Fireproof sealant
LaSeal 763 Firestop Neutral silicone sealant
Features
2. Asbestos free.
3. Simple to use and apply.
4. Good adhesion without use of a primer.
5. Smoke, fume, water and UV resistant.
6. Excellent movement capability, meets 500 cycle requirements.
7. Meets FV-0 Fireproof grade.
8. More than 4 hours Fire resistance without using any backfilling material according to EN 1366-4 under certain conditions;
Areas of application
Technical Data Sheet(TDS)
LaSeal 763 Firestop Neutral silicone sealant
Item | Data |
Basic material | Neutral elastic silicone |
Color | Gray , White |
Consistency | Smooth paste |
PH | 7.5-9 |
Specific gravity | Approx. 1.4 g/cm3 |
Tack-Free time | 15-30 min (23 °C and 50%R.H) |
Curing Rate (mm/day) | Min.2 mm/day (23 °C and 50% R.H) |
Shore A hardness | 40 ± 5 Shore A |
Elongation | > 100% |
Tensile strength | ≥ 0.4 N/mm2 |
Application Temperature | +5 °C to +40 °C |
Volume shrinkage | Approx. 0 – 5% |
Movement capability | Approx. 33% |
Restrictions:Damp or humid conditions will significantly extend the cure time.
Do not apply below 5℃
Surface Preparation
● Following cleaning procedure and materials are recommended
● Glass Degrease with alcohol or MEK
● Aluminium, light alloys and stainless steel Degrease with alcohol or MEK
● Other Metals Lightly abrade then degrease as above
● Wood Lightly abrade surface then remove dust
● Plastics Degrease using an agent recommended by plastics manufacturer
● Concrete and other alkaline Surfaces Brush and remove dust