PPG SIGMAGUARD 795 High-solids Phenolic Epoxy Coating 795

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Key properties

• Used as the manual stripe-coating product for the PHENGUARD series phenolic epoxy system for newbuilding special-coating tanks
• For repair and maintenance of amine-cured epoxy protective coating systems for chemical carriers, such as High-solids Epoxy 720 and the PHENGUARD series phenolic epoxies.
• A product designed for small-area local repair and manual stripe coating
• Also has excellent adhesion to abraded/roughened steel and old coated surfaces
• Brush/roller application is also easy when higher dry film thickness is required.
• Good chemical resistance
• Easy to treat by various methods
• Fast curing

Colour and gloss

• Grey, green and pink
• Eggshell

Basic data at 20 °C (68 °F)

Parameters after mixing

Maximum 273.0 g/L (approx. 2.3 lb/gal) (theoretical calculated value)

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

Notes

• See supplementary parameters — recoat interval table
• See supplementary parameters table — curing time table

Recommended substrate condition and temperature

Substrate condition

• Before carrying out coating repair in cargo tanks, ensure the surface is clean and dry and the tank is free of harmful gases.
• The previous coat must be clean, dry and free of all contaminants.
• Completed tanks must be protected by various measures: lay foot mats at the tank opening front, and all personnel shall wear soft shoe covers when entering the tank.
• Local small-area rust or coating defects shall be ground with rotary abrasive discs or other power tools to the SPSS-Pt3 standard, or vacuum-blasted to meet

Sa 2.5 of the international standard ISO 8501-1.

• Overlap areas between new and old coatings must be abraded/roughened, and the surrounding edges shall be feathered to a taper.
• Before repair-coating with High-solids Phenolic Epoxy 795, wipe the prepared areas with solvent to remove cargo residues remaining in the old coating.
• Before and during application of Phenolic Epoxy 795, the substrate must remain completely dry.
• After repair coating, the coating system must be fully cured — achieved by heat curing or by carrying only non-corrosive cargo in the first 3 months — otherwise

cargo marked with notes 4, 7, 8 or 11 must not be carried.

Substrate temperature and application conditions

• During application and curing, the substrate temperature must be above 10 °C (50 °F)
• During application and curing, the substrate temperature must be at least 3 °C (5 °F) above the dew point

Coating system specification

• Manual stripe coating: apply by brush, one coat at 75 µm (3.0 mil) dry film thickness.
• Local repair coating: two coats, total dry film thickness at least 200 µm (8.0 mil).

Instructions for use

Volume mixing ratio: base : curing agent = 85:15

• Ensure the mixed paint temperature of the base and curing agent is above 10 °C (50 °F); otherwise, additional thinner may be required to bring the paint viscosity

adjust to a state suitable for site application.

• If necessary, a suitable amount of thinner may be added after mixing.

Induction Time

Not required

Brush/roller

Supplementary parameters

Film thickness and spreading rate

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

Note: no cargo may be loaded before the subsequent coat is completed

Curing time table for a coating at 150 µm (6.0 mils) dry film thickness

Notes

• Minimum curing time required when loading chemicals in the loadable cargo list marked with notes 4, 7, 8 or 11: 3 months
• During application and curing, ensure continuous, adequate ventilation (see Safety Sheet 1433 and Information Sheet 1434)
• Contact with water during the curing/conditioning period of the Phenolic Epoxy 795 coating will affect the subsequent coating performance.

Pot life after mixing (at suitable application viscosity)

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

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
• For mineral abrasive specifications, refer to Information Sheet 1491

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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