Nitozinc Primer constructive solutions

Two component epoxy zincrich primer

Uses Properties

Nitozinc Primer is recommended for priming exposed steel Specific gravity 1.75
reinforcement for use with Fosroc concrete repair mortars. The
Wet film thickness/coat 100 microns
product actively resists corrosion within the confines of the
repair location and avoids the generation of incipient anodes Dry film thickness/coat 40 microns
in immediately adjacent locations.
Adhesive bond strength > 1.5 N/mm 2
Nitozinc Primer is compatible with all Renderoc mortars and with steel (ASTM )
fluid micro concretes.
Pot life : 30 minutes @ 30 oC
Advantages
Application thickness 100 microns (wet)
Anti corrosive - Active 'Zinc-rich' system combats corrosion per coat
by electro chemical means. Drying times @ 20 0C @ 35 0C
Two component product - Easy to mix and use. Touch dry 45 mins 15 mins
Timesaving - Touch dry after 30 to 45 mins. Fully dry/Recoatable 45 minutes to 1 hour.
Excellent adhesion - Exhibits excellent bond strength in Surface drying time @27 0C 20 to 40 mins.
cementitious repairs.
Note : At temperatures below 20 0C, the drying times will be
Description
slower. Conversely, at temperatures above 350C, the drying
times will be faster.
Nitozinc Primer is supplied as a two component system based
on metallic zinc and epoxy resin which on mixing gives a grey Specification clauses
coloured liquid. Steel reinforcement primer
Technical support
Performance specification

Fosroc offers a comprehensive range of high performance, The steel reinforcement primer shall be an epoxy, two
high quality concrete repair and construction products. In component, zinc rich liquid packed and supplied ready to
addition, Fosroc offers technical support service to speci- use. An unbroken 40 microns DFT coating shall be capable
fiers, end-users and contractors, as well as on-site technical of providing’active’ galvanic protection and avoiding the
assistance in locations all over the country. generation of incipient anodes in the immediately adjacent
locations. It shall be of suitable viscosity to enable the coat-
Design Criteria
ing to penetrate into imperfections and pits within the surface
of the structural steel.
One or two coats of Nitozinc Primer are generally required,
dependent largely on the nature and profile of the substrate. The formulation of the primer shall be such that drying occurs
Nitozinc Primer is recoatable generally between 30 minutes to allow the application of the repair mortar after 45 minutes
and one hour after the application of first coat. Application at 350C or after one hour at 200C.
of top coat may also proceed at this time. At elevated tem-
It shall be fully compatible with the reinstatement methods
peratures, the recoatable and overlay times will be reduced.
adopted.
The minimum application temperature for Nitozinc Primer is
100 C. The local Fosroc office may be consulted for further Supplier specification
information.
The steel reinforcement primer shall be Nitozinc Primer,
manufactured by Fosroc and used in accordance with the
manufacturer’s datasheet.

Nitozinc Primer is fully compatible with Fosroc’s reinstatement

techniques.
Nitozinc Primer

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Nitozinc Primer

Application instructions Low temperature working

The minimum application temperature is 10 0 C. The material

Preparation
should not be applied when the substrate and/or air temperature
is 10 0 C and below.
Any corroded steel shall be fully exposed and all loose scale
and corrosion deposits shall be removed. Steel should be Cleaning
cleaned to a bright condition paying particular attention to the
Nitozinc Primer should be removed from tools, equipment and
back of exposed steel bars. Grit-blasting is recommended for
mixers with Nitoflor Sol immediately after use.
this process.
Limitations
Where corrosion has occurred due to the presence of chlorides,
Nitozinc Primer should not be applied when the temperature is
the steel should be high-pressure washed with clean water
below 10 0C . If any doubts arise concerning temperature or ap-
immediately after grit-blasting to remove corrosion products
plication conditions, the local Fosroc office shall be contacted.
from pits and imperfections within its surface.
Estimating
Mixing
Packaging
Both components shall be mixed until a homogenous mixture is
obtained. It is important that both components are intermixed Nitozinc Primer 1 & 5 litre Pack
thoroughly and that no traces of the components remain un-
Nitoflor Sol 5 & 20 litre containers
mixed. A slow speed heavy duty drill fitted with a paddle is
recommended for mixing. Coverage

Application Nitozinc Primer 4 - 5 m 2 / litre

The application of Nitozinc Primer must take place as soon as Note : This coverage figure is theoretical - due to wastage
possible to a dry steel surface after completion of the prepara- factors, variety and nature of possible steel substrates, the
tion work but always within 3 hours. practical coverage figures may be reduced.

