SIKAFLEXL521UV BK C100 /12 CTR300

SIKAFLEXL521UV BK C100 /12 CTR300
Sika 60179 Sikaflex-521 UV Black C100; 12 Cartridge 300 = 1 Case

Sikaflex®-521 UV - WEATHERING-RESISTANT STP ADHESIVE SEALANT WITH A WIDE ADHESION RANGE

PRODUCT BENEFITS

• Aging and weathering-resistant
• Bonds well to a wide variety of substrates without the need for special pre-treatment
• Isocyanate- and solvent-free
• Can be painted
• Can be sanded
• Low odor

Usage

Sikaflex®-521 UV adheres well to a wide variety of substrates and is suitable for elastic sealing and bonding. Suitable substrate materials include timber, metals, metal primers and paint coatings (2-component systems), ceramic materials and plastics. This multipurpose product is suitable for internal and external sealing applications. Seek manufacturer’s advice and perform tests on original substrates before using Sikaflex®-521 UV on materials prone to stress cracking. This product is suitable for experienced professional users only. Test with actual substrates and conditions have to be performed to ensure adhesion and material compatibility.

Packaging

• Cartridge 300 ml
• Unipack 600 ml

Chemical base	Silane Terminated Polymer
Color (CQP001-1)	White, grey
Cure mechanism	Moisture-curing
Density (uncured) (depending on color)	1.4 kg/l (11.7 lb/gal)
Non-sag properties	Good
Application temperature (ambient)	5 - 40 °C (41 - 104 °F)
Skin time (CQP019-1)	30 minutesA
Curing speed (CQP049-1)	(see diagram 1)
Shrinkage (CQP014-1)	2 %
Shore A hardness (CQP023-1 / ISO 48-4)	40
Tensile strength (CQP036-1 / ISO 527)	1.8 MPa (260 psi)
Elongation at break (CQP036-1 / ISO 527)	400 %
Tear propagation resistance (CQP045-1 / ISO 34)	5.5 N/mm (30 pli)
Service temperature (CQP513-1) (4 hours)	-50 - 90 °C (-58 - 194 °F)
Service temperature (CQP513-1) (1 hour)	140 °C (284 °F)
Shelf life (cartridge / unipack)	12 monthsB