sikaflex 1c sl limestone 10oz
sikaflex 1c sl limestone 10oz is a single-component, self-leveling polyurethane sealant designed for horizontal joints in concrete and other construction materials. The “Limestone” refers to its color, and the 10oz packaging is typically in cartridge form for convenient use. It cures with atmospheric moisture to form a flexible and durable seal. This sealant offers excellent adhesion, weather resistance, and movement capability, making it ideal for both commercial and industrial applications where horizontal sealing is required.
sikaflex 1c sl limestone 10oz
Primary Uses
- Construction & Building Maintenance
- Sealing of horizontal expansion joints in concrete slabs, driveways, sidewalks, and parking decks.
- Joint filling in garages, balconies, plazas, terraces, and around swimming pools.
- Used in precast concrete panel joints, floors, and foundations to prevent water infiltration.
- Infrastructure & Civil Works
- Applied in highway and airport pavement joints to accommodate movement and reduce moisture penetration.
- Used in joints of tunnels, overpasses, and bridge decks for flexible sealing.
- Industrial & Commercial Facilities
- Sealing expansion and control joints in warehouses, factories, and cold storage floors.
- Used in clean rooms, laboratories, and chemical handling areas due to its resistance to chemicals and cleaning agents.
Secondary Uses
- Residential Construction
- Used in horizontal concrete around patios, walkways, and entrance areas.
- Retail & Public Spaces
- Applied in shopping centers, schools, and commercial building outdoor surfaces where aesthetics (limestone color) and performance are important.
- Green Building Projects
- Can be used in LEED-certified buildings due to low VOC content and long-lasting sealing properties.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Polyurethane prepolymer (moisture-curing)
- Common/Trade Name: Sikaflex® 1c SL Limestone
- CAS Number: Mixture (proprietary formulation)
- HS Code: 3214.10 (Sealants and mastics)
- Synonyms: Self-leveling polyurethane sealant, Sikaflex SL
2. Physical & Chemical Properties
- Physical State: Paste (in cartridge form)
- Color & Odor: Limestone (off-white/beige); slight polyurethane odor
- Cure Mechanism: Moisture-cured
- Movement Capability: ±25% (ASTM C920)
- Shore A Hardness: ~35
- Application Temperature: +5°C to +35°C (41°F to 95°F)
- Tack-Free Time: ~3–5 hours
- Full Cure: 3–7 days depending on conditions
- Solids Content: 100% (no shrinkage)
3. Safety & Hazard Attributes
- GHS Classification: Skin and eye irritant; contains isocyanates
- Toxicity: Moderate; safe when cured but may cause sensitization during application
- Exposure Limits: Avoid breathing vapors; consult SDS for isocyanate limits
4. Storage & Handling Attributes
- Storage Conditions: Store in original sealed container in a dry place between +5°C and +25°C
- Container Type: 10oz (300 mL) cartridge; also available in sausages and bulk pails
- Shelf Life: 12 months from date of manufacture
- Handling Precautions: Use gloves, eye protection; ensure proper ventilation during application
5. Regulatory & Compliance Attributes
- Complies with ASTM C920 Type S, Grade P, Class 25, Use T, M, G, A, O
- VOC-compliant with SCAQMD Rule 1168 and LEED v4 criteria
- ISO 9001-certified manufacturing process
- Meets USDA regulations for use in food processing and handling facilities (non-food contact)
- REACH and RoHS compliant
6. Environmental & Health Impact
- Biodegradability: Not readily biodegradable; inert after curing
- Ecotoxicity: Low in cured form; avoid release of uncured product into environment
- Bioaccumulation: Not expected
- Environmental Benefit: Long service life reduces need for frequent replacements
Safety Handling Precautions
- PPE Required: Chemical-resistant gloves, goggles, and protective clothing
- Handling Guidelines: Work in well-ventilated areas; avoid contact with skin and eyes
- Storage Measures: Keep sealed containers in dry, shaded area away from direct heat
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if symptoms develop
- Skin Contact: Wash with soap and water; seek medical advice if irritation persists
- Eye Contact: Rinse immediately with clean water for at least 15 minutes; seek medical attention
- Ingestion: Rinse mouth; do not induce vomiting; contact poison control center or seek immediate medical help
Firefighting Measures
- Fire Hazards: Combustible in uncured state
- Extinguishing Media: Dry chemical, foam, CO₂, or water spray
- Special Precautions: Use full protective equipment and self-contained breathing apparatus
- Hazardous Combustion Products: Carbon oxides, nitrogen oxides, and isocyanate vapors
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