AS 4586 P4 Outdoor
Outdoor balconies and terraces should meet P4 slip resistance. Weather exposure means periodic re-testing is recommended.
Anti-Slip Coating for Balconies
Strata Managers and Owners: Would Your Balconies Grip After Rain?
A balcony is a wet outdoor floor at height. Rain, morning dew and algae turn tiles and timber slippery exactly where a fall is most dangerous. Stellmann's coating is CSIRO-tested and certified to AS 4586 P4.
Free product match by surface · No obligation · We never share your information
AS 4586
Independently slip-tested, wet barefoot & wet pendulum
Up to 12 hours
Applied in a day, cured and walk-ready (12 hours to cure after applying)
No acid
No etching or grinding: the surface remains intact
Wet barefoot rated
Tested to AS 4586 at the time of treatment
Reviewed & Trusted
What is AS 4586?
AS 4586 is the Australian Standard slip test: the surface is tested wet and given a P rating from P0 to P5, and the higher the number, the more slip resistance it has.
Why Balconies Are a High-Risk Slip Zone
Balconies Collect Water And Lose Grip Fast
Glazed outdoor tiles, painted concrete and weathered timber are all slippery when wet, and UV exposure degrades cheap coatings within a season or two.
Owners Corporation
An apartment resident slips on rain-wet balcony tiles during a storm. The owners corporation now needs documented slip resistance on every common-property balcony.
Hotels
A hotel wants penthouse terraces treated before summer without changing the floor guests pay for.
Family Homes
A homeowner’s timber balcony grows algae every winter and turns into a skating rink.
Developers
A developer needs an outdoor P4 finish on new balconies without a product that voids the waterproofing warranty.
Every one of these is avoidable. Stellmann's coating reduces the slip risk and documents it, while keeping the look of the balcony you already have.
How professional treatment works
Slip Safety Is A Process: Not A One-Time Fix
Clean, low-odour, and built around your schedule. Evenings, weekends or staged sections, so the balcony's barely out of action.
1
Profile
Call or send an enquiry. We assess the balcony first: surface, exposure and drainage. Then we match the right Stellmann product, with P4 as the target rating. On-site assessment and slip testing can be arranged for strata and commercial projects.
2
Treat
Certified installers apply the coating over the existing finish. No acid, no etching, no grinding, and no disturbance to the membrane below the surface. Balconies are cured and walk-ready in up to 12 hours.
3
Verify
Treated areas are certified to AS 4586 P4 at the time of treatment and testing, backed by the FEEL-THE-GRIP GUARANTEE* on professional jobs (terms and conditions apply).
4
Maintain
Maintenance guide plus a re-test schedule, so common-property records stay current for the strata committee.
MULTI-SURFACE COMPATIBLE
Surfaces We Treat on Balconies
Balconies mix materials, and each one slips differently. Stellmann's coating is tested and rated across all the common ones.
Tiles
Ceramic & porcelain balcony tiles and pavers, including outdoor grades.
Concrete
Exposed aggregate, plain and polished concrete balcony floors.
Timber
Hardwood and composite timber balcony decking boards.
Natural Stone
Sandstone, bluestone, travertine and slate balcony paving.
➝
Not sure what your balcony is made of? Our technicians identify the surface during the free assessment and match the right treatment.
WHY FAMILIES TRUST STELLMANN
Proven Where a Slip Costs the Most
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37 reviews
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285 reviews
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Why it works for balconies
Safer Floors, Without The Trade-Offs
P4 outdoor rating
The AS 4586 class outdoor balconies need, documented per balcony.
UV-resistant
Formulated for Australian sun, so it does not yellow, chalk or lose grip after one summer.
Non-invasive application
Applied over the finished surface. No stripping, no re-tiling, no interference with the waterproofing beneath.
Nearly Invisible
The balcony looks almost the same, it just grips when wet.
Strata-friendly paperwork
A P-rating certificate per treated area for the owners corporation’s records.
Balcony Compliance at a Glance
Compliance is documented at the time of treatment and testing. We recommend periodic re-testing to keep records current.
Waterproofing Compatibility
Balcony treatments must not damage or void the waterproofing beneath the surface. Stellmann is applied over the finished surface without etching or grinding.
Strata Common Property Duty
Common-property balconies and shared terraces are the owners corporation’s responsibility. Documented slip resistance is the defensible position after an incident.
UV Performance
Australian UV degrades many coatings quickly. UV-resistant formulation keeps the rating meaningful between re-tests.
Recommended Products for Balconies
One Certified System. Every Wet-Area Job Covered
Stellmann Non-Slip Clear Pro is a nearly invisible coating that lifts slip resistance without having to change the floors. Matched to the CSIRO AS 4586 rating each room needs, from family bathrooms to public ramps.
Success Stories
Northcote Eco Village: Residential Shared-Space Coating
Northcote Place is a newly developed sustainable village in Melbourne. The houses use renewable energy and achieve an impressive NatHERS rating of 8 stars. Besides excellent insulation, the houses incorporate sustainable materials. Stellmann Aqualine PU PRO, our VOC-free, slip-free concrete floor coating has been used to upgrade the garages.
Reviewed & Trusted
We Don’t Just Say It - We Certify It
Trusted by leading brands, builders & care facilities
Questions, answered
Balcony Coating FAQs
Will the coating affect my balcony’s waterproofing?
The coating is applied over the finished surface without acid, etching or grinding, so the membrane beneath is not disturbed. If your balcony has a known waterproofing issue, fix that first; a coating is not a waterproofing repair.
Will my balcony look different?
No. The finish is nearly invisible. Tiles, stone and timber keep their colour and texture, they just grip when wet.
What P-rating does a balcony need?
P4 is the AS 4586 class for outdoor areas like balconies. We confirm the right rating for your balcony as part of your free product match.
How does it cope with sun and weather?
The formulation is UV-resistant and made for outdoor exposure. Like any outdoor surface it should be cleaned and re-tested periodically, and every job includes a maintenance guide.
Can a whole apartment block be done?
Yes. Strata jobs are staged balcony by balcony, and each treated area gets its own P-rating certificate for the owners corporation’s records.
Does the coating change how a gloss tile looks?
On a gloss tile the sheen can change slightly toward satin; that is the only visible difference most customers notice.
Make Every Balcony Grip Before the Next Storm
Falls are Australia’s leading cause of injury hospitalisation (AIHW, Injury in Australia 2024-25). A wet balcony at height is not the place to find out your tiles do not grip. Call 1300 987 095 or send an enquiry for a free product match by surface.
Free product match by surface · No obligation · We never share your information
Book your free slip test
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