Nitoseal 105*
Multi-purpose acrylic joint sealant
Uses
As an internally or externally applied joint sealant in wide range
of applications such as:
n Around window and door frame surrounds
n Curtain walling construction
n Brickwork
n Blockwork
Properties
Specific gravity
: 1.4
Movement
accommodation factor : 12.5%
Skinning time
(35C/50% RH)
approx. 30-60 mins.
Shrinkage
approx. 15%
Cure time
1-3 weeks depending on climate
and thickness
Service temperature
: -20C to 80C
n Precast construction
n Sealing composite and lightweight cladding panels
Instructions for use
Advantages
n One component, ready to use, simple to apply
n Can be overcoated
n Does not need priming
n Good weather resistance
n Will resist water contact
n Excellent adhesion to most substrates
For glass surfaces, Fosroc recommends Nitoseal 130*.
n Locally formulated for use in Middle East conditions
Joint preparation
Description
Nitoseal 105 is an acrylic emulsion based joint sealant which
cures by loss of carrier to form a flexible seal. It is applied
simply from the cartridge and can be finished neatly using
suitable tooling. When cured it will accommodate small
thermal, shrinkage and moisture movements. It can be
overcoated with most gloss or emulsion paints.
Design Criteria
Joints should be designed so that movement due to shrinkage
and thermal change does not exceed the 12.5% movement
accommodation factor related to the joint width.
Joint Width (mm)
Sealant Depth (mm)
5(min) - 10
11 - 20
21 - 25 (max)
As joint width
10
12 - 15
Sealant depth must never exceed joint width.
Nitoseal 105
Nitoseal 105 has excellent adhesion to most substrates used
in construction, particularly concrete, mortar, block work,
wood, anodised bronze. It also bonds very well to some
painted surfaces, but it is advisable to carry out a site trial
first to assess the suitability of the particular coating in
question.
Joint surfaces must be clean and dry. Remove all dust and
laitance by grit blasting, grinding or rigorous wire brushing.
Blow all joints clean using dry, oil free compressed air.
Where necessary to achieve the correct joint profile Expancell*
backing cord should be used. Where backing cord is not
used place Nitoseal Debonding Tape* in base of joint.
Where a neat finish is required, masking tape should be applied
down each side of the joint prior to the start of the sealant
works, it should be removed immediately after tooling the
sealant.
Priming
Priming is not generally required with this material, although
a 50:50 solution of Nitoseal 105 with water, or alternatively
Nitobond AR* may be used to seal very porous surfaces.
Application
Nitoseal 105 can be applied by hand or air operated caulking
gun. Ensure that the sealant is pushed firmly in to the joint to
give complete wetting of the surface. Any tooling of the
sealant surface must be carried out immediately using a joint
shaping tool soaked in white spirit, or a wet sponge. If required
the edges of the joint can be protected with masking tape - if
this is done ensure that the tape is removed immediately after
tooling.
Cleaning
Estimating
Uncured Nitoseal 105 can be cleaned off with water. Cured
sealant can be removed mechanically or by soaking in MEK.
Supply
Nitoseal 105
Overcoating
The sealant can be overcoated with emulsion paints the day
after application. For spirit based paints it is advisable to
allow several days for the sealant to cure. If a quicker
overcoating is required, a small area should be tried first. It
should be noted that although most paints adhere well to
Nitoseal 105, a rigid coating will not be able to take the same
movements as the sealant and may exhibit cracking.
310 ml cartridge
(24 cartridges per carton)
Guide to sealant quantities
Number of cartridges required =
Joint width (mm) x sealant depth (mm) x joint length (m)
310
A further amount should be allowed for wastage
Storage
Limitations
Nitoseal 105 is not recommended for joints subject to water
immersion.
Do not apply at temperatures below 5C.
Twelve months in original containers stored in cool dry
conditions i.e. not exceeding 25C. Storage above this
temperature will reduce storage life.
Precautions
Technical support
Health and safety
Fosroc offers a comprehensive range of high performance,
high quality repair, maintenance and construction products.
In addition, Fosroc offers a technical support package to
specifiers, end-users and contractors, as well as on-site
technical assistance in locations all over the world.
Avoid contact with eyes and skin. In the event of eye contact
wash thoroughly with clean cold water.
* Denotes the trademark of Fosroc International Limited
REGIONAL SALES OFFICES IN :
Al Gurg Fosroc LLC
P. O. Box 657
Dubai
United Arab Emirates
TEL : (04) 285 8606
FAX : (04) 285 9649
See separate data sheet
DUBAI
ABU DHABI
BAHRAIN
KUWAIT
OMAN
QATAR
Al Gurg Fosroc
Al Gurg Fosroc
YBA Kanoo
Boodai
GETCO
Tadmur
TEL : 285 8787
TEL : 673 1779
TEL : 738200
TEL : 481 7618
TEL : 771 5080
TEL : 441 3628
FAX : 285 2023
FAX : 673 1449
FAX : 732828
FAX : 483 2124
FAX : 771 7554
FAX : 444 0812
Important note
Fosroc products are guaranteed against defective materials and manufacture and are sold subject to its standard terms and conditions of sale, copies of
which may be obtained on request. Whilst Fosroc endeavours to ensure that the technical information on this data sheet is correct at the time of printing,
it is the customers responsibility to satisfy himself, by checking with the company that this information is still current at the time of use, that the product is
suitable for the intended application, and that the actual conditions of use are in accordance with those recommended. Because Fosroc has no control over
the conditions of use of its products, all recommendations or suggestions regarding the use of these products are made without guarantee.
www.fosrocgulf.com
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