PPG STEELGUARD FM 550 Single-component Ultra-thin Intumescent Steel Fire Protection

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Key properties

• Provides 150 minutes (2.5 hours) of fire protection for structural steel in cellulosic fires
• Suitable for on-site or off-site application
• A single coat can achieve a dry film thickness of up to 1500 µm (60.0 mil) in one application
• Exterior fire protection suitable for exterior surfaces in C1 to C4 corrosive environments as defined by ISO 12944, and also for interior use; for C1 corrosive environments

interior dry surfaces generally do not require a topcoat.

• Provided application strictly follows the requirements of Information Sheet {1222}, and the coating is not exposed to rain, standing water, high temperature, high humidity or immersion, even without

With a compatible topcoat for protection, the fire protection coating can also withstand weathering on its own for 12 months.

• This product has passed multiple tests and certifications by international authorities, such as BS 476-20/21, UL 263, AS 1530:4, and has also passed the China Ministry of Public Security fire product conformity

assessment centre's tests and type certification per national standard GB 14907, meeting the regulatory requirements of many countries.

Colour and gloss

• White
• Flat

Basic data at 20 °C (68 °F)

Product parameters

UK PG 6/23(92) Appendix 3: maximum 325.0 g/L (approx. 2.7 lb/US gal)

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.

Recommended substrate condition and temperature

• Must be a compatible primer; the coating must be sound, clean, dry and free of all contaminants.

Substrate temperature and application conditions

• During application and curing, the substrate temperature should be maintained between 5 °C (41 °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 should be controlled between 5 °C (41 °F) and 40 °C (104 °F).
• During application and curing, the relative humidity must not exceed 85%

Instructions for use

• Stir thoroughly until fully homogeneous with no lumps.
• Excessive thinning may reduce the sag resistance of the wet film and slow curing.

Airless spray (single-feed pump)

Recommended thinner

Thinner 21-06 (normally no thinning required)

Spray fan angle

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

Notes

• All filters, including those in the pressure regulator and inside the spray gun, must be removed
• Recommended external line pick-up fluid filter

Brush/roller

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

Supplementary parameters

Film thickness and spreading rate

Note: maximum dry film thickness for brush application: 300 µm (12.0 mils). Recoat interval table for a coating at 700 µm (28.0 mils) dry film thickness

Recoat interval table for a coating at 1000 µm (40.0 mils) dry film thickness

Curing time table for a coating at 700 µm (28.0 mils) dry film thickness

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.

Reference information

• For application guidance for the STEELGUARD™ fire protection range, refer to Information Sheet 1222
• For the approved compatible primers for the STEELGUARD™ fire protection range, refer to Information Sheet 1224
• For the approved compatible topcoats for the STEELGUARD™ fire protection range, refer to Information Sheet 1226
• For the conversion table, refer to Information Sheet 1410
• 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 steel surface preparation, refer to Information Sheet 1490
• For mineral abrasive specifications, refer to Information Sheet 1491
• For relative humidity, substrate temperature and air temperature, refer to Information Sheet 1650

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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