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โ Seal it. Strengthen it. Sail on with confidence.
J-B Weld 50172 MarineWeld White Epoxy Syringe is a high-viscosity, fiberglass-reinforced gel adhesive designed for strong, waterproof repairs on boats, watercraft, and plastic surfaces. It cures fully in 1 hour, delivers 2350 PSI tensile strength, and comes in a precise 25ml syringe for easy application. Trusted by thousands, itโs the go-to epoxy for durable marine and underwater fixes.








| ASIN | B00R2CDVIW |
| Best Sellers Rank | #7,667 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #35 in Epoxy Adhesives |
| Brand | J-B Weld |
| Brand Name | J-B Weld |
| Color | White |
| Colour | White |
| Compatible Material | Plastic |
| Container Type | Syringe |
| Customer Reviews | 4.6 out of 5 stars 10,070 Reviews |
| 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 |
| Item form | Gel |
| Manufacturer | JB Weld |
| Material | Fiberglass |
| Material Type | Fiberglass |
| Model | 50172 |
| Number of Pieces | 1 |
| Other Special Features of the Product | Strong, Waterproof |
| Part Number | 50172 |
| Special features | Strong, Waterproof |
| Specific Uses For Product | Boats, Under water/Wet, fiberglass, personal watercraft |
| 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 Level | High |
| Volume | 25 Milliliters |
| Water Resistance Level | Waterproof |
A**R
Excellent
Dries very hard and works well.
P**N
Great quality
Worked very well, I filled a hole in bathroom tub
G**L
Great product
Very good product and gives a nice result, fast delivery too.
S**I
Good
Good
Y**G
Works ๐ช
This product is very strong can repair ur fuel tank
O**R
ู ูุชุฌ ู ุซุงูู ูุงู ุงูุชููุนุงุช ููุตู ูุงููููุงุฐ
ุงุณุชุฎุฏู ุชู ูู ูุตู ุญุงู ู ู ุฑุฃุฉ ุงูุณูุงุฑุฉ ูุงูุจูุฑุช ู ู ุงููุชูุฌุฉ ุญูุซ ุงู ุตูุงุจุฉ ุงูุงุตู ูู ุชุงูุชู ูู ุฃูู ุงุชููุนูุง ุจูุฐุง ุงููุฏุฑ
M**K
very good
Sturdy and works great
J**Z
Easy applicartion
I used it to fill a hair line crack that showed up on one side of trailer door frame. I used tape to keep the material from going where it wasn't needed and removed the tape right after applying the material. The finished result was very satisfactory. I new J-B Weld was a good product because I have used it on my boat in the past. Durability is excellent and color matches the fiberglass of trailer.
B**G
Great stuff
This stuff is great. Sets fast and very strong. Great for gap filling adhesion thats exposed to the weather.
B**T
Easy to use and it works!
Fixed a split in my kayak and it floats! Not the prettiest fix but worked for me.
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 .
R**K
Excellent for all weather applications
Likely the best epoxy you can buy legally. Stuff cures to a strength we have been able to break yet. I have used it on shower doors, boats, cars and anything I can think of where the weather is going to be a factor. It works well.
Trustpilot
3 weeks ago
1 week ago