Silicone Caulk / Sealant
CAS: 63148-62-9
Category: Construction
⚠ WARNING
Also known as: Silicone sealant, RTV silicone, Silicon rubber sealant, Silicone caulking
| CAS Number | 63148-62-9 |
| Signal Word | WARNING |
| GHS Hazard Classes | harmful |
| NFPA Rating | Health: 1 / Flammability: 1 / Reactivity: 0 |
| Common Names | Silicone sealant, RTV silicone, Silicon rubber sealant, Silicone caulking |
⚠ WARNING: Acetoxy-cure silicones release acetic acid during curing — the vinegar smell indicates active off-gassing. Ensure adequate ventilation during curing. Cured product is largely inert.
⚠ Harmful/Irritant
Hazard Statements (H-codes)
H315 – Causes skin irritation
H319 – Causes serious eye irritation
H335 – May cause respiratory irritation (acetic acid fumes during cure)
Precautionary Statements (P-codes)
P261 – Avoid breathing fumes during curing
P305+P351+P338 – IF IN EYES: Rinse with water for 15 min
P501 – Dispose per local regulations
First Aid Measures (Section 4)
👁
Eye Contact
▼
Flush with water for 15 minutes. Seek medical attention if irritation persists.
🖐
Skin Contact
▼
Wash with soap and water. Cured product can be peeled off.
🫁
Inhalation
▼
Ventilate area during curing. Move to fresh air if irritation occurs.
🫦
Ingestion
▼
Rinse mouth. Call Poison Control (1-800-222-1222) if significant quantity ingested.
🔒 Storage & Handling: Store at room temperature, away from moisture before opening. Once opened, use within 12 months.
Safety glasses
Nitrile gloves
Ensure ventilation during application and curing
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