Ardex Scoretech ST-SP Supreme Primer
ST-SP is a high-performance latex admixture used as a primer on concrete, render, plasterboard, lightweight blocks and other substrates, significantly improving the bond between overlays and substrates. It can also be mixed with cement as a bonding slurry, or with cement and sand to produce 'scratch coat', repair mortar and waterproofing layers.
| Packaging | 20 kg / pail |
|---|---|
| Colour | Milky white |
| Coverage | Approx. 1000 sq.ft / 20 kg (Actual coverage varies with substrate conditions and application thickness) |
Applications
- Substrate primer
- Self-levelling primer
- Scratch coat treatment
- Concrete repair
- Waterproofing mortar and curing agent
Advantages
- Reduces shrinkage cracking
- Rust protection
- Waterproof and moisture resistant
- 28-day bond strength ≥ 2–5 N/mm²; compressive strength ≥ 30 N/mm²; complies with BS 6319 and HKHA standards
- Low VOC, environmentally friendly