Professional half-round caulking gun made from durable steel and a lightweight zinc alloy handle. Features a center-mounted push mechanism for smooth, easy sealant application.

Release date：2025-08-25 16:49

Product Introduction

The Half-Round Caulking Gun (BK-407002) is a professional-grade manual sealant applicator designed for effortless dispensing of silicone, acrylic, and polyurethane sealants. Featuring a sturdy steel half-round cradle barrel and a lightweight yet robust zinc alloy handle, this tool provides optimal thrust without causing user fatigue. The precision center-mounted push mechanism distributes pressure evenly down the rod, making it easy to achieve clean, smooth caulking lines around windows, doors, sinks, and countertops.

Product Features

Durable Body: Made from high-quality steel for enhanced structural strength and long-lasting heavy-duty use.

Lightweight Handle: Premium zinc alloy handle offers a simple, lightweight, and sturdy grip, preventing corrosion and handle snapping under tension.

Smooth Operation: Center-mounted push mechanism ensures easy, stable, and convenient dispensing control.

Easy Cartridge Loading: Half-round open cradle frame allows for quick cartridge insertion, replacement, and clean-up.

Product Specifications

Product No.	Size	Box/Ctn(pcs)	Gross/Net Weight(kg)	Ctn Size(cm)
BK-407002	Half-Round	1/24	18/17	48×27×30

Application

Door & Window Installation: Sealing gaps between window frames, door frames, and surrounding walls.

Kitchen & Bathroom Caulking: Waterproof sealing around bathtubs, sinks, toilets, showers, and kitchen countertops.

General Construction & Glazing: Caulking expansion joints, glass curtain walls, and roof flashing.

Home DIY & Repairs: General filling and sealing tasks around the house.

Why Choose Us

Zinc Alloy vs. Plastic/Iron: Our premium zinc alloy handle offers superior stress resistance compared to plastic handles and lighter weight than cast iron.

Smooth Center-Push System: Minimizes rod binding, allowing continuous, controllable glue flow.

Rigorous Factory Quality Control: Every unit is stress-tested to ensure reliable performance on job sites.

Competitive Direct Wholesale: Factory-direct supply for maximum profit margins and guaranteed lead times.

OEM & ODM Services

We support full OEM & ODM partnership options for hardware distributors and private brands:

Custom Color Powder Coating: Customize the steel frame color (Red, Orange, Blue, Yellow, Black, etc.).

Custom Branding: Laser etch or silk-screen print your logo on the steel barrel or handle.

Custom Packaging: Hanging color cards, barcode labels, printed polybags, or custom-designed shipping cartons.

FAQ

Q1: What cartridge sizes are compatible with this half-round caulking gun?

A: It is designed to fit standard 9" to 10" (approx. 300ml / 10.3 oz) sealant and silicone cartridges.

Q2: What is the benefit of the zinc alloy handle over a traditional iron handle?

A: Zinc alloy is significantly lighter than iron (reducing fatigue during long work sessions) while being impervious to rust and much stronger than plastic handles.

Q3: Does the center-mounted push mechanism prevent rod slippage?

A: Yes! The center-mounted design ensures the push rod aligns perfectly with the center of the cartridge piston, delivering straight, even pressure and preventing binding or slipping.

Q4: What is the Minimum Order Quantity (MOQ) for custom OEM orders?

A: Our standard MOQ for OEM customized powder coating colors and branded packaging is 1,200 pcs (50 master cartons).

Q5: Can I request samples before placing a bulk order?

A: Absolutely! We welcome sample requests for quality and thrust testing. Please contact our sales representatives to arrange samples.

Related tags：