Product Data Sheet Safety Data Sheet Show all documents

SikaCor® EG Phosphat

High-Solid epoxy zinc phosphate primer

SikaCor® EG Phosphat is a 2-pack primer based on epoxy resin containing zinc phosphate.
Low solvent content according to Protective Coatings Directive of German Paint Industry Association
(VdL-RL 04).

Combined with 2-pack epoxy intermediate coats and 2-pack PUR top coats:
  • Very good corrosion protection
  • Excellent chemical, weather and colour stability
  • Tough elastic and hard but not brittling
  • Insensitive against shock and impact
Product Data Sheet Safety Data Sheet Show all documents

Usage

Designed as primer for steel surfaces exposed to atmospheric conditions. In combination with 2-pack intermediate and top coats SikaCor® EG Phosphat is a mechanical resistant coating system for rural, urban, industry and sea atmosphere according to ISO 12944-5. Suitable as welding primer in 20 μm thickness. Test report on request.  

Advantages

Combined with 2-pack epoxy intermediate coats and 2-pack PUR top coats:
  • Very good corrosion protection
  • Excellent chemical, weather and colour stability
  • Tough elastic and hard but not brittling
  • Insensitive against shock and impact

Packaging

SikaCor® EG Phosphat30 kg, 15 kg and 3kg net.
Sika® Thinner EG25 l, 10 l and 3 l
SikaCor® Cleaner160 l and 25 l

Colour

Sand yellow approx. RAL 1002, mat.-no. 687.02

Redbrown approx. RAL 8012, mat.-no. 687.06

Zinc grey approx. RAL 7005

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • Approved according to German standard ‘TL/TP-KOR-Stahlbauten, Blatt 87'.
Product Information

Shelf life

3 years

Storage conditions

In originally sealed containers in a cool and dry environment.

Density

~1.6 kg/l

Solid content

~62 % by volume

~80 % by weight

 
Technical Information

Chemical resistance

Combined with 2-pack epoxy intermediate coats and 2-pack PUR top coats:

Weathering, water, sewage, seawater, smoke gas, de-icing salts, acid and lye vapours, oils, grease and short term exposure to fuels and solvents.

Temperature resistance

Dry heat up to + 150°C, short term up to + 200°C
In case of higher temperatures please contact us.

Application

Application Information

Mixing ratio

Components A : B

By weight

90 : 10

By volume

4.9 : 1

Thinner

Sika® Thinner EG

If necessary max. 5% Sika® Thinner EG may be added to adapt the viscosity.

In case of using SikaCor® EG Phosphat as welding shop primer add approx. 20% b.w. Sika® Thinner EG.

Material temperature

Min. + 5°C

Relative air humidity

Max. 85 %, except the surface temperature is significantly higher than the dew point temperature, it shall be at least 3 K above dew point.

Surface temperature

Min. + 5°C

Pot Life

At + 10°C

~12 h

At + 20°C

~8 h

At + 30°C

~5 h

Drying stage 6

Dry film thickness 80 μm

+ 5°C after

10 h

+ 10°C after7 h
+ 20°C after

3.5 h

+ 40°C after25 min
+ 80°C after15 min

Waiting time to overcoating

Min. Until drying stage 6 is achieved.
Max. 1 year
In case of longer waiting times please contact us.
Make sure that all contamination is removed before overcoating with topcoats (see page 3 surface preparation).

Drying time

Final drying time
Depending on film thickness and temperature full hardness is achieved after 1 - 2 weeks. Tests of the completed coating system should only be carried out after final curing.
Consumption

Consumption

Theoretical material-consumption/VOC without loss for medium dry film thickness:

Dry film thickness

20 μm80 μm
Wet film thickness30 μm130 μm
Consumption

~0.050 kg/m2

~0.205 kg/m2
VOC~10 g/m2~41 g/m2

With SikaCor® EG Phosphat up to 120 μm dry film thickness per application can be achieved by airless spraying.
Application steps

SURFACE PREPARATION

Steel:
Blast cleaning to Sa 2 ½ according to ISO 12944-4.
Free from dirt, oil and grease.


For contaminated and weathered surfaces we recommend to clean with SikaCor® Wash.

MIXING

Stir component A very thoroughly using an electric mixer (start slowly, then increase up to approx. 300 rpm). Add component B carefully and mix both components very thoroughly (including sides and bottom of the container). Mix for at least 3 minutes until a homogeneous mixture is achieved. Fill mixed material into clean container and mix again shortly as described above. During mixing and handling of the materials always wear protective goggles, suitable gloves and other protective clothings.

APPLICATION

The method of application has a major effect on achieving uniform thickness and appearance. Spray application will give the best results. The indicated dry film thickness is easily achieved by airless spray. Adding solvents reduces the sag resistance and the dry film thickness. In case of application by roller or brush, additional applications may become necessary to achieve the required coating thickness, depending on type of construction, site conditions, colour shade etc.

 

Prior to major coating operations a test application on site may be useful to ensure the selected application method will provide the requested results.

By brush and roller


Conventional high pressure spraying:

  • Nozzle size 1.5 - 2.5 mm
  • Pressure 3 - 5 bar
  • Oil and water trap is compulsory


Airless-spraying:

  • Pressure min. 180 bar
  • Nozzle size 0.38 - 0.53 mm (0.015 - 0.021 inch)
  • Spraying angle 40°- 80°

CLEANING OF EQUIPMENT

SikaCor® Cleaner

Documents