River Sands Clearview 7C kiln-dried silica filter sand 20kg bag
River Sands Clearview 7C kiln-dried silica filter sand 20kg bag
River Sands

River Sands 7C Kiln-Dried Silica Sand 20kg

$24.50 AUD
$24.50 AUD
Shipping calculated at checkout.

Prices shown exclusive of GST.

Online stock available
River Sands 7C Kiln-Dried Silica Sand is a clean, graded natural silica filter medium supplied in a 20 kg bag. The sand is triple washed, kiln-dried at 1000°C and graded to approximately 0.6–1.2 mm, corresponding to the commonly used 16/30 mesh range for pool sand filters. River Sands identifies 7C sand for residential and commercial swimming pools, aquatic-centre filtration, irrigation and potable-water filtration. It is manufactured under an ISO 9001 quality management system and is stated by River Sands to comply with AWWA B100 requirements. For construction coating work, the dry, controlled grading can also be used as a broadcast aggregate to form a mechanical key where the selected coating manufacturer permits compatible silica sand of this size. Confirm the coating system requirements before use, broadcast only into wet material at the specified rate, and remove all loose excess before applying the next coat.
  • Controlled 7C grading provides consistent filter media and broadcast aggregate size.
  • Kiln drying supports use where a dry mineral aggregate is required.
  • Triple washing reduces unwanted dust and fine particles.
Calculating estimated delivery

H2O AI Product Support

Technical and product guidance for the item you’re viewing.
  • Dried and graded natural silica filter sand
  • 7C grading of approximately 0.6–1.2 mm
  • Common 16/30 mesh grade for pool sand filters
  • Triple washed to remove dust and fine particles
  • Kiln-dried at 1000°C
  • Clean, hard and abrasion-resistant natural silica particles
  • Manufactured under an ISO 9001 quality management system
  • River Sands states compliance with AWWA B100
  • Supplied in a 20 kg bag
  • May be used as a coating broadcast aggregate only where the selected system accepts this grading
  • Pool filtration
  • 1. Confirm the filter manufacturer specifies 16/30 mesh sand media and determine the required fill mass.
  • 2. Isolate, empty and inspect the filter in accordance with the equipment manufacturer's instructions.
  • 3. Fill the filter carefully to avoid damage to internal laterals or collectors.
  • 4. Commission, backwash and rinse strictly in accordance with the filter manufacturer's procedure.
  • Coating broadcast use
  • 1. Confirm the selected primer, resin or coating TDS permits clean, dry silica sand of approximately 0.6–1.2 mm.
  • 2. Keep the bag sealed and dry. Do not use damp or contaminated aggregate.
  • 3. Apply the receiving coating at the specified film build.
  • 4. While the coating remains wet, broadcast the sand evenly at the specified rate or to refusal where required by the system.
  • 5. Allow the coating to cure, then sweep and vacuum all loose, unbound aggregate.
  • 6. Check that the bonded sand provides a continuous mechanical key without loose areas.
  • 7. Apply the next compatible layer within the system's specified recoat window.
  • Avoid generating airborne dust and follow the current SDS for PPE and handling controls.
  • Product type: Dried and graded natural silica filter sand
  • Grade: 7C
  • Nominal grading: Approximately 0.6–1.2 mm
  • Filter grade: Commonly described as 16/30 mesh
  • Processing: Triple washed and kiln-dried at 1000°C
  • Bulk density: Approximately 1.5 t/m³
  • Specific gravity: Approximately 2.65
  • Acid solubility: Less than 2% in 1:1 HCl solution
  • Packaging: 20 kg bag
  • Quality system: ISO 9001
  • Filtration standard: River Sands states compliance with AWWA B100
  • Hazard classification: Eye Irritation Category 2B
  • Transport: Not regulated as dangerous goods under ADG, IATA or IMDG
  • Construction limitation: Confirm the selected coating system accepts clean, dry silica aggregate of this grading before use
Technical Data Sheet Safety Data Sheet

Technical Specifications

Key technical properties of this product. Refer to the Technical Data Sheet for complete installation and performance information.

Classification7C dried and graded silica filter sand
Suitable SubstratesPool filter vessels and compatible wet-applied coating systems; confirm the receiving system requirements
Quality ManagementManufactured under an ISO 9001 quality management system
Construction Use Hold PointConfirm the coating accepts dry 0.6–1.2 mm silica sand before broadcast use
View Technical Data Sheet

River Sands 7C Silica Sand FAQs

What particle size is River Sands 7C Filter Sand?
River Sands' grading data identifies 7C sand as approximately 0.6–1.2 mm. The pool-filter product is also described as the commonly used 16/30 mesh grade.
Can River Sands 7C be used as broadcast sand in coatings?
It can be used as a dry broadcast aggregate where the selected coating or resin manufacturer's current technical data accepts clean silica sand of approximately 0.6–1.2 mm. Confirm compatibility and the required broadcast rate before use; it is not automatically suitable for every membrane, primer or anti-slip finish.
Is River Sands 7C suitable for pool sand filters?
Yes. River Sands identifies 7C as pool filter media for residential and commercial swimming pools and aquatic centres. Confirm that the filter manufacturer specifies 16/30 mesh media before filling the filter.
Is River Sands 7C washed and kiln-dried?
River Sands states that the filter sand is triple washed to reduce dust and fine particles and kiln-dried at 1000°C. For coating broadcast work, keep the bag sealed and the material dry before application.
What safety precautions apply when handling the sand?
The supplied SDS classifies River Sands Dried Sand as a hazardous chemical due to eye irritation Category 2B, while remaining non-dangerous goods for transport. Avoid generating airborne dust, wear suitable eye and respiratory protection for the task, and follow the current SDS.

Need Technical Advice?

Not sure if this product is suitable for your project?

Our technical team provides independent advice on product selection, compatibility and waterproofing systems.

Independent product advice backed by real-world waterproofing experience.

Contact Technical Support
(07) 3667 9878

Monday–Friday
7:00 am – 3:00 pm AEST

Warehouse Stocked
Fast Australia-wide Delivery
Expert Technical Advice
Secure Checkout

Frequently Purchased Together

These popular picks are often added by trade professionals to complete their project kits.