What is Resin Bound Surfacing?
Resin Bound surfacing is a continuous, joint free, permeable material made from rubber granules or aggregate and polyurethane binders. It is mixed and laid on site as a wet-pour product and can be laid in any shape, either on a purpose built base, tarmacadam or concrete. It is available in many colours and styles.
Resin Bound surfaces create aesthetically pleasing driveways and surfaces using a durable and strong layer of high quality UV stable clear resin with the correctly blended aggregates to create an attractive finish suitable for walkways, patios and driveways.
Preparation of The Surface
The preparation of any existing surface is key to a long lasting resin bound surface.
If a new sub base is being installed fixed edgings should be positioned using sharp sand and cement to give a solid mix and help frame the area. Edgings must be proud of the finished sub base by 15-20mm to allow for the resin bound mixture.
The sub base should be made of MOT type1 at a depth of 150mm. This should be rolled down with a vibrating roller until the stone is bound together giving a good solid surface. On top of the MOT type1 you can use either tarmacadam or concrete. It should be dependant on the specific job which is the best, concrete provides the ultimate strength while tarmacadam gives permeability. A minimum depth of 125mm for concrete and 75mm for tarmacadam should be use.
If an existing surface is being used any cracks must be widened into a 'V' shape with a stone saw. The surface must be dry and free of weeds and algae.
The first thing to choose is the colour of resin aggregate, we have a large selection of colours on our Resin Products page. Once you have selected a colour you can then choose between a standard resin or a UV stable resin. Standard resin will suffer from colour fade over time whilst the UV stable resin ensure the finished mixture colour stays that colour.
Once you have decided on your colour and resin type Contact Us and we can guide you through how much you will require and deal with the ordering and delivery for you.
Mixing & Laying the Resin
To mix the resin add part B into the Part A in a mixing bucket. If you are using UV stable resin you also add one cap full of the catalyst which comes with the kit and mix it all together.
The aggregate is put in a mixer and allowed to mix dry to remove any dust. The resin mix is then added and mixed together until all the stones are covered in the resin. To create a really strong mix 2kg of kiln dry sand is added and mixed in.
It is important to ensure each mix is mixed for the same length of time to avoid colour change. Once the mix is complete it is poured onto the surface being covered.
Once the mixture is poured a spazzel or rake is used to spread the material out so that it is easier to trowel. Working from the top towards the exit a trowel wiped with white spirit to stop any sticking is used to create a smooth surface. Each new mixture is then slightly overlapped with the loose end of the previous mix. After every 2 mixers have been trowelled down a very small amount of glass bead needs to be cast onto the surface to create an anti-slip surface.
Depending on the outside temperature there is an average of 20 - 30 minutes to work each mix. In the height of summer this can become as little as 10 minutes. The finished project will be okay for foot traffic after around 4 hours and vehicle traffic after 24 hours.
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