best sealant gun uk

Best Sealant Gun in the UK (2022 Reviews & Buying Guide)

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It might seem like a minor detail, but your choice of sealant gun can seriously affect the finish of your DIY job. Buy the wrong gun, and you’ll struggle to apply neat silicone lines or apply too much caulk because the trigger isn’t sensitive or accurate enough.

If you want to cut to the chase and buy the best sealant gun in the UK, let us steer you towards WORKPRO’s Professional Sealant Gun. 

The WORKPRO might be the heaviest of the five products we’ve recently tested, with the smallest cartridge capacity, but its features contribute to a compelling overall package. As someone who’s spent many hours kneeling beside tiles and sanitary ware with a gun in hand, that’s high praise.

In a Hurry? Here’s our Top Pick for the Best Sealant Gun in 2022:

WORKPRO Professional Sealant Gun 10OZ(295ml), Silicone Gun Adjustable Thrust Ratio 9:1 & 18:1, Caulking Gun with Comfort Grip for Standard Caulk Tubes
  • 【Switch at Will of High & Low Flow Rates】WORKPRO caulking gun allows for switching between high and low flow rates. Pull the trigger handle downwards, the high of setting thrust ratio 18:1 for use with adhesive materials. Push the trigger handle upwards, the low setting of thrust ratio 9:1 for use with acrylic materials.
  • 【Drip Controllable】The hand caulk gun can switch from drip to no-drip for dispensing desired application. Press down on the front of the red button, this process stops the caulk from flowing and allows for clean, smooth transitions and less mess to clean up. Press down towards the rear of the red button, this mode keeps constant pressure on the tube for providing smoother action and quicker working.
  • 【Allows for Effortless Maneuvering in Tight Areas】The sealant cartridge gun with a rotating barrel can effortlessly reach hard-to-reach places. A rotating shaft is designed to allow easy maneuvering in tight areas. WORKPRO's half-barrel frame caulking gun is ideal for standard size 10oz cartridges.
  • 【Smooth Roud Rod for Less Force Required】Smooth plungers allow more control and more thrust to push the caulk. The smooth round rod with spring-loaded thumb release offers a quieter and less effortful project than a ratchet rod. The puncture tool can also be used to clear the spout of the tube if it becomes clogged.
  • 【Comfortable Grip】The trigger with a cushion grip improves grip comfort and prevents your fingers from hurting when you are caulking. The handle and trigger of the cartridge gun are made of ergonomics plastic, which is comfortable for a long time using.

The Best Sealant Gun in the UK – The Top 5 in 2022

These are our picks as the best sealant gun UK buyers can choose from, starting with a product that’s all things to all (trades) people…


1. WORKPRO Professional Sealant Gun

WORKPRO Professional Sealant Gun 10OZ(295ml), Silicone Gun Adjustable Thrust Ratio 9:1 & 18:1, Caulking Gun with Comfort Grip for Standard Caulk Tubes
  • 【Switch at Will of High & Low Flow Rates】WORKPRO caulking gun allows for switching between high and low flow rates. Pull the trigger handle downwards, the high of setting thrust ratio 18:1 for use with adhesive materials. Push the trigger handle upwards, the low setting of thrust ratio 9:1 for use with acrylic materials.
  • 【Drip Controllable】The hand caulk gun can switch from drip to no-drip for dispensing desired application. Press down on the front of the red button, this process stops the caulk from flowing and allows for clean, smooth transitions and less mess to clean up. Press down towards the rear of the red button, this mode keeps constant pressure on the tube for providing smoother action and quicker working.
  • 【Allows for Effortless Maneuvering in Tight Areas】The sealant cartridge gun with a rotating barrel can effortlessly reach hard-to-reach places. A rotating shaft is designed to allow easy maneuvering in tight areas. WORKPRO's half-barrel frame caulking gun is ideal for standard size 10oz cartridges.
  • 【Smooth Roud Rod for Less Force Required】Smooth plungers allow more control and more thrust to push the caulk. The smooth round rod with spring-loaded thumb release offers a quieter and less effortful project than a ratchet rod. The puncture tool can also be used to clear the spout of the tube if it becomes clogged.
  • 【Comfortable Grip】The trigger with a cushion grip improves grip comfort and prevents your fingers from hurting when you are caulking. The handle and trigger of the cartridge gun are made of ergonomics plastic, which is comfortable for a long time using.

With relatively slim margins between our shortlisted contenders, we eventually settled on WORKPRO’s Professional Sealant Gun as our first choice.

For one thing, it’s the most attractive product, with its red top latch differentiating between clean and efficient dispensation. The royal blue barrel matches the soft plastic handgrip, while the spring-loaded thumb release is smoother than a ratchet rod alternative.

We found the rotating shaft provided a slick operation during testing, though the high/low thrust ratio button could be easier to switch, especially with dirty hands.

