Product Data Sheet Version 3 (09 / 2012) Sikaflex®-290i DC Weather resistant deck caulking sealant Chemical base 1 Colour (CQP 001-1) Cure mechanism Density (uncured) (CQP 006-4) Non-sag properties Application temperature 2 Tack free time (CQP 019-1) Curing speed (CQP 049-1) Shrinkage (CQP 014-1) Shore A-hardness (CQP 023-1 / ISO 868) Tensile strength (CQP 036-1 / ISO 8339) Elongation at break (CQP 036-1 / ISO 8339) Tear propagation resistance (CQP 045-1 / ISO 34) Service temperature (CQP 513-1) Shelf life (storage below 25° (CQP 016-1) C) CQP= Corporate Quality Procedures Description ® Sikaflex -290i DC is a 1-C weathering resistant polyurethane for joint sealing. It is specially formulated for caulking joints in traditional timber marine decking. The sealing compound cures with atmospheric moisture to form a flexible elastomer which can be sanded. ® Sikaflex -290i DC meets the low spread of flame requirements set out by the International Maritime Organisation (IMO). ® Sikaflex -290i DC is manufactured in accordance with the ISO 9001 / 14001 quality assurance system and with the responsible care program. cartridge / unipack pail / drum Product Benefits - 1-C formulation - Non-corrosive - Sandable - Excellent weathering resistance - Resistant to seawater and fresh water - Easy workability - Solvent free and very low VOC Areas of Application ® Sikaflex -290i DC is used exclusively for caulking joints in traditional timber decks for boat- and yacht construction. 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. 1-C polyurethane Black Moisture-curing 1.3 kg/l approx. Thixotropic, non-sagging 10 - 35° C 90 min. approx. (see diagram) 1% approx. 40 approx. 3.5 MPa approx. 700% approx. 9 N/mm approx. -40 - 90° (-40 - 195° C F) 12 months 9 months Technical Product Data

Diagram 1: Curing speed Sikaflex -290i DC Chemical Resistance ® Sikaflex -290i offers long-term resistance to fresh water, seawater, and proprietary aqueous cleaning agents; temporarily resistant to fuels, mineral oils, vegetable and animal fats; not resistant to organic acids, concentrated mineral acids and caustic solutions or solvents. The above information is offered for general guidance only. Advice on specific applications will be given on request. Method of Application Surface preparation Surfaces must be clean, dry and free from grease, oil and dust. As a rule, the substrates must be...