VUBA GrassMac Binder, 5.25kg

Designed specifically for Artificial Grass installation, GrassMac is an award-winning, eco-friendly sub-base solution that makes laying synthetic turf faster, easier, and more reliable. By reducing the amount of digging required, it helps landscapers save time and effort while providing homeowners and commercial clients with a long-lasting, low-maintenance foundation that keeps artificial grass looking clean, fresh, and perfectly level.

Unlike traditional sub-bases such as sand or grano dust, GrassMac is engineered to prevent common problems like subsidence, uneven surfaces, and high maintenance. Its durable, high-performance composition ensures a stable, reliable base that will stand up to years of use in both residential gardens and commercial landscapes. Fully SUDS-compliant, GrassMac promotes effective, sustainable drainage, making it an environmentally responsible choice for any synthetic turf project.

One of GrassMac’s key advantages is its superior drainage capacity. This makes it ideal for gardens prone to heavy rain or flash flooding and solves common issues for pet owners, reducing the risk of odours from pet urine. Maintenance is simple: you can even lift your artificial grass and jet wash the GrassMac base, leaving it completely refreshed and ready for reuse.

With GrassMac, you get an innovative, eco-conscious, and low-maintenance artificial grass foundation that transforms synthetic turf installation—delivering long-lasting performance, cleaner surfaces, and hassle-free upkeep.

How to buy GrassMac Binder, 5.25kg

1 x 5.25kg GrassMac Binder

Complete system includes:

1 x 25kg Styrene-Butadiene Rubber (SBR) 2-6mm

3 x 12.5kg Mac Mix 1-5mm

1 x 5.25kg GrassMac Binder

Please purchase separately: 1 Layer of 1mm SRM (Structural Reinforcement Mesh)

Each kit covers: 3.5sqm at 20mm depth.

What is GrassMac?

The GrassMac Artificial Grass Base System is a fully engineered sub-base solution designed for long-lasting, professional artificial grass installations. For optimal performance, the system is installed over VUBA SRM (Structural Reinforcement Mesh), with the artificial grass fitted directly on top — as illustrated.

This high-performance foundation is created by blending recycled aggregate and SBR rubber, which is then mixed on-site with specialist GrassMac resin. The result is a strong yet semi-flexible base layer that delivers excellent drainage, durability, and stability.

Ideal for artificial lawn installations, landscaping projects, gardens, play areas, and commercial applications, the GrassMac System provides a reliable, permeable, and sustainable sub-base solution built to withstand heavy use and varying weather conditions.

Benefits of using GrassMac

• Rapid Installation – Lay your artificial grass on the very same day, reducing downtime on site.
• Sustainable Choice – Manufactured using recycled materials for a more environmentally responsible base system.
• Impact-Absorbing Performance – Provides cushioning underfoot, making it ideal for playgrounds, schools, and sports surfaces.
• Zero Waste Solution – Unused materials can be stored and reused, helping minimise site waste and costs.
• Low Maintenance Design – Promotes effective drainage to keep artificial grass fresh, dry, and odour-free.
• Simple to Clean – Grass can be lifted when required, allowing the base to be easily pressure-washed.
• Guaranteed Stability – Engineered to prevent sinking or movement, outperforming traditional sand or grano dust sub-bases over time.
• Industry Recognised Innovation – Proud recipient of The King’s Awards for Enterprise Innovation 2025

How to install GrassMac

Professional Installation Requirement

GrassMac is a specialist resin-bound base system and must be installed by a fully trained and approved professional landscaper. Correct mixing ratios, preparation, groundworks, and application techniques are essential to ensure the system performs as designed. Professional installation guarantees proper drainage, structural integrity, and long-term stability, as well as compliance with manufacturer guidelines and warranty requirements. Attempting DIY installation or using untrained contractors may compromise the strength and durability of the finished surface.

Health & Safety Guidance

When handling GrassMac materials, always wear appropriate personal protective equipment (PPE), including industrial-grade gloves, eye protection, and suitable workwear. The resin binder should not come into direct contact with skin, particularly before it has cured. Avoid inhaling fumes and ensure the area is well ventilated during mixing and application. In case of accidental contact, follow the manufacturer’s safety data sheet instructions immediately. Proper safety precautions help ensure a safe installation process and a high-quality finished result.

Preparation & Base Build-Up

1. Excavate the area to the required depth and remove all debris from the subsoil.
2. Install a geotextile membrane across the entire area, starting from the furthest edge of the perimeter.
3. Lay and compact 125mm of MOT Type 3 Limestone to create a stable, free-draining sub-base.
4. Optional: Apply a 25mm capping layer of 5–10mm angular stone (such as 10mm Basalt Chippings) for enhanced levelling.
5. Install the SRM (Structural Reinforcement Mesh) to form the structural framework of the system.

Applying GrassMac

1. Spread the GrassMac mixture evenly to a depth of approximately 20mm using a lute.
2. Allow curing for 2–4 hours. Once set, the surface is ready for artificial grass installation as normal.

GrassMac materials are also available for collection from our depots in Ferndown, Bournemouth, and Christchurch.

Buy With Confidence

• Our VUBA GrassMac can be purchased as one complete system
• Please enter the amount of GrassMac systems you need 
• All of our Trims come in crates which can be easily placed into a van or into a garden using a hiab lorry.
• You can choose a free collection from one of our Depots or fuss-free, home delivery.

A Service You Can Rely On

• Our trustworthy service offers prompt delivery to any area in the UK
• Stone Zone is a family-run business that has been well-established since 1998
• Our knowledgeable customer advisors can help you with your purchase
• We pride ourselves on offering a range of affordable garden supplies