SIGMAZINC 102 G Two-component High-solids Polyamide-cured Epoxy Zinc-rich Primer

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Introduction

A two-component, high-solids, polyamide-cured epoxy zinc-rich primer.

Key properties

• High-build epoxy zinc-rich primer
• Used as a primer in various coating systems.
• Fast drying, allowing the subsequent coat to be applied within a short time.
• Complies with the Level 3 zinc dust content in the dry film requirements of SSPC Paint 20

Colour and gloss

• Grey, red-grey.

Basic data 20 °C (68 °F)

Parameters after mixing

Maximum 236.0 g/L (approx. 2.0 lb/gal) (theoretical calculated value).

Maximum time: 3 months.

Curing agent: at least 12 months; store in a dry and cool environment.

Notes

• See the supplementary data sheet — theoretical spreading rate versus dry film thickness table.
• See supplementary parameters — recoat interval table.
• See supplementary parameters table — curing time table.

Recommended substrate condition and temperature

Immersion environment

• Bare steel: abrasive blast clean to Sa 2½ (ISO 8501-1), with surface roughness 40–70 µm (1.6–2.8 mils).
• On steel surfaces shot-blast pre-treated and coated with confirmed compatible inorganic zinc silicate shop primer, only sweep blasting to grade Ss of the SPSS standard is required.

Atmospheric exposure environment

• Steel: blast clean to ISO Sa 2½, blast profile 40–70 µm (1.6–2.8 mil)
• Surfaces of inorganic zinc silicate shop primer confirmed compatible: sweep blast to the Ss grade of the SSPC standard, or power-tool clean to the Pt3 grade of the SSPC standard.

Substrate temperature and application conditions

• During application and curing, the substrate temperature should be above 5 °C (41 °F)
• During application and curing, the substrate temperature must be at least 3 °C (5 °F) above the dew point.

Instructions for use

Mixing ratio by volume: base : curing agent = 3:1

• Before application, raise the temperature of the base, curing agent or mixed paint to above 15 °C (59 °F); otherwise, additional thinner may be required to adjust the paint viscosity to a suitable application state.
• Excessive thinning may reduce the sag resistance of the wet film, slow hard drying and even reduce strength.
• The thinner should be added after the two components are mixed.

Air spray

Airless spray (single-feed pump)

Brush/roller

Cleaning solvent

• THINNER 90-53

Supplementary parameters

Film thickness and theoretical spreading rate

Recoat time for a coating at 100 µm (4.0 mils) dry film thickness

Notes

• Zinc salts form on zinc-rich primer surfaces; before recoating, avoid prolonged outdoor exposure of the coating.
• Before coating, surface cleaning may be carried out by high-pressure water washing, wet blasting, abrasive sweep blasting or other mechanical cleaning, to remove visible contamination.
• In clean outdoor environments, the maximum recoat interval may be extended to 3 months; in industrial or marine atmospheres, the maximum recoat interval must be shortened as much as possible according to actual conditions.

Curing time for a 100 µm (4.0 mil) dry film thickness

Notes

• Adequate and continuous ventilation must be maintained during application and curing of the coating.

Safety Precautions

• Refer to the Material Safety Data Sheet and product package labelling for full details of the stated safety precautions and protective measures
• This is a solvent-borne coating. Avoid inhaling spray and solvent vapours, and avoid contact of uncured paint with skin and eyes

Worldwide applicability

Although PPG Protective & Marine Coatings is committed to providing completely consistent products to users worldwide, from time to time it may be necessary to make minor adjustments to specific products to comply with local/national regulations or environmental requirements. In the following cases, use the corresponding alternative version of the product data sheet instead.

Reference information

• Information sheet | Explanation of product data sheets

Quality guarantee

PPG warrants (1) that it has good title to the product, (2) that the product quality conforms to the relevant technical quality specifications in force at the date of manufacture of the product, and (3) that the supplied product is free of lawful claims by third parties for infringement of US patent rights. The above warranties are limited to those given by PPG and other express or implied warranties required by applicable laws and regulations for transactions and commercial practice; any abuse contrary to the stated conditions, and any other warranty for special purposes or uses, are excluded, and PPG shall be free from liability. To claim under this warranty, the buyer must notify PPG in writing within five (5) days of discovering the quality defect, and the date must be within the product's valid storage period or within one (1) year from delivery of the product to the buyer. If the buyer fails to notify PPG of the defect as required above, this will prejudice the buyer's right to obtain compensation under this warranty from PPG!

Limitation of liability

In all cases, PPG shall not be liable for any indirect, special, incidental or consequential loss of any kind arising from or in connection with the use of this product (whether based on negligence, strict liability or tort). The information in this product data sheet is based on laboratory tests we believe to be reliable, and is provided for guidance only. PPG may revise this information at any time as experience accumulates and product development progresses. All recommendations and advice concerning the use of this product, whether in technical documents, in response to an enquiry or otherwise, are given to the best of our knowledge and are believed to be reliable. Our products and related information are provided for industrial users possessing the necessary knowledge and practical skills, and it is the end user's responsibility to determine whether the product is suitable for the specific use. The buyer, having performed such evaluation, proceeds entirely at its own risk. The quality and condition of the substrate on site, and the many other factors affecting product use and application, are beyond PPG's control.

Therefore, PPG accepts no liability for any loss, injury or damage arising from the use of the information in this product data sheet (unless otherwise provided in a written agreement). Different application environments, changes to the application process or extrapolation of the reference data may result in failure to achieve the expected coating quality. This product data sheet supersedes all previous versions. The buyer is responsible for confirming that the data sheet in hand is the latest version before using the product. The latest version is published on the official website of PPG Protective & Marine Coatings: www.ppgpmc.com. In case of discrepancy between the Chinese version and the original English version of the product data sheet, the English original shall prevail.

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