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Sikaflex
®
291i – Product Data Sheet
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Product Data Sheet
Version 3 (09 / 2011)
Sikaflex
®
-291i
Multifunctional adhesive sealant for marine application
Technical Product Data
Chemical base
1-C polyurethane
Colour (CQP
1
001-1)
White, grey, black,
brown
Cure mechanism
Moisture-curing
Density (uncured) (CQP 006-4)
(depending on colour) 1.3 kg/l approx.
Non-sag properties
Good
Application temperature
ambient 10 - 40°C (50 - 105°F)
Tack free time
2
(CQP 019-1)
60 min. approx.
Open time
2
(CQP 526-1)
45 min. approx.
Curing speed (CQP 049-1)
(see diagram)
Shrinkage (CQP 014-1)
2% approx.
Shore A-hardness (CQP 023-1 / ISO 868)
40 approx.
Tensile strength (CQP 036-1 / ISO 37)
1.8 MPa
approx
Elongation at break (CQP 036-1 / ISO 37)
500% approx.
Tear propagation resistance (CQP 045-1/ ISO 34)
7 N/mm approx
Glass transition temperature (CQP 509 -1/ ISO 4663)
-45°C (-50°F) approx.
Service temperature (CQP 513-1)
Short term
4 hours
1 hour
-40 - 90°C (-40 - 195°F)
120°C (250°F)
140°C (285°F)
Shelf life (storage below 25°C) (CQP 016-1)
12 months
1)
CQP= Corporate Quality Procedure
2)
23°C / 50% r.h.
Description
Sikaflex
®
-291i is a non-sag 1-C
polyurethane sealant specifically
developed for the marine market,
which cures on exposure to
atmospheric moisture and forms a
durable elastomer. Sikaflex
®
-291i
meets in addition the low spread of
flame requirements set out by the
International Maritime Organisation
(IMO).
Sikaflex
®
-291i is manufactured in
accordance
with
the
ISO
9001 / 14001 quality assurance
system and with the responsible
care program.
Product Benefits
-
Wheelmark approved
-
1-C formulation
-
Highly elastic
-
Low odour
-
Non-corrosive
-
Can be over painted
-
Bonds well to a wide variety of
marine substrates
-
VOC and emission free
Areas of Application
Sikaflex
®
-291i is a multipurpose
product used in marine con-
structions. It is suitable for making
elastic, vibration-resistant joint
seals, and can also be used for a
variety of interior and exterior
sealing applications. Sikaflex
®
-291i
bonds extremely well to the ma-
terials commonly used in marine
construction like wood, metals,
metal primers and paint coatings
(2-C systems), ceramic materials
and
plastics
(GRP,
etc.).
Sikaflex
®
-291i must not be used to
seal plastics that are prone to
stress cracking (e.g. PMMA, PC,
etc.).
This product is suitable for experi-
enced professional users only.
Test with actual substrates and
conditions have to be performed to
ensure adhesion and material
compatibility.
