Wiseal 888 — Silane Modified Polyether Sealant (MS)
MS Polymer hybrid — high-strength bonding across wall panels, glass, aluminium, mirror, ceramic and stainless steel
Product description
Wiseal 888 is a Silane Modified Polyether (MS) sealant — low-VOC, non-toxic and non-staining. Single component with good extrusion between 4–40 °C, easy to use, with stable performance during normal joint stretch and shearing.
Storage and shelf life: 12 months from date of manufacture when stored at or below 27 °C (80 °F) in the original unopened containers.
Colors: black, grey and white (standard); a wide variety of custom colors available.
Product features
- Low VOC — non-poisonous, no staining or corrosion to substrate
- Paintable with many different coatings — outstanding compatibility
- Single component, good extrusion between 4–40 °C — easy to use
- Stable performance during normal shape change from stretching and shearing of construction joints
- Excellent weather and aging resistance
Applications
- Wall panel bonding — PVC, PC, wood, and similar substrates
- Excellent adhesion to aluminium, glass, metal, mirror, stainless steel, brick, ceramic, etc.
Technical specifications
Tested at 25 °C and 55% RH
| Item | Value | Test method |
|---|---|---|
| Tack-free time | 4–6 minutes | ASTM C679 |
| Specific gravity (g/cm³) | 1.62–1.65 | — |
| Hardness (Shore A) | 40 | ASTM C661 |
| Elongation (%) | 220% | ASTM D412 |
| Adhesion & cohesion under cyclic movement | No failure | ASTM C719 |
| Tensile strength | 1.15 MPa | ASTM C1184 |
| Shelf life (months) | 12 | — |
Cautions
- Do not apply in environments over 80 °C
- Do not use in applications for immersion in water or constantly wet conditions
- Do not apply on substrates that bleed oil, plasticizer or solvent
- Avoid eye contact with uncured sealant, especially with children — in case of eye contact, flush eyes with water or seek medical attention immediately