Even so, regular users of the WORKPRO can’t speak highly enough about it, which is reassuring. It’s just a shame it’s relatively heavy, tipping the scales at over a kilogram despite only taking 295ml cartridges.

ProsCons
Attractive and tactile.The thrust ratio button is awkward to use.
It offers two ratios and a choice of dispensations.It can’t accommodate 400ml cartridges.
Soft spring-loaded action. 

2. OX Tools OX-P044440 Pro

Sale
OX Tools OX-P044440 Pro Heavy Duty Sealant Gun, Multi-Colour, 400 ml
  • HEAVY DUTY SEALANT GUN: The OX Pro Chalking Gun is a professional tool built to perform demanding tasks with great power and durability.
  • HIGH THRUST TRIGGER ACTION: The OX Pro Sealant Gun offers a high thrust trigger action along with an adjustable screw, thus allowing one to apply great pressure with minimum effort.
  • COMFORTABLE DIPPED HANDLES: The OX Pro Chalking Gun is engineered with dipped handles, giving it a non-slip grip, and adding both comfort and strength while working.
  • POWERFUL AND DURABLE: The Chalking Gun is made with high-quality materials and tested for optimum performance, to ensure your work onsite is effective and efficient.
  • RIVETED CRADLE STYLE FRAME: The Riveted and Reinforced Cradle Style Frame of the OX Pro Chalking Gun ensures to provide the essential strength and flexibility.

We thought long and hard about whether to make OX’s sturdy sealant gun our eventual test winner before deciding WORKPRO just pipped it. 

The cyan O-ring and handle grips are a bit dayglo for some tastes, but this is still a well-assembled product. It’s only its high price that counts against it.

While it lacks WORKPRO’s high and low ratio option, OX has thoughtfully provided an adjustable screw, which allows you to adjust output pressure as required. It’s a more fiddly – yet also more nuanced – take on the same principle, though you might have to have a couple of trial sprays before settling on an optimal pressure.

Furthermore, its dipped, non-slip handles are comfortable for ongoing use, while the riveted and reinforced frame is a strong performer.

ProsCons
Lightweight.The colours are a bit garish.
Adjustable trigger pressure.Trigger adjustment requires practice.
Feels durable and robust. 

3. Everbuild Power Pro Heavy Duty Sealant / Adhesive Cartridge Applicator Gun

Everbuild Power Pro Heavy Duty Sealant / Adhesive Cartridge Applicator Gun
  • Smooth action extra pull trigger for easier use than most standard guns
  • Reinforced push ring for increased strength and durability
  • Soft grip handle for comfort, hook end for simple storage and a clip hole for safety when working at height
  • Rotating swivel action barrel to enable easier access to difficult to reach areas such as behind taps and pipes
  • Suitable for use with cartridges up to 400 ml

Only colour distinguishes Everbrite’s product from OX’s at first glance. Some people prefer the sober black colour palette with undramatic yellow lettering down the rotating barrel, while the clip hole and hanging hook are identical. Like the OX, it takes 310mm or 400mm cartridges.

This gun is easy to use all day due to its lightweight construction. Everbuild has also endeavoured to give the trigger a smooth action, which further simplifies ongoing grouting or sealing jobs. 

There are some concerns about rusting, which is particularly worrying considering this gun has the highest RRP of any product we tested. However, it’s still highly praised for adhesive dispensation and ease of use.

ProsCons
Simple to use.More expensive than it should be.
Takes two cartridge sizes.Lacks any ratio adjustment.
Lightweight.
Smooth trigger operation. 

4. Amazon Basics Heavy Duty Sealant Caulking Gun

Amazon Basics Heavy Duty Sealant Caulking Gun - 310 ml - 12:1 Thrust Ratio, Aluminium handle with plastic support grip
  • Heavy duty sealant caulking gun accommodates 310 ml cartridges; thrust ratio of 12:1
  • Made of durable powder-coated metal; cartridges can rotate as needed thanks to the gun’s revolving steel frame
  • Aluminium handle with plastic support grip and aluminium trigger; ergonomic rubber-coated handles allow for comfortable all-day use
  • Silencing mechanism prevents squeaky noise when squeezing the trigger; drip-free mechanism retracts the pushing rod, which stops the flow of caulk
  • Measures 33.2 x 18.5 x 5.84 cm

Amazon has been rolling out an array of cut-price DIY tools, and in the main, they’re perfectly adequate. 

Though the powder-coated blue barrel has a certain appeal, this gun is built down to a budget, with exposed screws and cheap plastics. The Amazon Basics logo won’t impress every customer, however.

The first thing to note about the Basics Heavy Duty gun is that it only takes 310ml cartridges.

The second thing to note is its unusual 12:1 thrust ratio, though this should be adequate for all materials. 

