RedRock 6″ Stone Wool Grow Slabs

RedRock Stone Wool 6″ Grow Slabs

High-density material offers ample support and water retention for plants of any size, and ensures that the slabs will maintain their shape during handling. Sterile, UV-blocking wrapper protects roots and fits tightly to keep water and nutrients in their root zone. Specially-developed wetting agent provides efficient, uniform saturation and optimized nutrient uptake with a water holding capacity of 80-90%. Pre-cut squares ensure perfectly uniform, repeatable spacing for grow blocks-no measuring or guesswork required. RedRock Blocks, Slabs, and Plugs are manufactured from at least 70% recycled material.

Specifications and Packaging:

• Moisture Retention: Stone wool has high moisture retention.
• Nutrient Content: Holds hydroponic nutrients post-hydration.
• Oxygen Availability: High-If allowed to drain the material allows for excellent oxygen to roots.
• pH and EC: High. pH can become very basic pH testing should be done periodically.
• Durability: High. Does not decompose.
• Areas of use: Hydroponic systems (floor and drain)
• Crops: Supports multiple crop types through the entire growth cycle.
• Upcycling: Can be sterilised and reused for couple of seasons, or shredded and used as soil conditioner.

RedRock Grow Slab – 90 x 15 x 7.5 cm – 36-Inch x 6-Inch x 3-Inch (16/Cs) (16 Cs/Plt)

• 16/Case
• 16 Cases/Pallet (192 slabs)

How to Use:

1. RedRock slabs are ultra-durable and made from premium material, but they should still be handled with care; Always keep mineral wool dry until use.
2. Place the slabs in your grow trays and spray down the mineral wool with nutrient solution through the pre-cut squares until saturated. Let them soak without draining for a minimum of 30 minutes.
3. When you’re ready for planting, cut drainage slits in the bottom of the slabs to prevent over-watering, then place your plants’ grow blocks directly onto the pre-cut squares.
4. As your fertigation system circulates nutrients and water to your plants, RedRock’s specialized wetting agent will deliver it evenly throughout your plants’ root zone.