for larger joints (10 - 25mm) EnviroSTONE Plus uses the environmentally friendly, plant based organic binder (Organic-Lock) to join the fines of crushed stone screenings together. The coarse particle size distribution of the crushed stone, is the contributing factor to an integral strength designed specifically for large joints.

Erosion Control: EnviroSTONE Plus substantially reduces joint material loss in segmental systems caused by rainfall erosion. When activated by water, it forms an adhesive gel, bonding the crushed stone particles together. This gel, physically holds the aggregate together,while creating a thin film on the surface whenever it is wet. This film then acts as a buffer zone for which the water can travel over.
Weed Deterrent: By elevating the pH of the system, EnviroSTONE Plus naturally creates a toxic environment in which seedlings can�t germinate. Weed growth is therefore, effectively deterred with this natural weed deterrent.
Self-healing/Flexible: Because of the organic, swellable gum, EnviroSTONE Plus remains completely flexible to withstand thermal movement or settlement of the subbase materials. Synthetic jointing materials (like Polymeric Sand) use a chemical reaction to get hard, which can result in cracking or damage, turning a segmental system into a monolithic unit. Unlike other synthetic or "polymeric" materials, EnviroSTONE Plus (because of its organic binder) can actually re-heal itself in the joint. In conditions where shifting from movement may occur, the onset of water, reactivates the gel each time to heal the material and mould it to the shape of the new joint.
Lift and Re-lay: Lifting and replacing stones is easy by moistening the joint with water. This creates the needed flexibility to remove a stone, adjust it and replace it where needed. Creating a solid, stable surface that can be easily altered, gives even the beginner the confidence to create.

No Surface Staining: Using the unique 2 stage watering process, surface staining is avoided! Because the organic binder swells immediately when in contact with water, its erosion control properties are active much faster than any other chemical product. By activating the EnviroSTONE Plus with a slight mist on installation, the very top layer quickly develops its protective film. This allows for a stronger follow up spray that easily cleans the surface. Spraying too heavily when using a chemical product, like polymeric sand, results in the leaching of its binders.
Envirobond is not a Polymeric sand! There are chemical or Polymeric materials on the market that are designed for large joints. These are designed with added chemical binders to create a stronger bond for wide joints. However, this is simply solving one problem by creating another. The material may be resistant to physical damage, but it hinders the flexibility. EnviroSTONE Plus uses the coarser crushed stone particles for its integral strength. This maintains the needed flexibility while still resisting erosion. Controls Erosion � Self Healing � Insect Deterrent � Weed Deterrent � Flexible � Environmentally Friendly!

Download the Envirobond installation brochure