Identification
Product identifiers, regulatory numbers, and supplier information
Product Information
- Product Name
- Sikaflex®-521 UV
Regulatory Identifiers
- CAS Number
- N/A
Identified Uses
Sealant/adhesive
Manufacturers & Suppliers
Sika Limited
manufacturer
Watchmead Welwyn Garden City Hertfordshire. AL7 1BQ
+44 (0)1707 394444
Emergency Contacts
National Chemical Emergency Centre (NCEC)
+44 870 190 6777
24 Hour
Hazard Identification
GHS classification, signal word, pictograms, and hazard statements
Hazard Classifications
GHS Pictograms
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Composition / Information on Ingredients
Chemical components, concentration ranges, and hazardous substance identification
| Chemical Name | CAS Number | Concentration | Hazardous |
|---|---|---|---|
| distillates (petroleum), hydrotreated light paraffinic EC: 265-158-7 | 64742-55-8 | 2.5 - 5% | Yes |
| Urea,N,N"-(methylenedi-4,1-phenylene)bis[N'-butyl- EC: 416-600-4 | 77703-56-1 | 2.5 - 5% | Yes |
| trimethoxyvinylsilane EC: 220-449-8 | 2768-02-7 | 0.5 - 1% | Yes |
| tetramethyl orthosilicate | --- | 0.2% | No |
First Aid Measures
Emergency procedures for chemical exposure incidents
Move to fresh air.
Take off contaminated clothing and shoes immediately. Wash off with soap and plenty of water.
Remove contact lenses. Keep eye wide open while rinsing.
Do not induce vomiting without medical advice. Rinse mouth with water. Do not give milk or alcoholic beverages. Never give anything by mouth to an unconscious person.
Medical Treatment
Treat symptomatically.
Firefighting Measures
Extinguishing media, specific hazards, and firefighter protection
In case of fire, use water/water spray/water jet/carbon dioxide/sand/foam/alcohol resistant foam/chemical powder for extinction.
Standard procedure for chemical fires.
Firefighter Protection
In the event of fire, wear self-contained breathing apparatus.
Accidental Release Measures
Spill cleanup procedures, containment, and environmental protection
No special environmental precautions required.
Wipe up with absorbent material (e.g. cloth, fleece).
Materials: cloth, fleece
Related Products
Similar products with comparable safety profiles
Handling and Storage
Safe handling precautions, storage conditions, and workplace requirements
No special handling advice required. Follow standard hygiene measures when handling chemical products.
Keep container tightly closed in a dry and well-ventilated place. Store in accordance with local regulations.
When using do not eat or drink. When using do not smoke.
Normal measures for preventive fire protection.
Exposure Controls / PPE
Occupational exposure limits, engineering controls, and protective equipment
Maintain air concentrations below occupational exposure standards. Ensure adequate ventilation, especially in confined areas.
Chemical-resistant, impervious gloves complying with an approved standard must be worn at all times when handling chemical products. Reference number EN 374. Follow manufacturer specifications. Butyl rubber/nitrile rubber gloves (> 0,1 mm) Recommended: Butyl rubber/nitrile rubber gloves.
Safety glasses
In case of inadequate ventilation wear respiratory protection. Respirator selection must be based on known or anticipated exposure levels, the hazards of the product and the safe working limits of the selected respirator. organic vapor filter (Type A) A1: < 1000 ppm; A2: < 5000 ppm; A3: < 10000 ppm Ensure adequate ventilation. This can be achieved by local exhaust extraction or by general ventilation. (EN 689 - Methods for determining inhalation exposure). This applies in particular to the mixing / stirring area. In case this is not sufficient to keep the concentrations under the occupational exposure limits then respiration protection measures must be used.
Protective clothing (e.g. Safety shoes acc. to EN ISO 20345, long-sleeved working clothing, long trousers). Rubber aprons and protective boots are additionally recommended for mixing and stirring work.
No special environmental precautions required.
Physical and Chemical Properties
Appearance, physical state, melting point, boiling point, and material characteristics
Stability and Reactivity
Chemical stability, hazardous reactions, and incompatible materials
The product is chemically stable.
No dangerous reaction known under conditions of normal use.
No hazards to be specially mentioned.
No data available
No data available
methanol; No hazardous decomposition products are known.
Ecological Information
Environmental toxicity, biodegradation, and bioaccumulation data
The data for this section has not been processed yet.
Disposal Considerations
Waste treatment methods, disposal recommendations, and waste codes
The data for this section has not been processed yet.
Transport Information
UN numbers, shipping names, transport classes, and regulatory requirements
Regulatory Information
Chemical regulations, safety assessments, and compliance status
The data for this section has not been processed yet.
Frequently Asked Questions
Common questions about safety, handling, and properties
What is the hazard signal word for Sikaflex®-521 UV?
The signal word is no signal word.
What is the physical form of Sikaflex®-521 UV?
Sikaflex®-521 UV is a liquid appearing as paste with various color. It has slight odor.
What is Sikaflex®-521 UV used for?
Sealant/adhesive
What is the melting point of Sikaflex®-521 UV?
The melting point is No data available and the boiling point is No data available.