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7 Best Cordless Mastic Gun [UK] (2025)

1

Best Cordless Mastic Gun
Premium Pick
SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing
SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing
SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing
SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing
SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing

9.7

score start

SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing

checkmarkColor: Light Blue
checkmarkDimensions: 9.84 x 5.12 x 4.72 Inches
checkmarkWeight: 4.54 Pounds
checkmarkSize: 21V
checkmarkUnit Count: 1
Check Price
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Picked by 397 people today

2

Seesii Electric Caulking Gun for 29OZ/800ML and 20OZ/600ML, 21V Cordless Caulk Gun with 1X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, Battery Powered Caulking Gun for Filling, Sealing
Seesii Electric Caulking Gun for 29OZ/800ML and 20OZ/600ML, 21V Cordless Caulk Gun with 1X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, Battery Powered Caulking Gun for Filling, Sealing
Seesii Electric Caulking Gun for 29OZ/800ML and 20OZ/600ML, 21V Cordless Caulk Gun with 1X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, Battery Powered Caulking Gun for Filling, Sealing
Seesii Electric Caulking Gun for 29OZ/800ML and 20OZ/600ML, 21V Cordless Caulk Gun with 1X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, Battery Powered Caulking Gun for Filling, Sealing
Seesii Electric Caulking Gun for 29OZ/800ML and 20OZ/600ML, 21V Cordless Caulk Gun with 1X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, Battery Powered Caulking Gun for Filling, Sealing

9.5

score start

Seesii Electric Caulking Gun for 29OZ/800ML and 20OZ/600ML, 21V Cordless Caulk Gun with 1X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, Battery Powered Caulking Gun for Filling, Sealing

checkmarkSize: 29 oz
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3

Popular
Seesii Electric Caulking Gun, 10oz Cordless Caulking Gun with 2X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, 12V Battery Powered Caulk Gun for Filling, Sealing
Seesii Electric Caulking Gun, 10oz Cordless Caulking Gun with 2X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, 12V Battery Powered Caulk Gun for Filling, Sealing
Seesii Electric Caulking Gun, 10oz Cordless Caulking Gun with 2X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, 12V Battery Powered Caulk Gun for Filling, Sealing
Seesii Electric Caulking Gun, 10oz Cordless Caulking Gun with 2X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, 12V Battery Powered Caulk Gun for Filling, Sealing
Seesii Electric Caulking Gun, 10oz Cordless Caulking Gun with 2X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, 12V Battery Powered Caulk Gun for Filling, Sealing

9.5

score start

Seesii Electric Caulking Gun, 10oz Cordless Caulking Gun with 2X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, 12V Battery Powered Caulk Gun for Filling, Sealing

checkmarkSize: 10oz
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9.2

score start

Ryobi RCG18-0 18V ONE+ Cordless Caulking Gun (Bare Tool)

checkmarkColor: Green & Anthracite
checkmarkDimensions: 0.00 x 0.00 x 0.00
checkmarkWeight: 3.57 Pounds

Save 17%

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9.0

score start

Cordless Caulking Guns for Dew@lt 20V Battery with 450lm LED Light and 4 Adjustable Speeds Electric Caulking Adhesive Guns,,10 Oz/300ml for Kitchen Bathroom Window Filling Sealing(Not Battery )

checkmarkColor: Yellow and Black
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8.8

score start

KATSU FIT-BAT Cordless Caulking Gun 18V/21V, Non Drip, 4 Adjustable Speeds, Adhesive Sealant Gun for Automatic Smooth Application, Battery Not Included

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7

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8.6

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Electric Cordless Caulking Gun Compatible with Makita 18-20V Batteries, with LED Light, 4 Adjustable Speeds Silicone Gun for Filling, Sealing, Work for 10oz/300ml Cartridge

checkmarkColor: Red
checkmarkDimensions: 3.30 x 15.70 x 9.10 inches
checkmarkWeight: 0.00
checkmarkUnit Count: 1
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Our Top Choice

Best Cordless Mastic Gun
Premium Pick
SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing
SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing
SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing
SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing
SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing

9.7

score start

SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing

checkmarkColor: Light Blue
checkmarkDimensions: 9.84 x 5.12 x 4.72 Inches
checkmarkWeight: 4.54 Pounds
checkmarkSize: 21V
checkmarkUnit Count: 1
Check Price
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2025 Expert Picks

Finding the perfect product can be challenging. That’s why our team invests countless hours in research, breaking down key insights into clear, side-by-side comparisons. Our top pick is based on what matters most to our readers, the most popular products in each category, and a data-driven assessment of all available options. We aim to provide you with all the details you need to make the best choice—quickly and confidently.

Compare Features

Premium Pick

SEESII Silicone Sealant Gun with 2-Batteries, 21V Electric Caulking Gun with Built-in LED Light, 4 Adjustable Speeds for Filling and Sealing

image

Seesii

On Amazon

Seesii Electric Caulking Gun for 29OZ/800ML and 20OZ/600ML, 21V Cordless Caulk Gun with 1X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, Battery Powered Caulking Gun for Filling, Sealing

image

Seesii

On Amazon

Popular

Seesii Electric Caulking Gun, 10oz Cordless Caulking Gun with 2X 2000mAh Battery, Stepless Speed, Anti-Drip, Led Light, 12V Battery Powered Caulk Gun for Filling, Sealing

image

Seesii

On Amazon

Ryobi RCG18-0 18V ONE+ Cordless Caulking Gun (Bare Tool)

image

RYOBI

On Amazon

Cordless Caulking Guns for Dew@lt 20V Battery with 450lm LED Light and 4 Adjustable Speeds Electric Caulking Adhesive Guns,,10 Oz/300ml for Kitchen Bathroom Window Filling Sealing(Not Battery )

image

Chengsuwei

On Amazon

KATSU FIT-BAT Cordless Caulking Gun 18V/21V, Non Drip, 4 Adjustable Speeds, Adhesive Sealant Gun for Automatic Smooth Application, Battery Not Included

image

KATSU Tools

On Amazon

Electric Cordless Caulking Gun Compatible with Makita 18-20V Batteries, with LED Light, 4 Adjustable Speeds Silicone Gun for Filling, Sealing, Work for 10oz/300ml Cartridge

image

VexNook

On Amazon

Deal

---Save 17%---

Color

Light Blue--Green & AnthraciteYellow and Black-Red

Dimensions

9.84 x 5.12 x 4.72 Inches--0.00 x 0.00 x 0.00 --3.30 x 15.70 x 9.10 inches

Weight

4.54 Pounds--3.57 Pounds--0.00

Size

21V29 oz10oz----

Unit Count

1-----1

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We leverage expert analysis and advanced technology to evaluate thousands of products. Our unbiased reviews are designed to save you time and ensure you find the best options with confidence.