Nitoseal MS600*
constructive solutions
One part, civil engineering sealant for immersed conditions
Uses
Properties
Nitoseal MS600 is suitable for sealing movement joints in
buildings and civil engineering structures including joints that
will be subject to intermittent or permanent immersion.
Form
Smooth, non-slumping paste
Solids content
100%
Colour
Grey, Portland stone
For other colours contact
Fosroc for further Information
25% butt joints
50% lap joints
Sea walls
MAF (Movement
Accommodation
Factor
Basements
Skinning time at
Subways
20 C / 50% RH
30 minutes
Parapets
Cure rate at
20 C / 50% RH
24 hours: 3mm
48 hours: 6mm
72 hours: 8mm
Application
Temperature
5C to 50C
Dry : 30C to +80C
Wet: up to 60C
Typical applications include:
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Reservoirs
Sewage tanks
Bridges
Superstructures
Swimming pools
Advantages
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Approved for use in contact with potable water
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Hardness shoreA :
(@ 20C)
32
Chemical
resistance
Resistant to occasional spillage
many chemicals.
Biological
resistance
Nitoseal MS600 has been
evaluated in microbiologically
active situations and has been
shown to have resistance to
aerobic and anaerobic conditions
High resistance to ageing, reduces physical damage due
to climatic extremes
UV resistance
Excellent
Single component yet fast rate of cure
Standards compliance
Can be applied to damp substrates
Nitoseal MS600 is approved for use in contact with potable
water and meets the requirements of BS6920.
Meets key international standards
Resistant to aerobic and anaerobic bacteriological attack
Exhibits excellent water resistance
Excellent resistance to dilute acids and alkalis
Cures to a tough, elastic rubber seal
Accommodates continuous and pronounced cyclic
movement
Isocyanate free technology
Description
Nitoseal MS600 is a one part medium modulus sealant based
on hybrid silyl modified polyether technology. It has a fast rate
of cure and forms a tough, highly durable and water resistant
elastomer. Conforms to the DWI Water Quality Regulations
25(1)(b) for products having a small surface area in contact
with water for public supply.
Nitoseal MS600*
Service
temperature
Conforms with the performance criteria of BS4254 (1991) and
ASTM C920-94:type S, grade NS, Class 25 and ASTM C793
after accelerated weathering.
Nitoseal MS a name youll
want to stick with.
Nitoseal MS600*
Design criteria
Priming
Nitoseal MS600 should be applied to joints between 5 and
35mm wide. Joints which are expected to experience cyclic
movements should be designed to an optimum width : depth
ratio of 2:1, subject to the overriding recommended minimum
sealant depths set out below: 5mm for metals, glass and other
non-porous surfaces; 8mm for all porous surfaces; 20mm for
joints subject to hydrostatic pressure.
Fosroc Primer MS2 is required for joints that are to be
intermittently or permanently immersed or where the substrate
is likely to satuated.
To ensure that the sealant remains within its stated movement
capacity (25% MAF), sealing slot widths should be designed in
accordance with the recommendations of BS 6093.1993. The
Movement Accommodation Factor is a figure quoted indicating
the ability of a sealant to accommodate joint movement
throughout the service life of that sealant, expressed as a
percentage of the joint width at time of sealing.
To calculate the theoretical minimum joint width knowing the
expected maximum working movement of the joint:
W=
M __ + M
MAF/100
W = Joint width
M = Expected maximum working movement of joint
MAF = Movement Accommodation Factor of that sealant
Instructions to use
Preparation
When using a primer, empty the entire contents of the hardener
tin into the base tin and replace the base tin lid. Mix thoroughly
by shaking for at least 2 minutes. Prime the joint face using a
clean, dry brush. Avoid over application of primer causing
puddles in the bottom of the joint.
Nitoseal MS600 should be applied between 30 minutes and 2
hours after priming.
If a joint is left unsealed for more than 2 hours, the primer should
be removed by grit blasting or grinding and the joint re-primed.
Do not split packs of Fosroc Primer MS2.
Application and finishing
Cut the end off the sachet and place in the Fosroc GX gun. Fit
the nozzle and cut at 45 degrees at a suitable size for sealing
the joint.
Extrude the sealant firmly in to the joint. Tool flush within
5 minutes of application to ensure good contact between the
sealant and the substrate.
