300ml Black Sikaflex 221 Sealant

Part no. 482298

300ml Black Sikaflex 221 Sealant
Pack qty: 1 - In stock
AVAILABLE FOR NEXT WORKING DAY DELIVERY *
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 Black
 300ml
 300ml
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Description

Product details

• High-quality multi-purpose non-sag 1-C polyurethane sealant
• Cures on exposure to atmospheric humidity: forms a durable elastomer
• Bonds well to a wide variety of substrates: metals, metal primers, paint coatings (2-C systems), ceramic materials and plastics
• Non-corrosive
• Can be over-painted and sanded
• Elastic
• NSF-approved for incidental food contact
• As from the 24th of August 2023 adequate training is required before industrial or professional use.


Application areas

• Sikaflex®-221 bonds well to a wide variety of substrates and is suitable for making permanent elastic seals of high adhesive strength
• Suitable substrate materials are timber, metals, metal primers and paint coatings (2-c systems), ceramic materials and plastics
• Seek manufacturer™s advice before using on transparent and pigmented materials that are prone to stress cracking
• This product is suitable for professional experienced users only
• Tests with actual substrates and conditions have to be performed to ensure adhesion and material compatibility


Technical data

• Chemical base: 1-C polyurethane
• Colour (CQP 001-1): Black
• Cure mechanism: Moisture-curing
• Density (uncured) (CQP 006-4): approximately 1.3 kg/l
• Non-sag properties: Good
• Application temperature: 5 - 40°C (40 - 105°F)
• Tack free time (CQP 019-1): approximately 60 minutes
• Open time (CQP 526-1): approximately 45 minutes
• Shrinkage (CQP 014-1): approximately 5%
• Shore A-hardness (CQP 023-1/ISO 868): approximately 40
• Tensile strength (CQP 036-1/ISO 37): approximately 1.8 MPa
• Elongation at break (CQP 036-1/ISO 37): approximately 500%
• Tear propagation resistance (CQP 045-1/ISO 34): approximately 7 N/mm
• Glass transition temperature (CQP 509 -1/ISO 4663): approximately -45°C (-50°F)
• Thermal resistance (CQP 513-1):90°C (195°F)
• Short term 1 day 120°C (250°F)
• 1 hour 140°C (285°F)
• Service temperature: -40 - 90°C (-40 - 195°F)


Download safety data sheet

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