Item #960036

Sika Sikaflex-221 Multi-Purpose Polyurethane Sealant and Adhesive

$19.88
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                  Image of : Sika Sikaflex-221 Multi-Purpose Polyurethane Sealant and Adhesive Sika Sikaflex-221 Multi-Purpose Polyurethane Sealant and Adhesive Item # 960036

                  Description

                  Sikaflex®-221 is a high-quality multi-purpose 1-component polyurethane sealant/adhesive that bonds well to a wide variety of substrates It is suitable for making permanent elastic seals and cures on exposure to atmospheric humidity to form a durable elastomer. Meets approvals ASTM C920 types Sikaflex®-221 is tested and classified in accordance with ANSI/UL 723 "Test for Surface Burning Characteristics of Building Materials".

                  Features:

                  • Bonds well to a wide variety of substrates
                  • Highly elastic and durable
                  • Resistant to ageing and weathering exposure
                  • Non-corrosive
                  • Low odor
                  • Can be sanded and overpainted
                  • NSF registered, Proprietary Substances and Nonfood Compounds (black, grey, and white)
                  • UL listed for potable water (black, grey, and white)
                  • Passes EN45545-2 R1/R7 HL3

                  Specifications

                  • Chemical Base: 1-component polyurethane
                  • Cure Mechanism: Moisture-curing
                  • Density (uncured): 1.3 kg/L (10.8 lbs/gal)
                  • Non-sag Properties: Good
                  • Application Temperature: 5 - 40°C (41 - 104°F)
                  • Skin Time: 60 minutes (23°C (73°F)/50% r.h.)
                  • Open Time: 45 minutes (23°C (73°F)/50% r.h.)
                  • Shrinkage: 5%
                  • Shore A Hardness: 40
                  • Tensile Strength: 1.8 MPa (260 psi)
                  • Elongation at Break: 500%
                  • Tear propagation resistance: 7 N/mm
                  • Service Temperature: -50 to 90°C (-58 to 194°F)
                    • 24 hours: 120°C
                    • 1 hour: 140°C
                  • Shelf Life: 12 months (storage below 25°C (77°F))

                  Application:

                  • 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:
                    • Wood
                    • Metals
                    • Metal primers
                    • Paint coatings (2-c systems)
                    • Ceramic materials
                    • Plastics

                  Product Data Sheet

                  Safety Data Sheet

                  Part Numbers for Sika Sikaflex-221 Multi-Purpose Polyurethane Sealant and Adhesive

                  Product Options: 3
                  PRODUCT OPTION ITEM # MFR. PRODUCT # AVAILABILITY
                  White 10.3 oz 960037 90891 In Stock: Leaves Warehouse: Same Day
                  Aluminum Grey 10.3 oz 960038 90892 In Stock: Leaves Warehouse: Same Day
                  Black 10.3 oz 960039 90893 In Stock: Leaves Warehouse: Same Day

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