


🛠️ Seal the Deal with OSI!
The OSI GS121 Gutter and Seam Sealant is a 5 fl oz liquid sealant designed for permanent flexibility and water resistance. It effectively seals common gutter and downspout materials, including aluminum, vinyl, and galvanized metal, while adapting to temperature changes for a durable finish.
| Material | White & Aluminum: SBR Rubber, Clear: Synthetic Polymer |
| Brand | OSI - HENKEL CORPORATION |
| Style | Bead |
| Item Weight | 6.72 ounces |
| Item dimensions L x W x H | 8.25 x 15.62 x 10 inches |
| Compatible Material | Aluminum, Vinyl, Galvanized Metal |
| Water Resistance Level | Water Resistant |
| Item Form | Liquid |
| Color | White |
| Surface Recommendation | Gutter |
| Manufacturer | OSI |
| Part Number | 1797609 |
| Item Weight | 6.7 ounces |
| Product Dimensions | 8.25 x 15.62 x 10 inches |
| Item model number | 1797609 |
| Size | 5 fl oz |
| Item Package Quantity | 1 |
| Included Components | Painting Supplies;Abrasives & Surface Preparation;adhesive-caulk |
| Batteries Included? | No |
| Batteries Required? | No |
L**E
Perfect product
Self leveling and does the job of sealing up things up with persision. This is my go to for handyman projects
M**.
This stuff is amazing!
Nice consistency when applying, and drys to a hard by flexible seal. This caulking seems to be able to plug leaks in my pergola gutter better than anything else.
C**E
Four Stars
Ready to install
T**.
Works great
This stuff works great on gutter seams. It’s made by Henkel, so I would expect it to do what it says. Just make sure to clean the aluminum before applying.
M**Y
Three Stars
So far it has worked but is a little difficult to apply.
O**H
Fantastic
Just enough for the small job at hand. Fantastic sealing/curing time. Works great. Highly recommend
D**E
all good
good
L**N
It works
This works so good in stopping leaks.
Trustpilot
2 months ago
2 days ago