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PRODUCT DATA SHEET
2
Sikaflex®-290 DC PRO
The Professional Deck Caulking Compound
TYPICAL PRODUCT DATA (FURTHER VALUES SEE SAFETY DATA SHEET)
Chemical base
Colour (CQP001-1)
Cure mechanism
Density (uncured)
Application temperature
Skin time (CQP019-1)
Curing speed (CQP049-1)
Shrinkage (CQP014-1)
Shore A hardness (CQP023-1 / ISO 48-4)
Tensile strength (CQP036-1 / ISO 527)
Elongation at break (CQP036-1 / ISO 527)
Tear propagation resistance (CQP045-1 / ISO 34)
Service temperature (CQP513-1)
Shelf life
CQP = Corporate Quality Procedure
DESCRIPTION
Sikaflex®-290 DC PRO is a 1-component polyurethane based joint sealing compound, specifically formulated for caulking joints in traditional timber marine decking. It exhibits excellent weathering resistance and is therefore
well suited for highly exposed open joints
within the maritime environment. The sealing
compound cures to form a flexible elastomer
which allows a fast and easy sanding process.
Sikaflex®-290 DC PRO meets the requirements set out by the International Maritime
Organisation (IMO).
A)
23 °C / 50 % r. h.
PRODUCT BENEFITS
Excellent weathering resistance▪
Robust and durable▪
Easy and fast sandable▪
Ideal flow behavior for application▪
Long toolability▪
Unique aspect▪
Resistant to seawater and fresh water▪
cartridge /unipack
ambient 5 ─ 35 °C
pail / drum
1-component polyurethane
Black
Moisture-curing
1.3 kg/l
90 minutes
A
(see diagram)
3 %
40
3 MPa
600 %
10 N/mm
-50 ─ 90 °C
12 months
9 months
B
B
B)
storage below 25 °C
AREAS OF APPLICATION
Sikaflex®-290 DC PRO is designed for caulking
of joints in traditional timber decking for
boat-, yacht and commercial ship constructions.
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.
PRODUCT DATA SHEET
Sikaflex®-290 DC PRO
Version 03.01 (04 - 2023), en_GB
012001202904001000
1 /
Page 2
CURE MECHANISM
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Sikaflex®-290 DC PRO cures by reaction with
atmospheric moisture. At low temperatures
the water content of the air is generally lower
and the curing reaction proceeds somewhat
slower (see diagram 1).
Diagram 1: Curing speed for Sikaflex®-290 DC PRO
CHEMICAL RESISTANCE
Sikaflex®-290 DC PRO offers effective longterm resistance to fresh water, seawater and
mild aqueous cleaning agents. The sealant is
not resistant to solvents, acids, caustic solutions and chlorine containing cleaners. A brief
contact with fuels or lubricants has no significant effect on the durability of the sealant.
METHOD OF APPLICATION
Surface Preparation
Surfaces must be clean, dry and free from
grease, oil and dust. In case of timber the use
of an adequate Primer, e.g. Sika® Primer-290
DC, is mandatory. Additional surface treatment, for example for deck perimeter sealing,
depends on the specific nature of the substrates. Therefore all recommendations must
be determined by preliminary tests.
Application
For satisfactory results the adhesive must be
applied with adequate equipment such as
pump, dosing units or piston operated application guns.
Sikaflex®-290 DC PRO can be processed
between 5 °C and 35 °C but changes in reactivity as well as application properties need to
be considered. The optimum process temperature (substrates, climate and product) is
between 15 °C and 25 °C.
Removal
Uncured Sikaflex®-290 DC PRO can be removed from tools and equipment with Sika®
Remover-208 or another suitable solvent.
Once cured, the material can only be removed mechanically. Hands and exposed skin
have to be washed immediately using Sika®
Cleaner-350H or a suitable industrial hand
cleaner and water. Do not use solvents on
skin!
FURTHER INFORMATION
The information herein is offered for general
guidance only. Advice on specific applications
is available on request from the Technical Department of Sika Industry.
It is highly recommended using the Sika® Teak
Maintenance System composed of Sika® Teak
C+B and Sika® Teak Oil to preserve the teak
deck.
Copies of the following publications are available on request:
Safety Data Sheets▪
Sika Marine Application Guide▪
Sika Pre-Treatment Chart
▪
For Marine Applications
General Guidelines
▪
Bonding and Sealing with Sikaflex®
PACKAGING INFORMATION
Cartridge
Unipack
Pail
Drum
300 ml
600 ml
1000 ml
23 l
195 l
BASIS OF PRODUCT DATA
All technical data stated in this document are
based on laboratory tests. Actual measured
data may vary due to circumstances beyond
our control.
HEALTH AND SAFETY INFORMATION
User must read the most recent corresponding Safety Data Sheets (SDS) before using any
products. The SDS provides information and
advice on the safe handling, storage and disposal of chemical products and contains physical, ecological, toxicological and other safetyrelated data.
DISCLAIMER
The information, and, in particular, the recommendations relating to the application
and end-use of Sika products, are given in
good faith based on Sika's current knowledge
and experience of the products when properly stored, handled and applied under normal conditions in accordance with Sika's recommendations. In practice, the differences
in materials, substrates and actual site conditions are such that no warranty in respect of
merchantability or of fitness for a particular
purpose, nor any liability arising out of any
legal relationship whatsoever, can be inferred
either from this information, or from any written recommendations, or from any other advice offered. The user of the product must
test the product's suitability for the intended
application and purpose. Sika reserves the
right to change the properties of its products.
The proprietary rights of third parties must be
observed. All orders are accepted subject to
our current terms of sale and delivery. Users
must always refer to the most recent issue of
the local Product Data Sheet for the product
concerned, copies of which will be supplied
on request.
PRODUCT DATA SHEET
Sikaflex®-290 DC PRO
Version 03.01 (04 - 2023), en_GB
012001202904001000
2 /
SIKA LIMITED
Watchmead
Welwyn Garden City
Hertfordshire, AL7 1BQ
Tel: 01707 394444
Web: www.sika.co.uk
Twitter: @SikaLimited
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