One full and unbroken coat of Nitozinc Primer shall be applied Storage
using a suitable brush, making sure the surfaces of the steel
Shelf life
are properly coated. A small brush is generally suitable for
this purpose. It shall be allowed to dry fully before continuing. 6 months if kept in dry store in the original, unopened contain-
If in doubt of having achieved an unbroken coating, a second ers. If stored at high temperature and/or high humidity condi-
application should be made as soon as the first coat is fully tions the shelf life may be reduced.
dry (generally between 30 minutes and one hour)

The primed surfaces should not be left exposed to the ele-

ments for longer than necessary before overcoating. Nitozinc
Primer will, however, protect steel under clean interior exposed
conditions for a period of several months. In non-aggressive
exterior environments, a maximum interval of 14 days will be
tolerated but in industrial and/or marine environments this
interval should be reduced to the practical minimum.

The application of concrete repair materials should proceed

as soon as the Nitozinc Primer is fully dry ( generally 45 min.
to 1 hour - Refer properties).

constructive solutions page 2 of 3

Nitozinc Primer

Precautions Flash points

Health & Safety instructions Nitozinc Primer 16 0C

Nitozinc Primer and Nitoflor Sol should not come in contact Nitoflor Sol 330C
with the skin and eyes, or be swallowed. Adequate ventila- Additional information
tion should be ensured and inhalation of vapours should be
Dekguard S was formerly known as Nitocote Dekguard S. Fos-
avoided. Some people are sensitive to resins, hardeners and
roc manufactures a wide range of products specifically designed
solvents. Hence suitable protective clothing, gloves and eye
for repair and refurbishment of damaged reinforced concrete.
protection shall be worn. If working in confined areas, suitable
This includes hand-placed and spray grade repair mortars,
respiratory protective equipment must be used. The use of
fluid micro - concretes, chemical resistant epoxy mortars and
barrier creams, provide additional skin protection. Incase of
a comprehensive package of protective coatings. In addition,
contact with skin, it shall be rinsed with plenty of water, then
a wide range of complementary products is available. This
cleansed with soap and water. Incase of skin contact with
includes joint sealants, water proofing membranes, grouting,
Nitozinc Primer, it shall be removed immediately with resin
anchoring and specialised flooring materials.
removing cream followed by washing with soap and water.
Solvent should not be used. Incase of contact with eyes, it Fosroc have also produced several educational training videos
shall be rinsed immediately with plenty of clean water and which provide more detail about the mechanisms which cause
medical advice shall be sought immediately. If swallowed, corrosion within reinforced concrete structures and the solutions
medical attention shall be sought immediately - Vomiting which are available to arrest or retard these destructive mecha-
should not be induced. nisms. Further information is available from the publication : “
Fire Concrete Repair and Protection - The Systematic Approach’.

Nitozinc Primer and Nitoflor Sol are flammable. It shall be For further information about products, training videos or pub-
kept away from source of ignition. Smoking is prohibited lications, contact the local Fosroc office.
during handling / application of the product. In the event of
fire, it shall be extinguished with Carbondioxide or foam. Use
of water jet is not recommended.

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 any advice, recommendation specification
or information it may give is accurate and correct, it cannot, because it has no direct or
continuous control over where or how its products are applied, accept any liability either
Fosroc Chemicals directly or indirectly arising from the use of its products whether or not in accordance with
any advice, specification, recommendation or information given by it.
(India) Pvt. Ltd.
Head Office telephone fax e-mail
“Sapthagiri Palace”, No.38,
II & III Floor, 12th Cross, ++91 80-42521900 ++91 80-23551510 enquiryindia@fosroc.com
CBI Road, Ganganagar North,
Bangalore 560 032

Regional Offices

Bangalore Mumbai Noida Kolkata

“Sapthagiri Palace”, No. 38 1401/1402, 14th Floor, D-166 Sector 10 304, Jodhpur Park
II & III Floor, 12th Cross, A-Wing’The Great Eastern Summit’ Noida, Kolkata 700 068
CBI Road, Ganganagar North, Sector-15, CBD, Belapur UP 201 301 Ph:033-65343188
Bangalore 560 032. Navi Mumbai 400 614 Ph:0120-4270620 Fax: 033-2499-0280
Ph:080-42521900 Ph: 022 -43406800-04
Fax : 080-23551510

www.fosroc.com
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