SIGMA ALPHAGEN 650 High-performance Tin-free Self-polishing Antifouling 650

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Introduction

High-performance tin-free self-polishing antifouling coating containing cuprous oxide and organic biocides, suitable for sea areas with severe marine biofouling and for antifouling of coastal vessels.

Key properties

• High-activity tin-free self-polishing antifouling coating, suitable for coastal vessels.
• Tin-free self-polishing antifouling coating, suitable for newbuilding and ship repair.
• Provides long-term control of shellfish and algae growth (antifouling performance is affected by voyage route and shipping frequency).
• Good control of polishing rate; depending on the applied film thickness, it provides antifouling performance over a corresponding service period.
• Complies with the IMO requirements for antifouling coating systems.

Colour and gloss

• Red-brown, brown, black.
• Flat.

Basic data at 20 °C (68 °F)

Product parameters

Maximum 340.0 g/L (approximately 2.8 lb/gal) (theoretical calculated value).

Notes

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

Recommended substrate condition and temperature

Substrate condition

• The previous coat must be sound, clean, dry and free of all contaminants.
• Suitable for use with high-performance anticorrosive (epoxy) systems
• In epoxy anticorrosive coating systems, Epoxy Intermediate Coat 525 or Epoxy Intermediate Coat 555 shall be used as the tie-coat between the anticorrosive and the antifouling

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

• Stir and mix before use, preferably with a power mixer, to ensure thorough mixing.
• For low-temperature application, preheat the paint to 15 °C (59 °F) or above; otherwise thinner may need to be added to reduce the paint viscosity to a level suitable for application.

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• Excessive thinning generally reduces the sag resistance of the wet film.

Airless spray (single-feed pump)

Brush/roller

• For local small-area repair and touch-up only.

Supplementary parameters

Film thickness and spreading rate

Recoat interval for a coating at 150 µm (6.0 mils) dry film thickness

Notes

• The above data serve only as valid guidance for general dry-docking application.
• With excessive film thickness or adverse climatic conditions, longer drying times may be required.

Safety Precautions

• For the coating and its recommended thinners, see Safety Sheets 1430 and 1431 and the relevant Material Safety Data Sheet.
• This is a solvent-borne coating. Avoid inhaling spray mist and solvent vapours, and avoid contact of uncured 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.
• For safety and health in confined spaces and explosion hazard — toxic hazard, see Information Sheet 1431.

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.

To meet the specific application requirements of certain countries, the following product versions may be selected

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