PPG STEELGUARD 652 One-component Thin-film Waterborne Intumescent Fire Protection Coating

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Introduction

A single-component, thin-film, water-borne intumescent fire protection coating for structural steel.

Key properties

• Provides up to 120 minutes of protection in cellulosic fires
• Applied on site.
• A single coat can achieve a dry film thickness of up to 700 µm (28 mil).
• Suitable for general indoor environments; no topcoat required.
• Tested and certified by independent third-party laboratories to the relevant tests: UL 263, CAN/ULC-S101, UL 2431 II-A-3 Classification.

Colour and gloss

• White.
• Flat

Basic data 20 °C (68 °F)

Parameters after mixing

Maximum time: unlimited.

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.
• The dry film thickness of the coating must comply with the requirements of the product type approval certificate.
• This product must be stored in a dry environment, away from direct sunlight, with the ambient temperature controlled between 10 °C (50 °F) and 30 °C (86 °F). Low-temperature storage may shorten the effective shelf life; the paint must never be allowed to freeze.

Recommended substrate condition and temperature

• Approved primers must be sound, dry and free from contamination; the substrate surface must be prepared in accordance with the PPG STEELGUARD 652 application guide.

Substrate temperature and application conditions

• During application and curing, the substrate temperature shall be maintained between 10 °C (50 °F) and 40 °C (104 °F)
• During application and curing, the substrate temperature must be at least 3 °C (5 °F) above the dew point.
• During application and curing, the ambient temperature shall be maintained between 10 °C (50 °F) and 40 °C (104 °F)
• During application and curing, the relative humidity shall not exceed 80%

Notes

• Excessive film thickness will extend the drying/curing time of the coating. Note that over-thick film at flange/mesh interfaces and similar areas is prone to fine hairline microcracks. However, such fine cracks do not affect the fire protection performance of the coating!

Instructions for use

• The application procedure must follow the PPG STEELGUARD 652 application guide
• Stir thoroughly until fully homogeneous with no lumps.
• Adding excessive water for thinning reduces the sag resistance of the wet film and slows curing of the coating.
• Shall be protected from freezing during storage and/or transport.

Airless spray (single-feed pump)

Spray fan angle

20–50°, depending on the shape of each area.

Notes

• Recommended external line pick-up fluid filter.
• All filters, including those in the pressure regulator and inside the spray gun, must be removed.
• For further details, refer to the PPG STEELGUARD 652 application guide

Brush/roller

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

Cleaning solvent

• Clean fresh water

Supplementary parameters

Film thickness and theoretical spreading rate

Notes

• Maximum DFT (brush): 400 µm (16.0 mil)

Recoat time for a 700 µm (28.0 mil) dry film

Notes

• Ensure the coat has reached the specified dry film thickness before applying the topcoat.
• All recoat times are measured at a wet film thickness of 1000 µm (about 700 µm dry film), with controlled temperature and relative humidity below 80%. The thicker the film, the longer the curing time.
• Before applying the next coat, ensure the coating is dry, i.e. measuring with a coating thickness gauge leaves no mark on the surface. Curing time/recoat interval may be extended by higher film thickness and/or changing environmental conditions.

Curing time for a 700 µm (28.0 mil) dry film

Notes

• All recoat times are tested at 1000 µm wet film (about 700 µm DFT) under controlled temperature and relative humidity below 80%. Higher thicknesses require longer to cure.

Safety Precautions

• Read all labels and the safety data sheet carefully before use
• Although this is a water-borne coating, avoid inhaling spray mist and its vapours, and avoid skin and eye contact with the paint as far as possible.

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
• Guide | PPG STEELGUARD 652 | Application guidelines

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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