PPG SIGMASHIELD 880GF AMERLOCK 880GF Abrasion-resistant Epoxy Coating 88

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Key properties

• Mainly used as a protective coating for the maintenance of offshore platform splash zones.
• Designed for heavy-duty industrial anticorrosion and other severe corrosive environments
• High seawater resistance
• Excellent anti-corrosion properties
• Highly reinforced impact and abrasion resistance
• Continues to cure after immersion
• A single coat applied in one pass achieves the expected long-term protection
• Compatible with well-designed cathodic protection systems
• Suitable for surfaces prepared by wet blasting or ultra-high-pressure water jetting (UHPWW), whether wet or dry

Colour and gloss

• Yellow and black (other custom colours are also available on request)
• Gloss

Basic data at 20 °C (68 °F)

Parameters after mixing

UK PG 6/23(92) Appendix 3: maximum 207.0 g/L (approx. 1.7 lb/US gal)

Curing agent: at least 24 months; store in a dry and cool environment

Notes

• See the supplementary data sheet — film thickness and spreading rate
• See supplementary parameters — recoat interval table
• See supplementary parameters table — curing time table

Recommended substrate condition and temperature

Substrate condition

• The performance of the coating depends on the quality grade of surface preparation
• Bare steel; blast cleaning to Sa2 or Sa2½ of ISO 8501-1,
• The surface roughness after blast cleaning is recommended to be controlled at 40-80 µm
• Bare steel; for new construction, hand/power-tool cleaning to St3 of ISO 8501-1 or SSPC-SP3 is acceptable;

For maintenance projects, St2 of ISO 8501-1 or SSPC-SP2, or ultra-high-pressure water jetting to WJ2L/3L of UHPWH (SSPC-VIS-4) is required.

• Confirmed compatible previous coat; the surface only needs to be clean, dry and free of all contaminants.

Substrate temperature and application conditions

• During application, the substrate surface temperature must be maintained at least 3 °C (5 °F) above the dew point.

Instructions for use

Mixing ratio by volume: base : curing agent = 75:25 (3:1)

• The thinner should be added after the two components are mixed
• If necessary, thin as appropriate, but do not exceed the specified ratio, to bring the application properties of the paint to the ideal state.
• Excessive thinning may reduce the sag resistance of the wet film and slow curing.

Pot life after mixing

2 h at 20 °C (68 °F). Note: see supplementary parameters — pot life after mixing

Air spray

Airless spray (single-feed pump)

Brush/roller

• For local repair and manual touch-up only

Supplementary parameters

Film thickness and spreading rate

Recoat interval table for a coating at 500 µm (20.0 mils) dry film thickness

Curing time table for a coating at 500 µm (20 mils) dry film thickness

Notes

• The drying time of the coating depends on the dry film thickness after application and the ventilation during curing. Drying is usually slower at high film thickness and poor ventilation.
• For dark-coloured coatings on dams and piles in tidal zones, premature immersion while the completed coating is still wet may cause surface whitening, but this will not materially affect

the final anticorrosive performance of the coating.

• During application and curing, ensure continuous, adequate ventilation (see Safety Sheet 1433 and Information Sheet 1434)

Pot life after mixing (at suitable application viscosity)

Safety Precautions

• For the coating and its recommended thinners, see Safety Sheets 1430 and 1431 and the relevant Material Safety Data Sheet
• This product is a solvent-borne coating; handle with care. Avoid inhaling spray mist and solvent vapour, and avoid contact of wet paint with skin and eyes.

Worldwide

Although PPG Protective and 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

• For product data, refer to Information Sheet 1411
• For safety guidance, refer to Information Sheet 1430
• Safety and health in confined spaces | explosion hazard — toxic hazard: refer to Information Sheet 1431
• For safe working in confined spaces, refer to Information Sheet 1433
• For ventilation guidance, refer to Information Sheet 1434

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 data sheet is derived from laboratory tests which we believe to be reliable, and is intended for reference and guidance only. As experience accumulates and product development continues, PPG may revise the information above at any time. All recommendations or suggestions regarding the use of this product, whether in technical documents, in reply to an enquiry or otherwise, are given to the best of our knowledge and the data is reliable. Our products and related information are provided for industrial users who have the necessary knowledge and practical skills; the end user of the product is responsible for determining whether the product is suitable for the specific purpose. Accordingly, the purchaser is assumed to have performed such evaluation and may act at its own discretion and risk.

The quality and condition of the substrate on site and the many other factors affecting the use and application of the product are beyond the control of PPG. Accordingly, PPG accepts no liability for any loss, injury or damage arising from the use of the information in this data sheet (except as otherwise provided in a separate written agreement). Different application environments, changes to the application process or speculation about the reference data may result in failure to achieve the expected coating quality.

This data sheet supersedes all previous editions. The purchaser is responsible for verifying, before using this product, that the data sheet in hand is the latest version. The current latest version is published on the official website of PPG Protective & Marine Coatings: www.ppgpmc.com. In the event of any discrepancy between the Chinese and English versions of this data sheet, the English original shall prevail.

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