# Softwash 1020 – DeckShine Wood & Composite Cleaner
**Prepares decking for sealing, staining or oiling.**
Softwash 1020 removes algae, mould, mildew and organic staining from wood and composite decking. Mildly acidic formula with biodegradable surfactants cleans without damaging timber or composites.
**Key Benefits:**
- Safe for pressure-treated wood & composite decking
- Removes biological growth & surface grime
- Prepares surfaces for sealers, oils & stains
- Coverage: 15-25m²/L (1 coat typical)
- Restores natural timber appearance
## Technical Specs
| Property | Specification |
|----------|---------------|
| **Form** | Clear liquid |
| **pH** | 4.0-5.0 (mildly acidic) |
| **Dilution** | 1:10 to 1:20 |
| **Pack Size** | 5L, 25L |
| **Shelf Life** | 24 months |
## How to Use
1. **Sweep deck** to remove loose debris
2. **Dilute** 1:10-1:20 with water
3. **Apply** with low-pressure sprayer or brush
4. **Dwell** 15-30 mins (don't let dry)
5. **Rinse thoroughly** with garden hose
**Pro Tip:** Seal/oil within 48hrs of cleaning for best adhesion.
## FAQs
**Safe for Ipe/hardwood?** Yes – test patch first.
**New composite decking?** Perfect for first clean before sealing.
**Related:** [Softwash 1070 Wet Look Sealer →](/products/softwash-1070) | [ChlorPlus 10 →](/products/chlorplus-10)