Anuzinc 235 EP
Epoxy Zinc Rich Coating
Product Description
Anuzinc 235 EP is
an epoxy resin based high performance coating formulated for extreme marine and
industrial environments and is highly suitable for priming iron and steel
surfaces or touching up damaged zinc coatings on galvanized or zinc sprayed
surfaces.
Features and Benefits
Easy
to apply and can be applied via airless spray and conventional spray. Only
small areas can be brushed.
Can
be applied to blast cleaned steel without problems of cracking and flaking.
Contains
high amount of metallic zinc in the dry film to ensure contact between
metallic zinc and steel in a corrosive environment, that results in the
steel being protected by sacrificial action of zinc. In other words, zinc
becomes anode in the corrosion cell and the steel is cathodically protected.
Does
not rely on humidity, oxygen or temperature to dry properly.
Can
be used as the primer for the surfaces that require spot welding.
Has
no deterious effect on normal cutting and welding operations.
Extremely
tough and abrasion resistant.
Offers
excellent resistance to corrosion both as pre-construction primer and as
top-coated primer in the coating system.
Ideal
for use as a field primer on interior and exterior steel as part of a system
to be top-coated with epoxy and polyurethane topcoats.
A
rust inhibitive primer over iron and steel and protects steel from
atmospheric corrosion.
Provides
much higher degree of protection than conventional primers in severe
corrosive conditions.
Excellent
resistance to corrosion, natural weathering, salt spray, impact, humidity
etc.
Recommended uses
Steel structures |
Marine and Shore Installations |
Areas exposed to chemical fumes, fresh and salt water. |
Structural steel for piping for petroleum and chemical industries. |
Ship Hulls |
Oil Drilling Rigs and Platforms |
Steel used in stocks and wharves. |
Barges and small watercrafrs. |
Blasted Steel Surfaces |
Shop and field application |
Cargo and ballast tanks |
Shipbuilding Industry |
Surface Preparation:
Steel - The
surface should be blast cleaned to SSPC-SP 10-63T or NACE No. 2
i.e. loose rust and scales, dirt, grease, oil, paint, wax, weak oxide films and
other contaminants should be removed. Blast cleaning to SSPC-SP 5-63
or NACE No. 1 is recommended where heavy corrosive conditions
exist or coating is required to be immersed. That means a surface with a grey
metallic colour, slightly roughened to form a suitable anchor pattern for
coatings. This surface is free of all oil, grease, dirt, mill scale, rust,
corrosion products, oxides, paint and other foreign matter. Hand or power tool
cleaning is not effective. Remove all the contaminants. Apply one coat of Anuzinc
235 EP. It can be over-coated with Durapoxy 200
Epoxy Enamel,
Anuthane Enamel
Polyurethane
or Monocoat Enamel
Polyurethane
and Anuchlor 555 LB
Chlorinated Rubber Enamel.
Priming:
It is recommended that priming should be
carried out within 4 hours if inside a building, but if exposed to weather, the
steel must be coated immediately after blasting. Should it become necessary to
leave cleaned surfaces unpainted overnight, such surfaces must be re-cleaned
before painting. Paint only on dry surfaces. Do not paint exterior surfaces in
damp weather or when the temperature is less than 10° C. The dry film thickness (DFT) should not be less than the DFT
specified. It is recommended that one coat of Anuzinc
235 EP at 25 microns minimum DFT should be applied on shot blasted
steel whereas one coat at 50 microns DFT is required for grit blasted steel for
best protection. More coats can be applied as per requirements.
Over-coating:
In common with epoxy coatings generally, over-coating should be carried out within 24-48 hours or left for 7 days when the coating has cured completely. However, Anuzinc 235 EP can be over-coated after 16 hours. Care must be taken while over-coating the primed surface. Oil, grease, dirt etc. should be removed by degreasing the surface with degreasing solvents like tri-chloroethylene or xylene and subsequently washed off with fresh water. The surface should be allowed to dry before painting.
TECHNICAL DATA
Name/Description |
Anuzinc 235 EP |
Type |
Two pack cold cured |
Composition |
Epoxy / Metallic Zinc |
Colour |
Grey |
Finish |
Smooth and Matt |
Volume Solids (mixed) |
38± 3% |
Mixing Ratio |
Base : Hardener 3 : 1 by volume |
Pot Life @ 30° C |
6 to 8 hours |
Dry film thickness per coat |
25 to 50 microns |
Coverage-(theoretical-no loss) |
15.2 to 7.6 m² /litre |
Serviceability @ 30° C Dry to touch Hard Dry Re-coat Full Cure |
30 minutes 16 hours 16-24 hours 7 days |
Induction (Sweat-in-time) @ 30° C |
30 minutes |
Dry heat resistance |
150° C |
Relative Humidity |
90% |
Application Temperature -minimum -maximum |
10°
C 35° C |
Solvent/Thinner |
Anusol - ETP Thinner |
Flash Point |
25° C |
Packing |
4 & 20 litres |
Shelf Life |
6 months |
Precaution |
Flammable. Keep away from heat and open flame. Maintain good ventilation and avoid breathing vapours. |
Notes
The contents should be stirred thoroughly prior to use.
After mixing Base and Hardener in recommended proportions, allow for 30
minutes induction period or sweat-in-time (maturing) before application.
When overcoating the weathered or aged
Anuzinc
235 EP, ensure that the coating is fully free from all contamination
such as oil, dust, grease, stains etc.
This coating should be thinned with Anusol - ETP Epoxy Thinner. The use of alternative thinners can inhibit the curing mechanism of the coating.
Disclaimer:
Information provided herein is based upon
tests believed to be reliable. It does not guarantee the results to be obtained.
Nor does it make any express and implied warranty or merchantability, or fitness
for a particular purpose concerning the effects or results of such case. It does
not release you from the obligation to test the products supplied by us as to
their suitability for the intended uses. The application, surface preparation
and use of the products are beyond our control and, therefore, entirely your own
responsibility.