🖤 Seal it like a pro — strong, sleek, and waterproof!
J-B Weld 31319 Black RTV Silicone Sealant and Adhesive is a 3 oz industrial-grade, waterproof, and crack-resistant sealant designed for bonding and sealing uneven surfaces such as rubber and tile. Made in the USA, it offers professional durability with a sleek black finish, ideal for both industrial and home projects.
| Material | Plastic |
| Brand | J-B Weld |
| Style | Industrial |
| Item Weight | 109 Grams |
| Item dimensions L x W x H | 9 x 5 x 2 inches |
| Compatible Material | Rubber |
| Water Resistance Level | Waterproof |
| Item Form | Oz |
| UPC | 043425313195 |
| Unit Count | 3.0 Ounce |
| Global Trade Identification Number | 00043425313195 |
| Number of Items | 1 |
| Color | Black |
| Surface Recommendation | Tile |
| Manufacturer | JBWeld |
| Model | 31319 |
| Item Weight | 3.84 ounces |
| Product Dimensions | 9 x 5 x 2 inches |
| Country of Origin | USA |
| Item model number | 31319 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 31319 |
| Bulb Type | Fluorescent |
| Special Features | Crack Resistant, Waterproof, Strong |
L**S
J-B Weld 31319 Black RTV Silicone Sealant: A Dependable Sealing Solution
The J-B Weld 31319 Black RTV Silicone Sealant is a highly reliable and versatile product that deserves a spot in any serious DIYer's or professional's toolkit. Its excellent adhesion, flexibility, and resistance to chemicals and extreme temperatures make it an ideal choice for creating durable, leak-proof seals in demanding environments, particularly in automotive applications. While requiring proper ventilation during cure and offering a strong, permanent bond, its performance consistently delivers. For dependable sealing where a black finish is desired, this J-B Weld product is a proven and highly recommended solution.
D**Y
This is RTV at it's best.
Excellent RTV, and after use, when you put the cap on and put it on the shelf, it will still be good in 6 months. I will never buy Permatex again.
A**R
Good product
Great product, but have to use it in a few months. Tried to use some a few months after popping the seal, and the whole tube was solid.
T**D
works with silacone
worked great in shower to attach handheld fixture to a silacone spacer.
D**D
Works great
Great 👍
J**N
Buy it. Once you use it you'll be hooked on it.
I always keep 2 in the job drawer. A gotta have for any handyman.
M**C
Works fantastic
Worked great. I used to to glue on my daughters car mirror.
A**S
A lot of caulking dry up in the tube
Hard to get out of the tube most of it dry up. I Let set for 3 days because it was cold out when delivered. I got small job done will not buy again. Better go to the store to buy fresh tub.
Trustpilot
4 days ago
1 week ago
