Resin Bound Floor Slip Resistance Test

Introduction to Resin Bound Anti-slip

The Resin Mill understands your customers' need for an attractive, yet safe resin bound driveway or surface, especially concerning slip resistance. This is why FloorSlip* was instructed to independently assess the anti-slip properties of ResinBound UVR Pro when used as the binder for a resin bound surface.

The Pendulum method was used under the United Kingdom Slip Resistance Group (UKSRG) guidelines for testing floors to ascertain the slip resistance to BS EN 14231**.

The tests show that The Resin Mill’s ResinBound UVR Pro resin-bound system has excellent anti-slip properties, with the slip resistance well above current requirements.

What is a Pendulum Slip Test?

The Pendulum Slip Test is the Health and Safety Executive’s (HSE) original method for measuring slip resistance in the UK, assessing the Dynamic Coefficient of Friction (CoF) of floor surfaces.

It is recognised under British and European standards and recommended by the UK Slip Resistance Group as the preferred in-situ test method. As a portable and reliable system, it allows testing at specific locations, including the exact site of a slip accident, with minimal disruption to operations.

When combined with a surface roughness (Rz) test, it provides one of the most accurate measures of pedestrian slip resistance available.

How Does the Pendulum Test Work?

The Pendulum Tester simulates a pedestrian heel striking the floor by using a swinging arm with a rubber slider that mimics footwear or bare skin.

When released, the arm swings downward and the slider contacts the surface, slowing in line with the friction provided by the floor. A needle records where the arm stops, giving a Pendulum Test Value (PTV) that indicates slip potential: 36+ is low risk, 25-35 is moderate, and 0-24 is high.

To ensure accuracy, readings are taken in three directions, along, across, and diagonally, helping to identify wear patterns or surface textures that affect slip resistance, with results often used as evidence in court cases to demonstrate duty of care.

Test Objectives

Independent Pendulum tests were conducted to provide an accurate analysis of the slip potential of the flooring. Tests were carried out on resin bound samples made with Resin Bound UVR Pro on its own and with the addition of crushed glass sprinkled on the freshly laid surface, under both dry and wet conditions.

A minimum Pendulum Test Value reading of 36 must be obtained in all conditions to pass the test.

Results

Test 1: Resin Bound UVR Pro in wet conditions: 51

Test 2: Resin Bound UVR Pro in Dry conditions: 62

Test 3: Resin Bound UVR Pro with added crushed glass at approx. 25gsm in wet conditions: 64

Test 4: Resin Bound UVR Pro with added crushed glass at approx. 25gsm in dry conditions: 70

Test 5: Resin Bound UVR Pro with added crushed glass at approx. 100gsm in wet conditions: 74

Test 6: Resin Bound UVR Pro with added crushed glass at approx. 100gsm in dry conditions: 80

Pendulum Slip Test Ratings: Block Paving, Concrete & Resin Bound UVR Pro

When tested using the Pendulum Slip Test, block paving typically achieves results ranging between 34-51 PTV, with an average value of 43. Concrete performs slightly better overall, with scores between 36-55 PTV and an average of 45. Both surfaces, therefore, fall into the “moderate slip potential” category, meaning they provide acceptable slip resistance but can still pose risks depending on wear, contamination, and environmental conditions.

Conclusion

The results from the tests show that ResinBound UVR Pro is more than 40% above the required standards even before crushed glass is added, in both wet and dry conditions.

Adding crushed glass to the freshly laid ResinBound UVR Pro surface can increase the slip resistance to up to double the current requirements.

*Impartial and Independent Floor Testing Company, specialising in ‘Pendulum’ Testing.
**BS EN 14231 is a natural stone test method that determines the slip resistance using the Pendulum tester.

The results were obtained under the test conditions. Results may change depending on conditions. A full report is available on request.