Stone Zone & Landscaping Supplies
UltraScape Pro-Prime Paving Slurry Primer, 20kg Bag
Pickup available at Ferndown Stone Zone & Landscaping Centre
Usually ready in 24 hours
UltraScape Pro-Prime Paving Slurry Primer
UltraScape Premprime, also known as Instarmac Primer, is the Stone Zone's top-seller when it comes to paving primers; and the one most loved by our professional Landscapers. Using a premium quality, commercially-approved Primer is a really important step when laying paving slabs, which we talk about more below.
This Grey Paving Slurry Primer is a polymer-modified, cementitious primer which has been manufactured to provide an exceptional bond between paving slabs and bedding mortar. This Primer is suitable on all paving stones, including Natural Sandstone Paving, Outdoor Porcelain Tiles, Concrete Paving and more.
This Grey Slurry Primer is ideal for a variety of paving applications, these include: driveways, garden patios, pathways, carriageways and commercial paving applications.
In terms of coverage, Premprime Paving Slurry Primer should provide coverage for up to 15 square metres of Paving slabs (at a 1-2mm thickness).
You can purchase this Primer as a 20kg paper bag. We also sell UltraScape PremPrime, Grey in 17kg tubs.
Benefits of Pro-prime Paving Slurry Primer
High Quality Durability
Versatile; Suitable for all Paving types
Exceptional Bonding
Easy to Use; Just add Water
BS 7533 compliant
Why is Primer so Important for Paving Slabs?
Paving Primer is primarily used on Porcelain Paving tiles by Landscapers, with some using it on natural stone pavers such as Sandstone Paving and Limestone Paving, as well as Cobble Setts and Block Paving.
Our recommendation would always be to use Pro-prime Paving Primer on Porcelain Paving. This is because these paving slabs are man-made and therefore have smoother sides and typically less 'grip' than natural paving.
By priming your Porcelain Paving slabs before you lay them onto your mortar bed, you are giving them a bonding agent that will firmly bond the paving slabs to the mortar bed in a way that will stand the test of time throughout all weather conditions, as well as footfall on your garden patio.
If you don't use a Paving Primer on Porcelain Paving, over time you may experience some movement of your patio slabs, where they can essentially 'un-stick' from the mortar bed, which will cause problems down the line which will be hard to fix.
How to Use Premprime Paving Slurry Primer
Whether you're a landscaping professional or an experienced gardener taking on the challenge of laying paving slabs, you'll need to ensure you're using a top quality Paving Primer, especially on Porcelain Paving Slabs. Read our step-by-step guide below for some top tips on how to use this Paving Slurry Primer. Please note that this paving primer has a workability time of 1 hour.
Precautions: This products requires careful handling; we recommend wearing protective gloves and clothing. As this product contains cement which is highly alkaline, skin irritation may occur when in contact. If this product gets into your eyes, wash out immediately with clean water and seek medical attention if irritation persists. This should be used in a well-ventilated area and mixed carefully to avoid too must dust rising.
Step 1 - Preparation
Once you have prepared your mortar base - tips on Laying Paving Slabs can be found here - you should be ready to start priming your paving slabs. Ensure the patio slabs have been cleaned of any dust or debris by simply brushing down or washing with clean water. Ensure you have carried this out for your entire batch of paving slabs before you start priming.
Step 2 - Mixing
Pour 5.95 litres of clean water into a large container. Add UltraScape prem-prime powder slowly and mix for 3 to 5 minutes to create a smooth, lump-free slurry. Your Primer is now ready to use.
Step 3 - Priming
Start to apply your paving primer liberally by using a small paint roller and aim to coat the back of the paving slab with 1-2mm of the primer. Once you're happy that the entire surface area is coated with primer, immediately place your paving slab in place onto the prepared mortar bed. Repeat this process across your paving tiles.
Step 4 - Storage
If you have any of this powdered substance left, you can store this back in its tub, provided there is no water present. You can store this for up to 8 months in a cool, dry place.
We have many Paving Accessories within our large range of landscaping supplies, including Paving Jointing Grout, Paving Cleaner and Natural Stone Sealer.
Why is Primer so Important for Paving Slabs?
Many Landscapers will use Paving Primer on Porcelain Paving tiles in particular, and some will use it on natural stone paving such as Sandstone Paving and Limestone Paving, as well as Cobble Setts and Block Paving.
We would strongly recommend using Premprime Paving Primer on Porcelain Paving due to their manufactured properties and the lack of 'grip' that these smooth, porcelain tiles typically have.
By priming your Porcelain Paving slabs before you lay them onto your mortar bed, you are providing an agent that will firmly bond the paving slabs to the mortar bed in a way that is sustainable through all weather conditions, along with the footfall your garden patio will experience.
If you don't use a Paving Primer on Porcelain Paving, over time you will notice some movement of your patio slabs and they will essentially 'un-stick' from the mortar bed, which will cause problems down the line which will be hard to rectify.
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Primer for Porcelain Paving, Natural Stone & Outdoor Tiles
Using the correct primer is one of the most important steps when installing porcelain paving, natural stone paving, outdoor tiles and other low-absorption landscaping materials. Primer creates a strong bond between the paving slab and the mortar bed, helping to prevent movement, lifting and future installation failures.
At Stone Zone, we stock a range of high-quality paving primers suitable for porcelain paving, sandstone, limestone, granite and concrete paving products. Whether you're a professional landscaper or a homeowner tackling a garden project, using a slurry primer helps achieve a long-lasting installation.
Why Use a Paving Primer?
Paving primers are designed to:
- Improve adhesion between paving slabs and mortar
- Reduce the risk of slabs becoming loose over time
- Help create a stronger and more durable patio
- Improve installation performance on porcelain and low-porosity materials
- Meet best practice installation guidelines
Porcelain paving in particular should always be installed using a suitable slurry primer, as the smooth underside of the slab can make adhesion difficult without one.
Which Primer Do I Need?
The correct primer will depend on the type of paving being installed and the installation method being used. Most porcelain paving installations require a slurry primer applied to the underside of each slab before laying.
If you're unsure which paving primer is best for your project, our team can help recommend the most suitable product based on your paving choice and installation requirements.
Shop Paving Primers Online
Browse our range of paving primers below, available for local and nationwide delivery. We also stock a wide range of porcelain paving, natural stone paving, sealers, jointing compounds and landscaping accessories to help complete your project.
