SIKAFLEXL221 ALUM GY DR50GAL

SIKAFLEXL221 ALUM GY DR50GAL
Sika 90896 Sikaflex-221 Aluminum Gray DR50GAL = 1 Each

Sikaflex®-221 - Multi-purpose adhesive sealant with a wide adhesion range

PRODUCT BENEFITS

• Bonds well to a wide variety of substrates
• Resistant to aging
• Can be sanded and painted
• Listed under NSF/ANSI/CAN 61 - Drinking Water System Components (aluminum gray, black, and white)
• Listed under NSF - Proprietary Substances and Nonfood Compounds (aluminum gray, black, and white)
• Non-corrosive
• Low odor

Usage

Sikaflex®-221 bonds well to a wide variety of substrates and is suitable for making permanent elastic seals . Suitable substrate materials are metals, metal primers and paint coatings (2-component systems), ceramic materials and plastics. It is ideally used for internal sealing and simple bonding applications. Seek manufacturer’s advice and perform tests on original substrates before using Sikaflex®-221 on materials prone to stress cracking. This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed ensuring adhesion and material compatibility.

Packaging

• Cartridge 300 ml
• Unipack 400 ml600 ml
• Pail 4.5 gal (US)
• Drum 50 gal (US)

Chemical base	1-component polyurethane
Color (CQP001-1)	White, aluminum gray, black, colonial white
Cure mechanism	Moisture-curing
Density (uncured) (depending on color)	1.3 kg/l (10.8 lb/gal)
Non-sag properties	Good
Application temperature (ambient)	5 - 40 °C (41 - 104 °F)
Skin time (CQP019-1)	60 minutesA
Open time (CQP526-1)	45 minutesA
Curing speed (CQP049-1)	(see diagram)
Shrinkage (CQP014-1)	5 %
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)	500 %
Tear propagation resistance (CQP045-1 / ISO 34)	7 N/mm (40 pli)
Service temperature (CQP513-1) (24 hours)	-50 - 90 °C (-58 - 194 °F)
Service temperature (CQP513-1) (1 hour)	120 °C (248 °F)
Shelf life (CQP016-1) (cartridge / unipack)	12 monthsB
Shelf life (CQP016-1) (pail / drum)	6 monthsB