Sanva Medical
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The Road Repair Revolution: WS-802 is a next-generation pressure-sensitive asphalt repair material engineered for fast, durable, and environmentally friendly pavement maintenance. No heating, no mixing, no waiting. Just pour, compact by traffic, and open to traffic immediately.
Leading specialists in high-performance road maintenance solutions, focusing on eco-friendly, cold-applied repair technologies with expanding international reach through strategic partners.
| Feature | Advantage |
|---|---|
| All-Weather Use | Effective in -20°C to 60°C; usable in rain or shine |
| Instant Application | Traffic can pass immediately after placement |
| Pressure-Activated | Gains strength through vehicle compaction |
| Versatile Use | Asphalt, concrete, potholes, cracks, edge breaks |
| 5-Year Durability | Certified performance & long lifecycle |
| Eco-Friendly | VOC-free, zero emissions, recyclable leftovers |
| Simple Operation | No machines, one person can apply |
| Long Shelf Life | Stores safely for up to 5 years |
| Criteria | WS-802 | Water-activated | Solvent-based |
|---|---|---|---|
| Type | Pressure-sensitive | Reactive | Solvent evaporation |
| Traffic Opening | Immediate | After curing | After curing |
| Application | Simplest | Moderate | Complex |
| Durability | >5 years | ~1 year | ~6 months |
| Rainy Day Use | ✓ | ✗ | ✗ |
| Storage | >5 years | <3 months | ~6 months |
| Environmental | Green | Medium | Poor |
Location: NINGBO, Zhejiang Province, China
Date: May 2025
Traffic: Heavy-duty trucks
Results: Potholes repaired in 15 minutes; traffic resumed instantly. No failures after 60 days of inspection.
