WELLUCK Black Silicone Caulk, 100% Waterproof Silicone Sealant Adhesive Caulking,for RV, Kitchen,Bathroom, Window, Door, Glass, Auto Leak Sealing 10.2FL.OZ/300ML（1 Pack）
Condition: New
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Wednesday, Jun 3
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Size: 1 Pack
Color: Black
Features
- WATERTIGHT SEALINGWELLUCK black sealant silicone provides the ultimate waterproof seal seam protection against water leaks, odors, UV rays, extreme heat and pressure. 100% waterproof on indoor, outdoor and underwater surfaces. Widely applicable to most surfaces such as metal, tile, ceramic, stone, wood, glass, concrete and more.
- FORMULATED TO LASTOur black caulk offers reinforced pressure resistance for RV, Indoor windows and doors, automotive repair,shower and tub caulk protection; rated to safeguard against high heat, corrosion, leaks and acids for 15 years; resist black spots, stains .
- NO CLUMPY TEXTURE With a clog-free thermoplastic nozzle, our black caulking waterproof flows with just the right viscosity- not runny nor clumpy. This window sealant caulk is 100% waterproof Silicone with no fillers.(Cut the main opening of the bottle, install the clog-free nozzle, then bevel the nozzle opening, push and squeeze out the silicone sealant from the tail and it can be used.)
- ZERO-SHRINKINGWELLUCK windows silicone caulk features excellent adhesion and maintains long-lasting flexibility; Won't shrink or crack even when constantly exposured to extreme weather (-122F to +322F), including cold, heat, UV, or constant raindrops.
- Quick Setting & CuringCaulking sealant surface dries in 30 minutes, sets up firmly and fully cures in 48 hours; NOTE: The time required for the caulk surface to dry & cure will vary depending on application environment(A dry construction environment of 75F is most suitable).Our bathtub caulk is safe and delivers smooth, uniform sealing,no chemical smell.Please use it as soon as possible within 3 days after opening.
- TIP:When the product is filled, some overflowing and dry traces may be left after being squeezed. This is normal filling residue, please don't care.
Color: Black
Brand: WELLUCK
Liquid Volume: 10 Fluid Ounces
Full Cure Time: 48 Hours
Initial Hardening Time: 30 Minutes
Brand Name: WELLUCK
Number of Items: 1
Manufacturer: WELLUCK
Unit Count: 10.2 Fluid Ounces
Model: PL0123-2
Part Number: 120
Material Type: Silicone
Full Cure Time: 48 Hours
Initial Hardening Time: 30 Minutes
Surface Recommendation: Counter Top, Door, Sink, Tile, Tub, Walls, Window
Water Resistance Level: Waterproof
Color: Black
Item Form: Liquid
Liquid Volume: 10 Fluid Ounces
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Jun 3
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: 1 Pack
Color: Black
I used the WELLUCK Black Silicone Caulk on my camper roof, and it worked perfectly! It’s 100% waterproof, provides excellent sealability, and levels smoothly for a clean finish. The quality is outstanding—crack-resistant, flexible, and long-lasting. Easy to apply and looks great when dry. If you own an RV or camper, this is a must-have for sealing windows, doors, and roof joints. Great value for money and peace of mind against leaks. Highly recommend!
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Reviewed in the United States on November 12, 2025 by Lorin Rexrode
Size: 12 Pack
Color: Black
The flow is good,not to thick,dries quick and doesn't run.Happy overall with price, quality and color.Cleans up easily with a little acetone and sticks well.
Reviewed in the United States on December 7, 2025 by Thomas B.
Size: 4 Pack
Color: Black
Great for leaky exterior window sills and seals. I “painted” this stuff on my sunny side wooden window sills that keep cracking and letting water in. Easy enough to “paint” on with a putty knife for 100% sill coverage. Definitely NOT water clean up which is why it works!!! A nice gasoline handwashing after use works well unless your a new (er) generation puss.
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Reviewed in the United States on July 24, 2025 by CabinLife
Size: 4 Pack
Color: Clear
flows smoothly and dries clear.
Reviewed in the United States on May 10, 2026 by butch
Size: 1 Pack
Color: Black
Did what it should
Reviewed in the United States on May 9, 2026 by Sharon
Size: 1 Pack
Color: Almond/Cream
Had to return this product after the due date due to I was in the hospital. The color is terrible. It’s yellow not beige does not match anything now they will not return this terrible product
Reviewed in the United States on April 23, 2026 by Amazon Customer
Size: 4 Pack
Color: Clear
Caulk works but got four tubes with no application nozzles. Hard to apply without nozzles. Disappointing to have to get nozzles separately.
Reviewed in the United States on March 5, 2026 by Priscilla or Rick Rothwell
Size: 4 Pack
Color: Clear
Good silicone for boats clear and neat.
Reviewed in the United States on April 3, 2026 by BooBoo