

🔧 Bond like a pro, last like a legend.
System Three GelMagic Epoxy Adhesive is a premium 2-part, high-viscosity gel epoxy designed for structural, impact-resistant bonding. Featuring a convenient 2:1 mix ratio with a blue dye indicator, it cures fully in 16 hours at 70°F. Waterproof and marine-grade, it forms superior bonds on wood, metals, concrete, and composites, making it perfect for demanding professional and outdoor applications.








| Brand | SYSTEMTHREE |
| Specific Uses For Product | Landscaping, Marine, Outdoor, Repair, Woodworking |
| Material | Epoxy Resin |
| Item Form | Gel |
| Special Feature | Waterproof |
| Color | Tan |
| Item Package Quantity | 1 |
| Package Information | Bottle |
| Item Volume | 3 Quarts |
| Viscosity | High Viscosity |
| Full Cure Time | 16 Hours |
| Water Resistance Level | Waterproof |
| Unit Count | 96.0 Fluid Ounces |
| UPC | 646697000260 |
| Global Trade Identification Number | 00646697000260 |
| Manufacturer | System Three Resins, Inc. |
| Part Number | 1230K44 |
| Item Weight | 7.93 pounds |
| Package Dimensions | 12.5 x 7.5 x 7.5 inches |
| Item model number | 1230K44 |
| Size | 3 Quart |
| Special Features | Waterproof |
| Batteries Included? | No |
| Batteries Required? | No |
M**.
Excellent multipurpose epoxy resin!
Excellent strong epoxy, cures in pleasant opaque color. I’ve used this to fix a number of things: broken refrigerator drawers, refrigerator shelves, gaps between wood joists, a broken eyeglass frame, and more. Only complaint is that it does take 12 hours to cure, and only cures in warm temperatures. But that’s pretty standard for high strength, epoxy resin.
R**S
New formulation, basically better than before
They have changed the formulation for this expoxy so that the working time is shorter, only about 10 minutes after it is mixed. But it now curess much faster and it is even more of a true, non-sagging, gel epoxy than before. So overall it works great for me and I highly recommend it for those glue ups where you don't want the adhesive dripping down from the joint.
J**Y
Ease of use, beats mixing epoxy and silica.
ease of use.
G**N
Great product
Love this product. Super useful
C**R
no smell after application
This stuff is great. After we applied it we found no smell or vapors. Solid stuff. Would buy again.
D**S
There is a shelf life on this product
Very strong bond, it is quite thick being a gel so it is better then typical epoxys for vertical surfaces
B**S
Working like a dream on a plywood boat project.
Great product. Easy to use. Once it sets up and hardens it is bulletproof. I am using it as an adhesive to build a plywood boat. Extremely pleased with its performance.
W**E
This stuff is great
Been looking for years for an epoxy that has the characteristics of this gel. Look up the word thixotropic. The ability to work vertically without having the gel self level is needed.
TrustPilot
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