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🌊 Seal the deal with MarineWeld — the ultimate waterproof fix that works below the surface!
J-B Weld MarineWeld is a high-strength, two-part epoxy adhesive designed for permanent, waterproof repairs on multiple materials including metal, fiberglass, plastic, and wood. It cures underwater, sets in 20 minutes, and reaches full strength of 3200 PSI within 24 hours, making it ideal for marine and outdoor applications where durability and environmental resistance are critical.














| ASIN | B00R2CDVIW |
| Best Sellers Rank | 8,594 in DIY & Tools ( See Top 100 in DIY & Tools ) 84 in Universal Adhesives |
| Brand | J-B Weld |
| Colour | White |
| Compatible Material | Fibreglass, Metal, Plastic, Wood |
| Container Type | Tube |
| Customer Reviews | 4.3 out of 5 stars 2,871 Reviews |
| Full Cure Time | 24 Hours |
| Global Trade Identification Number | 00043425501721 |
| Included Components | Glue |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Type Name | "MarineWeld" Waterproof Adhesive, White, 25ml |
| Item Volume | 25 Millilitres |
| Item Weight | 2.1 Ounces |
| Item form | Liquid |
| Manufacturer | JB WELD LTD |
| Manufacturer Part Number | 50172 |
| Material | Epoxy Resin |
| Model Number | 50172 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Strong, Waterproof |
| Special feature | Strong, Waterproof |
| Specific Uses For Product | Marine, Watercraft Repair |
| Specific uses for product | Marine, Watercraft Repair |
| Tensile Strength | 3200 Pounds Per Square Inch |
| UPC | 043425501721 043425700162 |
| Unit Count | 25.0 millilitre |
| Viscosity Level | High |
| Water Resistance Level | Waterproof |
I**S
Superb - best waterproof/outdoor two part glue/filler on the market.
The best glue/filler of its kind, this stuff cures rock solid, with decent work/cure time, and easy to use. Recommend you mix in small quantities, as it sets quickly and becomes lumpy in doing so, if you keep trying to mix it. Superb at its “job”, though, especially for water features (this was a repair to my mother-in-law’s broken water feature, results are perfect!).
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.
C**Y
does not work on all surfaces, smells awful but does work well on others.
I will explain what i bought it for, how it worked, or not, and what I mean by the smell..... I bought this to fix the loo seat onto the loo and it sort of worked... the loo seat is strange, unlike the usual nut/bolt to hold it onto the loo, it has a hexagonal plastic head with a thin body that goes through the fixing hole and a plastic bottom to stop it pulling through - all one piece. This hexagonal head then slots through a slot on the bottom of the loo seat and has a rubber suction foot which also works to stop the hexagonal head sliding out of the slot on the loo seat. with me so far... OK, SO I tried super gluing and all sorts before resorting to epoxy. having use epoxy before I wanted a waterproof one so that the loo seat could still be cleaned regularly. This product did not stick at all to the rubber foot, which I had decided needed fixing as it had split. This product did not stick at all to the ceramic base of the loo ( glossy surface) it set and popped right off. This product DID stick to the plastic hexagonal head and the inside of the slot on the loo seat ( plastic). so - the loo seat is attached a gain, and if the epoxy holds, I do not need to worry that the rubber foot being split will let the hexagonal head slip out, as it is firmly stuck in place ( for now) I am surprised that it did not stick to the rubber foot, I have used epoxy to stick rubber to glass before and it worked well, perhaps rubber to rubber does not create a good bond? and finally - the smell - oh the smell. Epoxy has always had a chemically smell and sometimes a slightly fishy smell, but this stuff has a really really strong and unpleasant mix of rotten fish and burnt hair - really bad, it took 2 days of having the bathroom windows open to get it out, although it was much less strong the second day, but fair warning - using it indoors is probably not what they had in mind for this stuff and you pay the smelly price for it. I hope this helps.
M**.
OUTSTANDING
OUTSTANDING This was used to repair a padle for a iSUP. Only one I would ever trust to do it right first time everytime
A**R
Really good product
Snapped my toilet where the lid goes on and plan to refurb bathroom so decided to try fix it for now. Didn’t think it was going to work but it has! Brilliant Full set time 24 hours Could probably carve back neat
W**U
Ok
Not durable, had to seek alternative
A**R
Excellent
Motorhome shower plug hole cracked and this sealed it good matching the colour well too
A**.
No good
I’ve had a JB weld products before and they’ve been very good however this is total cr#p. It seems to foam up when drying, it doesn’t set hard and it’s difficult to sand.
R**Y
Ce qui est ce qu’ils disent du produit est vraiment vrai
Je vais un morceau qui était décollé à l’extérieur de mon bateau, il la vis ne tenait plus. J’ai bouché l’ouverture avec ce produit et tout a été réglé en 24 heures. Je le conseille vraiment.
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 .
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.
M**E
Cumple
Funcionó a la perfección
G**H
Received hardened epoxy could not use.
One of the tube contents had dried out and the syringe did not move even a millimetre. So had to throw it in the bin. I waited 3 days for the epoxy to repair an important job, but now it is postponed indefinitely. A big Thanx to amazon customer service, at least I was not at loss.
Trustpilot
5 days ago
3 weeks ago