River Sands
River Sands 7C Kiln-Dried Silica Sand 20kg
- Regular price
- $24.50 AUD
- Sale price
- $24.50 AUD
- Regular price
-
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- 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.
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Overview & Features
- 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
Application Guide
- 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.
Specifications & Standards
- 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
Product Documents
Technical Specifications
Key technical properties of this product. Refer to the Technical Data Sheet for complete installation and performance information.
| Classification | 7C dried and graded silica filter sand |
|---|---|
| Suitable Substrates | Pool filter vessels and compatible wet-applied coating systems; confirm the receiving system requirements |
| Quality Management | Manufactured under an ISO 9001 quality management system |
| Construction Use Hold Point | Confirm the coating accepts dry 0.6–1.2 mm silica sand before broadcast use |
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