The aluminium handle and trigger are joined by a plastic trigger, while a drip-free mechanism should prevent caulk from escaping. The anti-squeak trigger also deserves praise.  

ProsCons
Unusual anti-squeak trigger.Plastics feel cheap.
Has drip-free cut-off.Amazon Basics logo is a bit off-putting.
Good value. 

5. ProDec 400ml Extra Strong Skeleton Caulking Gun

ProDec 400ml Extra Strong Skeleton Caulking Gun for Applying Sealants and Caulk
  • Trade quality caulking gun suitable for 400ml and 310ml cartridges plus intermediate sizes
  • Engineered to be stronger than standard skeleton guns featuring robust powder coated steel construction for heavy duty use
  • Ideal for applying silicone sealants and caulk including high viscosity materials
  • Finger moulded trigger smoothly drives plunger for continuous flow during application and reduced hand fatigue
  • Release clip to stop flow when required

You can tell a great deal from ProDec’s description of this product as a “skeleton” caulking gun. I.e. it has none of the barrel sophistication of the other four products on test. 

A visible plunger stands within a thin powder-coated steel frame, with its sole screw exposed. At least the skeleton itself is painted in a fetching shade of red, and there’s no doubting this product will last a while.

Furthermore, this gun accommodates 310ml and 400ml cartridges alike, with a release clip to stop the flow whenever required. It might not offer any fancy features, but it’s still hard to argue with at this price.

ProsCons
Great value.Lacks adjustability.
Attractive red powder coating.Not as sophisticated as other products we tested.
It has an anti-drip mechanism. 

Sealant Gun Buying Guide

sealant gun on the floor

Take one look at a sealant gun, and you will see what you’re getting for your money. In truth, there’s usually not much to see because these are among the cheapest products you’ll ever throw into your tool bag. 

These deceptively simple designs may last for many years with the proper care and maintenance. They often incorporate one or two welcome features, as well…

Our favourite WORKPRO product offers a drip control mode according to whether you want constant pressure on the tube or not. 

All except the Amazon Basics model provide a hanging hook for space-efficient wall storage, which is a concept you can read more about in this article by FlowWall. 

The WORKPRO, OX and Everbuild all have clip holes for safe working at heights, meaning you can’t drop your gun on an unsuspecting colleague below.

If you want to know more about safely using a silicone gun, the video below covers all the basics:

YouTube player

Under Pressure

worker applying sealant using sealant gun

It’s sometimes possible to adjust the rate at which pressure from a sealant gun is applied when you squeeze the trigger. 

Our shortlisted WORKPRO model includes 9:1 and 18:1 thrust ratios from the same trigger, while the OX has an adjustable screw that lets you apply more or less pressure depending on what’s required. Note that this feature is not exclusive to pricier products – our most expensive contender (the Everbuild) doesn’t offer this functionality.

Higher thrust is generally required for denser materials like polyurethane and construction adhesive. 

Lower thrust is required for latex caulk, while the ubiquitous silicon sealant should dispense freely at either ratio. That’s handy if you’ve got a specific job, like replacing bathroom sealant.

Pro Tip: Adjustable pressure may not be necessary for all (or even many) sealant jobs, so consider whether it’s beneficial before looking for a gun that offers this functionality. For instance, if you’re laying vinyl flooring, any speed of distribution ought to be suitable.


Final Thoughts

If your only requirement is a bit of ad-hoc silicon sealing once a year, the ProDec, which props up our table, might be all you need. It comes fifth only because it has fewer features than its rivals, but its superb value is a significant redeeming aspect. 

By contrast, the Amazon Basics is trying to straddle two worlds – a simple skeleton gun and a pro tool. It doesn’t do either perfectly, but it’s still good value. It has one or two neat touches like an anti-squeak trigger and a drip-free cut-off, which help with day-to-day practicality.

Splitting our three more expensive contenders was harder. In the end, WORKPRO’s product felt better – a little more tactile, a little more well-engineered, a little more robust. The ability to flick a switch between ratios is far better than OX’s take-a-guess screw adjustment, while none of our other contenders offered anything comparable. 

We also liked WORKPRO’s anti-drip functionality, which is something the cut-price ProDec also offers.

The Everbuild is a solid product in its own right, with the ability to swallow up to 400ml cartridges and a safety clip hole. It’s just unfortunate that it’s relatively expensive and lacks one or two of the features found on cheaper models like adjustable ratios or a drip cut-off


Best Sealant Gun UK – 2022 Comparison Table

ModelWeightAdjustable ratios?SizesClip hole?PriceRating
WORKPRO Professional Sealant Gun1.1kgYes295mlYes££9
OX Tools OX-P044440 Pro454gYes310/400mlYes£££8
Everbuild Power Pro790gNo310/400mlYes£££8
Amazon Basics DS-CGAMZ004644gNo310mmNo£7
ProDec  MG11ES470gNo310/400mlNo£7