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⚓ Seal the deal with MarineWeld – where strength meets precision!
J-B Weld MarineWeld is a high-performance two-part epoxy adhesive in a convenient syringe, delivering a waterproof, UV-resistant, and chemical-resistant bond with 2350 psi tensile strength. Designed for marine and watercraft repairs, it cures fully in 1 hour, maintaining a bright white finish and ensuring durable, flexible repairs on plastics and fiberglass.














| ASIN | B00R2CDVIW |
| Best Sellers Rank | #2,245 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in Hardware Adhesives & Sealers |
| Brand | J-B Weld |
| Brand Name | J-B Weld |
| Color | 25 ml. |
| Compatible Material | Plastic |
| Container Type | Syringe |
| Customer Reviews | 4.6 out of 5 stars 3,189 Reviews |
| Full Cure Time | 1 hours |
| Global Trade Identification Number | 00043425501721 |
| Included Components | JBWeld 50172 |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | BONDING_ADHESIVES |
| Item Weight | 2.1 ounces |
| Manufacturer | JBWeld |
| Material | Fiberglass |
| Material Type | Fiberglass |
| Model | 50172 |
| Number of Pieces | 1 |
| Other Special Features of the Product | UV Resistant, Waterproof |
| Part Number | 50172 |
| Special Feature | UV Resistant, Waterproof |
| Specific Uses For Product | Marine, Watercraft Repair |
| Tensile Strength | 2350 psi |
| UPC | 043425501721 043425700162 |
| Viscosity Level | High |
| Volume | 25 ml |
| Warranty Description | Manufacturer Warranty |
| Water Resistance Level | Waterproof |
A**R
very quick delivery and great price.
Great price, arrived quickly. this is a great product and cures quickly and with applicator tube, it is very easy to use. When dry, epoxy is very durable. Much less expensive than at big box stores.
J**.
Does what others fail to do
This stuff does the job you’ve wished others would, but failed. Easy to mix, and easy to apply. Plus once it hardens, it remains bright white, perfect for repairing appliances with minor damage. The cap(s) actually work! That alone is reason to recommend this product. I will definitely buy it again.
J**.
A Must for Fiberglass Repairs
Got a hole in the corner of my fiberglass shower pan. I used an oral syringe to suck up the mixed epoxy and backfill the hole for added sturdiness. Waited an hour, mixed a little more epoxy and used the flat edge of a caulk/grout silicone knife to level the top nicely. The epoxy is easy to spread, but thick enough that it doesn't flow downward or outward from holes your fixing. Great tensile strength is a plus when I might accidentally bump or step in this repaired area or put pressure on it cleaning it. Love that it resists water and chemicals, it being in a shower that is cleaned often. Great product. I can see me using this if I have any future fiberglass scrapes or holes.
J**A
Works as it should
Works great - smaller then they used to be- but still good product
C**S
Good product, bur small containers
This product sets up well, but not as hard as other epoxies from this company. The packages do not contain a lot of product, but are suitable for smaller repairs, and the adhesion is good. I would recommend it with the caveats above.
L**N
Works Great
Works great cured quickly and was easy to apply. They also give you a pretty good amount so having the cap is very nice. It is nice that it can be used on a multitude of materials for future fixes. Haven't water tested it yet, but it seems like it should fix the leak in my son's boat.
J**S
would but again
Good product
B**S
good product
good product at a good price
D**L
Dries quickly & waterproof.
Very impressed with this product. Used to seal crack on toilet cistern. Easy to use, and dries quicky. Just following the instructions. Cistern not leaking now and remains water tight. Highly recommended.
H**S
Received faulty products
I got two packets for an important project. When we opened one, one of the tubes was completely solid. Not to worry, I had an extra one, right? Wrong! That one was also in the same condition. So now we are delayed by a week at least until we get another suitable product, not to mention the financial losses .
C**.
Hervorragend super klasse
Sehr sehr aber gutes Zeug. Da lohnt sich die Lieferung aus England. Gut ausdrückbar gut verrührbar wird nach 40 Minuten gummiartig so dass ich in mein offenes GFK Loch erst füllen und danach nach 40 Minuten mit einer Schraube versehen konnte es hält alles bombenfest. Auf dem Foto mit der Schraube war ein Versuch der Festigkeit.
M**E
Cumple
Funcionó a la perfección
K**G
Good 2 part epoxy
Works really well, but is finicky to mix...mix too much, and it hardens before you can get it on what you want to glue, mix too little, and it never sets. You will probibly use 1/4 of the tube just getting used to it. After it dries, you can carve it with a sharp knife, or sand it with FINE sandpaper, I used it to fill the chips in a ceramic white cookie jar, feathering the edges with a wet finger just before it hardened, then carefully shaping with an exacto.
Trustpilot
4 days ago
2 weeks ago