PPG SigmaZinc 102 HS is a two-component, high solids polyamide cured zinc rich epoxy primer.

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• Features & Benefits
• Product Specification
• Film Thickness Range
• Drying Times
• Surface Preparation
• Application Methods
• Product Notes
• Health & Safety

Features & Benefits

• Very good primer for systems with high solids epoxy buildcoats
• Can also be used as a system primer for various other paint systems
• Good anticorrosive properties
• Quick-drying, can be overcoated after a short interval
• Complies with SSPC-Paint 20

Product Specification

Film Thickness Range

Drying Times

Notes:

• SIGMAZINC 102 HS can be applied at temperatures between 5°C (41°F) and 10°C (50°F), but the curing rate will be very slow
• For such applications alternative zinc rich primers are recommended: SIGMAZINC 19 or SIGMAFAST 302
• Adequate ventilation must be maintained during application and curing

Notes:

• Zinc rich primers can form zinc salts on the surface; preferably they should not be weathered for long periods before overcoating
• An interval of several months can be allowed under clean interior exposure conditions
• In industrial or marine conditions or if a long recoat interval is required, it is recommended to apply a suitable sealer direct after the minimum recoating interval
• Before overcoating any visible surface contamination must be removed by high-pressure water cleaning, sand washing, sweep blasting or mechanical cleaning

Surface Preparation

Immersion Conditions

• Steel; shot blast cleaned to ISO-Sa2½, blasting profile 40 – 70 μm (1.6 – 2.8 mils).
• Steel with approved zinc silicate shop primer; sweep blasted to SPSS-Ss.

Atmospheric Exposure Conditions

• Steel; blast cleaned to ISO-Sa2½, blasting profile 40 – 70 μm (1.6 – 2.8 mils).
• Steel with approved zinc silicate shop primer; sweep blasted to SPSS-Ss or power tool cleaned to SPSS-Pt3.

Substrate Temperature and Application Conditions

• Substrate temperature during application and curing should be above 5°C (41°F).
• Substrate temperature during application and curing should be at least 3°C (5°F) above dew point.

Application Methods

Mixing Ratio By Volume: Base To Hardener 80:20 (4:1):

• The temperature of the mixed base and hardener should preferably be above 15°C (59°F), otherwise extra thinner may be required to obtain application viscosity.
• Adding too much thinner results in reduced sag resistance and slower cure.
• Thinner should be added after mixing the components.

Induction Time:

• None

Pot Life:

• 8 hours

Air Spray:

• Recommended Thinner: THINNER 91-92
• Nozzle Orifice: 1.8 – 2.2 mm (approx. 0.070 – 0.087 in)
• Nozzle Pressure: 0.3 - 0.6 MPa (approx. 3 - 6 bar; 44 - 87 p.s.i.)

Note: In case of using 45:1 airless spray equipment, the paint must be heated to approximately 30°C (86°F) in order to obtain the right application viscosity.

Brush/Roller:

• For stripe coating and spot repair only.

Airless Spray:

• Recommended Thinner: THINNER 91-92
• Volume Of Thinner: 0 - 10%, depending on required thickness and application conditions.
• Nozzle Orifice: Approx. 0.43 – 0.48 mm (0.017 – 0.019 in)
• Nozzle Pressure: 15.0 MPa (approx. 150 bar; 2176 p.s.i.)

Brush/Roller:

• Thinner: THINNER 91-92
• Volume Of Thinner: 0 – 10%

Cleaning Solvent:

• THINNER 90-53

Product Notes

Health & Safety

• This is a solvent-borne paint and care should be taken to avoid inhalation of spray mist or vapor, as well as contact between the wet paint and exposed skin or eyes.
• For further information please see the safety data sheets in the attachments section above.

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