Performance Comparison of Different Additives in Putty
| Item | PVA 1788 | PVA 2488 | Modified PVA | 9005H | 9005 |
|---|---|---|---|---|---|
| Initial bond strength (MPa) | 0.71 | 0.85 | 0.76 | 0.85 | 0.82 |
| Bond strength after water immersion (MPa) | 0.21 | 0.25 | 0.35 | 0.45 | 0.55 |
| Lumps or pits during mixing | Yes | Yes | Slight | No | No |
| Workability | Trowel sticky | Trowel sticky | Smooth | Smooth | Smooth |
| Pinholes/pits after drying (uncalendered) | Yes | Yes | No | No | No |
| Particles/insolubles after calendering | Yes | Yes | No | No | No |
| Hardness consistency before & after sanding | Inconsistent, powdering after sanding | Inconsistent, powdering after sanding | Basically consistent, slight powdering | Consistent, no powdering | Consistent, no powdering |
| Dents/sand marks after sanding | Yes | Yes | Slight | No | No |
Putty containing 9005H/P is smooth, free of lumps and pits during mixing.
Putty containing polyvinyl alcohol powder produces lumps and pits during mixing.
Putty containing polyvinyl alcohol powder shows insoluble particles, pits and pinholes.
▲ Putty containing 9005H/P is fine and smooth, free of dents and insoluble particles.
Website: www.china-pva.net
Whatsapp: 0086-15380400285
E-mail: sales2@china-pva.net
