

🛠️ Seal the deal like a pro—because your projects deserve precision and power!
The Newborn 377 Caulk Gun is a heavy-duty, 29 oz capacity tool designed for professional-grade sealing and adhesive application. Featuring a 10:1 thrust ratio for smooth, low-effort use, it’s built from durable steel and includes essential accessories like a spout cutter and seal puncture tool. Water-resistant and compatible with a wide range of surfaces, this caulk gun is engineered to boost efficiency and deliver flawless results on subfloors, ceilings, roofs, and more.

| Color | Gray |
| Brand | Newborn |
| Item Weight | 5.3 Pounds |
| Liquid Volume | 29 Fluid Ounces |
| Item Form | Gel, Liquid |
| Maximum Gap Fill | 45 Inches |
| Surface Recommendation | Tile, Pipe, Counter Top, Window, Door, Sink, Tub, Walls, Gutter |
| Water Resistance Level | Water Resistant |
| Number of Items | 1 |
| Manufacturer | Newborn |
| UPC | 039922581007 |
| Global Trade Identification Number | 00039922581007 |
| Unit Count | 1.0 Count |
| Material | Steel |
| Part Number | 377 |
| Item Weight | 5.3 pounds |
| Product Dimensions | 42.9 x 7.6 x 3.4 inches |
| Item model number | 377 |
| Is Discontinued By Manufacturer | No |
| Size | 1 |
| Item Package Quantity | 1 |
| Measurement System | Inch |
| Included Components | Unit^Instruction Guide |
| Batteries Included? | No |
| Batteries Required? | No |
H**E
Outstanding Tool.
This is a well made tool. It is heavy duty and just the tool I needed. I have some very large windows over 6 feet tall with brick facia that are over 16 feet above the ground to the base of the windows. I quickly modified this tool by swapping out the pusher plate with one for a 10 Oz cartridge. The screw thread on the push rod is 1/4 - 24, so if you can plan ahead of time, you can get the appropriate sized nuts to adapt it. I used two pieces of duct tape to secure the 10 Oz. Pusher plate. A piece of duct tape will also hold the cartridge in the larger carrier. I would suggest an extended nozzle for an even better job to address the thickness of the larger carrier. New Norn does sell an adapter for the 10 Oz cartridges that I am sure is equally well made. I was looking for the maximum of reach and reduced weight for my needs. I finished my tasks in under two hours. Outstanding tool! Big problem solver for a DIY guy.
P**E
Great Indeed!!!
Just what I needed!!!!
S**E
Very good caulking gun for hard to reach spots
This item helped me to caulk a very hard to get to spot. Item is well made, works well and will last for many years. Just know that to use this with a standard 10.1 ounce caulking tube I had to change the plate that pushes the plunger in the caulking tube. I unscrewed nut took off large plate and put on a plate that has a diameter of about 1 1/4 inches from a standard caulking gun.
P**P
Good for longer reaches into the house eaves
Seems to function well. Well made and for the 29 oz tubes of glue/caulk. Problem is that there is not a good selection of caulk, especially multiple colors in the 29 oz size. Need to buy or make a 10 oz adapter - the company does sell one but these items are pricey. Have not did alot of caulking yet but so far it functions as a well made item should.
A**W
Good gun
Bought this to reach some areas in the eaves of my house off of a scaffold. It did a good job. For what it is, it's pricey, but it is a quality product that will last a lifetime for sure. You do have to buy the adapter if you want to use standard 10oz caulk tubes, which is annoying. For the price I feel like that should be included in the package. Just something to be aware of.
R**R
Big!
The product is large and can be rather heavy if you weren't expecting it. It is well-built.
B**F
perfect transactions
great product
S**N
Not what I expected
This gun has a large barrel not comparable with any caulk available. Not clear in description!
Trustpilot
1 week ago
3 weeks ago