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Temazinc 77

A two-component, polyamide-cured zinc-rich epoxy
paint for bridges, cranes, equipment and steel structures working in harsh conditions.

The paint is solvent-borne
The coverage of the paint on rough surfaces
6,5
m2/l
The coverage of the paint on smooth surfaces
13
m2/l

Two-component zinc-rich epoxy paint

Temazinc 77 is a epoxy paint containing zinc according to the requirements of ISO 12944-5. Paint system with zinc-rich primer provides the most durable anti-corrosive solution, see functional principles below.

For paint systems in severe environments

Temazinc 77 is a primer for epoxy, polyurethane, acrylic and chlorinated rubber systems used for steel surfaces exposed to harsh climatic condition. Can be used without topcoat.

Mechanism by which zinc-rich primer Temazinc protects steel

The zinc-rich epoxy paint fill any scratches or damage points in the paint layer, preventing direct contact between electrolyte and steel, which would otherwise result in corrosion.
This reaction continues as long as there is enough zinc in the primer.

Anode reaction: Zn -> Zn + 2e
Cathode reaction: H2O + ½O2 + 2e -> 2OH-


Temazinc 77 is mainly used for




Paint and coating systems for metal industries


PRODUCT DATA SHEET
22.02.2010

Temazinc 77 - Zinc-rich epoxy paint

 
Temazinc 77
DESCRIPTION A two-component, polyamide-cured zinc-rich epoxy paint.
PRODUCT FEATURES Used as a primer in epoxy, polyurethane, acrylic and chlorinated rubber systems for steel surfaces exposed to severe climatic conditions. Can be used without a topcoat on surfaces exposed to weathering.
Recommended uses Recommended for bridges, cranes and steel frameworks as well as steelwork and equipment in the forest and chemical industries, such as tubular bridges, conveyors etc.

TECHNICAL DATA
Features Offers cathodic protection of steel. The zinc content fulfils the requirements of ISO 12944-5.
Colour Range Grey.
Gloss groups Matt
Coverage

Recommended film thicknesses

Theoretical coverage

dry

wet

 

40 µm

75 µm

13.0 m2/l

80 µm

155 µm

6.5 m2/l


Practical coverage depends on the application method, painting conditions and the shape and roughness of the surface to be coated.
Thinner 1031
Mixing ratio Base 3 parts by volume 008 7405
Hardener 1 part by volume 008 7440
Application method By airless spray or brush.
Pot-life (+23°C) 16 hours
Drying times

DFT 40 µm

+ 5 ºC

+ 10 ºC

+ 23 ºC

+ 35 ºC

Dust dry, after

50 min

20 min

10 min

5 min

Touch dry, after

2 h

1 h

30 min

15 min

Recoatable, after

5 h

3 h

1 h

30 min


Drying and recoating times are related to the film thickness, temperature, the relative humidity of the air and ventilation.
Solids volume 52 ± 2 % volume (ISO 3233)
Density 2.0 kg / l (mixed)
Product code 008 7405

APPLICATION DETAILS
Application conditions All surfaces must be dry. The temperature of the ambient air, surface or paint should not fall below +5 ºC during application and drying. Relative humidity should not exceed 80 %. The surface temperature of the steel should remain at least 3 ºC above the dew point.
Preparation Oil, grease, salts and dirt are removed by appropriate means. (ISO 12944-4)

Steel surfaces: Blast clean to grade Sa2½. (ISO 8501-1)
Finishing Temacoat GPL-S Primer, Temacoat GF Primer, Temacoat HB Primer, Temacoat GPL-S MIO, Temacoat GS 50, Temacoat RM 40, Temacoat HB 30, Temacoat SPA, Temabond, Temachlor 40, Temacryl AR 50 and Temanyl MS Primer.
Painting By airless spray or brush. Agitate during application. Depending on the application method the paint can be thinned 0 - 10 % by volume. Airless spray nozzle tip 0.015" - 0.021" and nozzle pressure 120 - 180 bar. Spray angle shall be chosen according to the shape of the object. Sharp edges, corners, weld seams and other areas difficult to cover properly by spray application should be coated by brush before the spray application. At brush application the paint should be thinned according to the circumstancies.
Mixing of components First stir base and hardener separately. The correct proportions of base and hardener must be mixed thoroughly before use. Use Temaspeed Squirrel Mixer for mixing.
Cleaning of tools Thinner 1031.
EU VOC 2004/42/EC-limit value The Volatile Organic Compounds amount is 480 g/litre of paint.
VOC content of the paint mixture (thinned 5 % by volume) is 495g/l.
Only for industrial use.

HEALTH AND SAFETY LABELLING
according to Regulation (EC) No. 1272/2008
Containers are provided with safety labels, which should be observed. Further information about hazardous influences and protection are detailed in individual health and safety data sheets. A health and safety data sheet is available on request from Tikkurila Oyj.
Safety data sheetTemazinc 77
Thinner safety data sheetTemazinc 77
Hardener safety data sheetTemazinc 77
 
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Counter for metal coatings

Tikkurila offers wide range of paints and coatings for metal surfaces for different conditions, applications and needs. Tikkurila cost comparison program calculates costs and helps to find the best solution for your project.

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