Nitoseal 105*
constructive solutions
Multi-purpose acrylic joint sealant
Uses
Properties
As an internally or externally applied joint sealant in wide
range of applications such as:
Specific gravity
: 1.4
Movement
accommodation factor : 12.5%
! Around window and door frame surrounds
Skinning time
(35C/50% RH)
: approx. 30-60 mins.
! Curtain walling construction
! Brickwork
Shrinkage
: approx. 15%
Cure time
: 1-3 weeks depending on climate
and thickness
! Precast construction
Service temperature
: -20C to 80C
! Sealing composite and lightweight cladding panels
Instructions for use
Advantages
! Does not need priming
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.
! Good weather resistance
For glass surfaces, Fosroc recommends Nitoseal 130*.
! Blockwork
! One component, ready to use, simple to apply
! Can be overcoated
! Will resist water contact
! Excellent adhesion to most substrates
! Locally formulated for use in Middle East conditions
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
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
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*
Joint preparation
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.
Nitoseal 105*
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
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/0368/01/B
