfaces on RV roofs. It offers superior adhesion to a wide range of materials including EPDM, TPO, PVC, aluminum, and wood. Sun-ray stabilized to prevent discoloration, this waterproof, flexible sealant is HAPS-free and ideal for maintenance, repair, and appliance applications, ensuring a durable, clean, and professional finish.

Specifications

ASIN	B000BRF7QE
Best Sellers Rank	#26,846 in Automotive ( See Top 100 in Automotive ) #10 in RV Cleaning, Storage & Maintenance
Brand Name	Dicor
Color	White
Compatible Material	Metal
Customer Reviews	4.7 4.7 out of 5 stars (14,612)
EU Spare Part Availability Duration	5 Years
Global Trade Identification Number	00677917000333
Included Components	Tube
Item Dimensions	28.6 x 5.1 x 5.1 centimeters
Item Form	Liquid
Item Type Name	Dicor 501LSW-1 Lap Sealant - 10.3 oz.
Item Weight	12.8 Ounces
Manufacturer	Dicor
Material Type	Rubber
Model	501LSW-1
Number of Items	1
Part Number	501LSW-1
Style Name	Self-Leveling
Surface Recommendation	Roof,Vent
UPC	677917000319 700115572927 677917000333
Unit Count	1 Count
Water Resistance Level	Waterproof

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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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¥8444

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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