Cleaning
Joint surfaces must be clean, dry and free from frost. Remove
all dirt, laitance, loose material and foreign matter. Remove all
rust, scale and protective lacquers from metal surfaces.
Removal can be achieved by rigorous wire brushing, grinding
or grit blasting.
Joints in concrete should preferably be sawn. After sawing, all
saw slurry must be flushed away and the joint allowed to dry.
When resealing, the existing sealant should be removed from
the joint and the arris cleaned back to sound clean concrete. All
debris should be removed.
Any expansion joint filler must be checked to ensure it is tightly
packed and no gaps or voids exist at the base of the sealing slot
before positioning a bond breaker.
Clean tools immediately after use with Fosroc Equipment
Cleaner. Clean hands with a proprietary hand cleaner.
Limitations
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Should not be applied at temperatures below 5oC
Should be fully cured prior to immersion.
Not suitable for contact with bituminous materials
Not suitable for contact with solvents, oil or petrol
Whilst Nitoseal MS600 has excellent adhesion to many
types of residual sealant, its use should not be considered
a substitute for a good standard of joint preparation
The use of a bond breaker is not required in expansion joints
containing cellular polyethylene joint filler such as Hydrocell XL
or Expandafoam. For construction or contraction joints a bond
breaker tape or back-up strip should be used.
Where a particularly neat finish is required, mask the face
edges of the joint before sealing and remove immediately after
tooling is completed.
Nitoseal MS600 - Page 2 of 4
Nitoseal MS600*
Precautions
Estimating
Health and safety
Supply
Nitoseal MS600
:
Fosroc Primer MS2 :
10 no x 600ml sachets per box
200 ml packs
Guide to quantities
Nitoseal MS600 is considered safe in normal use. However,
as with any material, good hygiene practices should be followed
i.e. keep out of eyes, do not consume, keep away from children
and pets and wash hands thoroughly after use.
Storage
Joint size
6 x 10
Litres per
metre run
0.06
Metre run per
600 ml sachet
10.00
12 x 10
0.12
5.00
20 x 20
0.40
1.50
25 x 12
0.30
2.00
30 x 15
0.45
1.33
Shelf life 12 months.
Storage conditions
Store in original packaging in cool, dry conditions. Storage
outside of these conditions may reduce shelf life.
0.2 litres of Fosroc Primer MS2 will be sufficient for 25m of joint.
No allowance has been made for joint size or wastage.
Nitoseal MS600 - Page 3 of 4
Nitoseal MS600*
Additional information
Fosroc manufactures a wide range of complementary
products which include :
waterproofing membranes & waterstops
joint sealants & filler boards
cementitious & epoxy grouts
specialised flooring materials
Fosroc additionally offers a comprehensive package of
products specifically designed for the repair and
refurbishment of damaged concrete. Fosrocs Systematic
Approach to concrete repair features the following :
hand-placed repair mortars
spray grade repair mortars
fluid micro-concretes
chemically resistant epoxy mortars
anti-carbonation/anti-chloride protective coatings
chemical and abrasion resistant coatings
For further information on any of the above, please consult
your local Fosroc office - as below.
* Denotes the trademark of Fosroc International Limited
See separate data sheet
Important note
Fosroc products are guaranteed against defective materials and manufacture and are sold subject to its standard
Conditions for the Supply of Goods and Service. All Fosroc datasheets are updated on a regular basis. It is the users
responsibility to obtain the recent version. Refer to www.fosroc.com.
Al Gurg Fosroc
LLC
Post Box 657, Dubai
United Arab Emirates
www.fosroc.com
Head Office
telephone: (+9714) 2039699
fax: (+9714) 2859649
email: agf@fosroc.com
Regional offices
Abu Dhabi, Al Gurg Fosroc
Bahrain, YBA Kanoo
telephone: 673 1779
telephone: 17735454
fax: 673 1449
fax: 17732828
email: abudhabi@fosroc.com
email: bahrain@fosroc.com
Kuwait, Boodai
Oman, Al Amana
Qatar, Tadmur
telephone: 4817618
telephone: 24815080
telephone: 4500607
fax: 4832124
fax: 24817554
fax: 4500543
email: kuwait@fosroc.com
email: oman@fosroc.com
email: qatar@fosroc.com
UAE/0497/03/A
