








⚓ Seal the deal with MarineWeld — where strength meets speed!
J-B Weld 50172 MarineWeld White Epoxy Syringe delivers a high-viscosity, waterproof bonding solution with 2350 PSI tensile strength. Designed for marine and underwater repairs, it cures fully in just 1 hour, making it ideal for plastic and fiberglass fixes on boats and watercraft. Trusted by professionals and DIY enthusiasts alike, this 25ml syringe offers precision application and durable results straight from the USA.








| ASIN | B00R2CDVIW |
| Best Sellers Rank | #2,603 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Epoxy Adhesives |
| Brand Name | J-B Weld |
| Color | White |
| Compatible Material | Plastic |
| Container Type | Syringe |
| Country Of Origin | USA |
| Customer Reviews | 4.6 4.6 out of 5 stars (9,663) |
| Full Cure Time | 1 Hours |
| Global Trade Identification Number | 00043425501721 |
| Included Components | 1 carded Syringe |
| Item Form | Gel |
| Item Package Quantity | 1 |
| Item Type Name | BONDING_ADHESIVES |
| Item Weight | 2.1 Ounces |
| Manufacturer | JB Weld |
| Material Type | Fiberglass |
| Model | 50172 |
| Other Special Features of the Product | Strong, Waterproof |
| Specific Uses For Product | Boats, Under water/Wet, fiberglass, personal watercraft |
| Tensile Strength | 2350 Pounds Per Square Inch |
| UPC | 043425501721 043425700162 |
| Unit Count | 25 Milliliters |
| Viscosity | High Viscosity |
| Volume | 25 Milliliters |
| Water Resistance Level | Waterproof |
Y**G
Works 💪
This product is very strong can repair ur fuel tank
A**R
Excellent
Dries very hard and works well.
P**N
Great quality
Worked very well, I filled a hole in bathroom tub
S**I
Good
Good
O**R
استخدمته في لصق حامل مرأة السيارة وانبهرت من النتيجة حيث ان صلابة الاصق ومتانته لم أكن اتوقعها بهذا القدر
G**L
Great product
Very good product and gives a nice result, fast delivery too.
M**K
very good
Sturdy and works great
C**L
used to stick magnets back into a magneto on a motorcycle, charging system works now and combined with the putty the magnets will never move
R**N
I like this weld. I used it to shore up a developing crack on a crockpot. Extends the life of the crockpot, which would be hard to replace. The cured material is just as hard as the ceramic. The patch I put in place did partially break off after many years, however most of it is still in place.
E**S
Muy buen pegamento flexible y a prueba de agua, seca muy rápido toca probar su durabilidad
J**T
i use this stuff in crafting and i gotta say it works great. super easy to use, just mix parts A & B. it dries to a very dark glossy grey. its smooth and is very durable. i find that it holds the joint very well. these are small tubes but go a long way, plus the price is right so its all a win win
H**S
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 .
Trustpilot
2 months ago
3 weeks ago