Description
The Procat skeleton gun is a light, simple caulking gun, particularly suited to dispensing standard-size 310 ml cartridges. This skeleton-type gun has an open, lightweight design, which makes it easy to use and quick to load.
The tool has an ergonomic handle and a finger trigger that allow precise, even feeding of material. The push mechanism works mechanically and is suitable for dispensing the most common silicones, adhesives, acrylics and polyurethanes.
The metal frame offers a good balance between light weight and structural rigidity. The skeleton design also allows quick cleaning and inspection, as the cartridge is not hidden as in closed models.
Intended use:
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Silicone sealing and sealing work: Excellent for sealing joints in bathrooms, kitchens and windows, for example. Ease of use and precise feed make the work controlled and neat.
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Construction and installation work: Can be used to dispense adhesives and construction sealants in various installations, such as fixing plasterboard, trims or insulation.
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Car repair shops and technical maintenance: Also excellent in technical maintenance where sealants or adhesives are used, e.g. when fitting seals or plastic parts.
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DIY and renovation projects: Also suitable for home users in renovation and repair projects that need a reliable, simple caulking gun.
Features:
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Compatibility: 310 ml standard cartridges: compatible with most silicones and adhesives on the market.
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Design: Open “skeleton model”: light, quick to load and easy to clean.
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Material: Metal frame: durable, non-twisting construction despite its light weight.
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Handle and trigger: Ergonomic grip: reduces strain during longer work sessions.
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Mechanism: Mechanical push rod: steady, even dispensing.
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Suitability: Sealing, bonding and jointing work
Procat skeleton gun instructions for use:
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Open the back end of the gun and pull the push rod back.
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Place a 310 ml cartridge in the frame and push the push rod back firmly against the base of the cartridge.
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Cut the tip of the cartridge nozzle to the required size and fit the cap supplied (if any).
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Use the trigger to dispense the material.
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After use, release the push pressure with the separate release lever.
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Remove the cartridge, clean the frame and store it in a dry place.
How to choose the right caulking gun:
Choosing a caulking gun depends on several factors, such as the application, the compound used and working comfort. Several different models are available on the market, from skeleton models to reinforced industrial-grade guns, and choosing the right type improves the accuracy, speed and ergonomics of the work significantly.
Below are the key points to consider when choosing a gun:
1. Application and intended use
Choose the gun according to where and how it will be used:
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Light and occasional use:
If you need a gun for occasional sealing or repair jobs at home, for example, a light skeleton-type model is often sufficient. It is inexpensive, easy to use and light to carry. -
Professional use and repetitive work:
For heavier daily use, such as on building sites or by installers, choose a sturdier model with better dispensing force and a more ergonomic handle design. Features such as a drip lock or interchangeable mechanisms can also be useful.
2. Compatibility with the cartridges used
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Most common size:
310 ml cartridges are the standard size and almost all guns on the market support them. However, check the gun’s compatibility before buying. -
Special compounds:
Some compounds, such as 2-component adhesives or very stiff polyurethanes, require special guns that withstand higher dispensing force or have two parallel cartridge holders.
3. Type of dispensing mechanism
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Basic mechanical:
A simple rod + trigger mechanism works well with traditional silicones and acrylic compounds. -
Rack and gear mechanism (e.g. 12:1 or 18:1):
A geared mechanism with a ratio increases dispensing force and reduces strain on the user. Recommended for denser compounds or compounds used in the cold. -
Drip lock (anti-drip):
Some models have a feature that automatically releases the pressure after the trigger is used, which stops the compound running out of the cartridge during breaks.
4. Design and weight
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Skeleton model:
Open design, light and easy to clean. Suitable for light and medium use. -
Closed body:
Gives the cartridge extra protection but can be heavier and harder to clean. -
Aluminium vs. steel:
An aluminium frame is light and rustproof. Steel is more durable but heavier and needs dry storage.
5. Ergonomics and comfort
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Handle design:
An ergonomic handle makes use easier, especially when working for long periods. -
Trigger response:
A smooth trigger allows controlled, even feeding of the compound. -
Handling:
A compact gun is easier to handle in confined spaces, while longer models offer better leverage.
6. Value for money
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An inexpensive basic gun can be sufficient if use is infrequent.
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Mid-range guns offer a good combination of durability, features and comfort.
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Professional-grade models are an investment for repeated use, where the gun is an important part of the daily toolkit.
| Use | Recommended model | Mechanism | Features |
|---|---|---|---|
| Light home use | Skeleton | Basic mechanical | Easy to use, light |
| Professional use | Closed, reinforced body | Gear mechanism (12:1+) | Drip lock, ergonomic |
| Heavy compounds | Heavy-duty geared | 18:1 or more | High dispensing force |
Why choose the Procat skeleton gun:
The Procat skeleton gun combines simplicity, functionality and durability in a compact package. Its light construction, quick loading and compatibility with common silicone cartridges make it a reliable tool for daily use, for professionals and renovation projects alike.
Warnings:
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Do not use with a broken or deformed cartridge.
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Do not exceed the mechanical capacity of the gun.
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Clean after use to prevent drying.
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Keep out of reach of children.
Frequently asked questions (FAQ):
Is this suitable for all silicone cartridges?
Yes, compatible with all standard-size 310 ml cartridges.
Can this be used for polyurethane or adhesive?
Yes, as long as the compound is in a standard cartridge and does not require special force.
Is this also good for occasional use at home?
Yes, it is light and easy to use, and excellent for occasional use too.

