Concrete floors can quickly become slippery — especially in garages, driveways, workshops and warehouses, where water, dust, oil and regular traffic are part of everyday life. In high-traffic environments this isn’t just inconvenient, it’s a safety risk.
The good news is, there are proven ways to create a slip-resistant surface. If you’re searching for how to make concrete non-slip, how to stop a slippery floor, or a reliable slippery floor solution, the key is selecting the right non-slip sealer or anti-slip coating for your level of use.
Why Concrete Floors Become Slippery
Common causes of slippery concrete include:
- Smooth finishes
- Dust, dirt or fine particles
- Wet surfaces (water, oil or grease contamination)
- Worn or unsuitable coatings
In high-use areas, these issues are amplified — increasing the risk of slips, especially in wet areas or outdoor environments.
Where Non-Slip Is Most Important
Non-slip coatings are critical in areas where safety and durability matter:
- Garage floors
- Driveways and pavers
- Carparks
- Workshops
- Warehouses
- Commercial and retail spaces
- Stairs and ramps
- Outdoor and wet areas
These are high-risk environments where a proper anti-slip treatment is essential.
What is a Non-Slip Sealer?
A non-slip sealer (also known as an anti-slip sealer or slip-resistant sealer) is designed to improve surface grip and reduce slip hazards on concrete, stone, and other substrates. Unlike generic floor sealers, a purpose-built non-slip sealer increases traction and reduces slip hazards — helping improve safety in both residential and commercial environments.
Surface treatments like acid etching, can improve grip initially but may wear down quickly — especially in high-traffic or exposed areas. For demanding environments, a properly formulated non-slip sealer provides a more durable and reliable result, maintaining slip resistance over time rather than losing effectiveness with use.
Understanding Slip Ratings (AS 4586 Explained)
In Australia, slip resistance is measured under AS 4586, the standard used to classify how safe a surface is underfoot.
There are two main rating systems:
- P ratings (wet pendulum test): Used for pedestrian areas. Ratings range from P1 (very low slip resistance) to P5 (very high). As a general guide, P3 suits many residential and light commercial areas, while P4 is commonly specified for wet or high-traffic environments where a higher level of slip resistance is required.
- R ratings (ramp test): Typically used in commercial and industrial settings. These range from R9 (low) to R13 (very high) and are often specified for areas with steeper surfaces/increased slip risk.
Choosing a system aligned with recognised slip resistance ratings helps ensure safety, compliance and suitability for the environment.
It’s important to note that slip performance isn’t just about the non-slip surface treatment — it’s influenced by surface preparation, application, and site conditions. That’s why selecting a system designed for the level of use is critical.
Best Solution for High-Traffic Areas
For areas exposed to frequent use, vehicles, moisture, contaminants or high safety demands, a heavy-duty non-slip penetrating sealer delivers the most consistent and long-lasting results.
Unlike film forming sealers that only sit on the surface, a penetrating sealer bonds into the substrate, and improves:
- Adhesion
- Wear resistance
- Long-term slip protection
- Surface durability
Crommelin Heavy Duty Non-Slip Floor Sealer is a commercial-grade non-slip coating solution designed for these environments.
It delivers:
- A durable, non-slip finish
- Strong adhesion to substrates
- Consistent slip resistance under heavy foot and vehicle traffic
- Reliable performance in indoor and outdoor environments
- UV resistance for Australian conditions
- P4 slip resistance aligned with recognised AS 4586 rating systems
Choosing the Right Finish
Crommelin Heavy Duty Non-Slip Floor Sealer is available in two finishes:
- Clear Wet Look: Ideal for residential or decorative surfaces where you want to maintain/enhance the existing surface appearance. Works well as a clear non-slip sealer or invisible anti-slip treatment.
- Concrete Grey: Better suited to commercial or industrial areas where a consistent finish is preferred. Ideal for warehouses, workshops and high-traffic environments.
Common Mistakes to Avoid
- Choosing a coating that isn’t designed for heavy traffic
- Using temporary additives instead of a long-term solution
- Ignoring surface preparation
- Applying coatings to contaminated or dusty surfaces
- Assuming all slip-resistant coatings perform the same
Do You Need a Heavy-Duty Solution?
Not every project requires a heavy-duty system.
For lower-traffic areas, a lighter-duty option such as Crommelin DiamondTough Paving and Concrete Clear Sealer Natural may be suitable.
However, if you’re dealing with:
- Frequent foot traffic/high use areas
- Outdoor exposure
- Wet, oily, or contaminated surfaces
- Ramps, slopes or areas with increased slip risk
- Areas where safety underfoot is critical
A heavy-duty, long-lasting non-slip sealer is the safer and more reliable choice.
For environments exposed to constant vehicular traffic — such as car parks, shopping centres, and commercial loading areas — a more robust system may be required.
In these situations, a Gecko non-slip system provides enhanced durability and slip resistance, designed to withstand continuous vehicle movement, turning forces, and high wear conditions.
Making surfaces non-slip isn’t complicated — but choosing the right system is critical.
Crommelin Heavy Duty Non-Slip Floor Sealer is designed for exactly these environments — delivering long-lasting slip resistance that holds up under real use.
Available from Bunnings in the Building Supplies department, and other leading retailers.
