SIGMATHERM 500

SIGMATHERM 500

SIGMATHERM 500

Product catalog summary
Product Overview: SIGMATHERM 500 is a heat-resistant modified alkyd aluminium coating designed for the protection of steel surfaces, both internally and externally. It withstands temperatures up to 500°C, with a minimum of 200°C required to fuse the aluminium coating. A drying period of at least 3 days at 20°C is recommended before heat exposure.
Application and Specifications: The coating is best applied by spray to enhance appearance. It has a mass density of 1.1 g/cm³ and volume solids of 32% ± 2%. The recommended dry film thickness is 25 μm, with a theoretical spreading rate of 12.8 m²/l for this thickness. Touch dry times vary with temperature, and the product has a shelf life of at least 12 months when stored in a cool, dry place.
Substrate Conditions: Steel should be blast cleaned to ISO-Sa2½ or ISO-Sa3 standards with a blasting profile of 40 - 70 μm. The paint should be stirred well before use, and its temperature should be above 15°C to avoid the need for additional thinner.
Application Methods: For air spray, a nozzle orifice of 2 - 3 mm and pressure of 0.3 - 0.4 MPa is recommended. For airless spray, a nozzle orifice of approximately 0.38 mm and pressure of 8 - 12 MPa is advised. No thinner should be added.
Safety and Handling: Adequate ventilation is crucial during application and curing. The product is solvent-borne, so precautions should be taken to avoid inhalation and contact with skin or eyes. Safety sheets provide further guidance on handling and safety measures.
Warranty and Liability: PPG provides a warranty on the product's title and conformity to specifications at the time of manufacture. Claims must be made within five days of defect discovery. PPG disclaims liability for indirect or consequential damages and emphasizes the user's responsibility to determine product suitability.
Additional Information: The document includes references to various information sheets for further details on safety, application, and environmental conditions. The English version of the document prevails over translations.
See more

Catalog excerpts

SIGMATHERM 500-1

February 2013 Revision of October 2009 heat resistant modied alkyd aluminium coating PRINCIPAL CHARACTERISTICS – to be used for the internal and external protection of steel surfaces – heat resistant up to 500°C; a minimum of 200°C is necessary to fuse the aluminium coating – a minimum drying time of 3 days at 20°C should be allowed before exposure to heat – application by spray improves the appearance COLOURS AND GLOSS aluminium – eggshell BASIC DATA AT 20 °C Mass density Volume solids VOC (Directive 1999/13/EC, SED) VOC (UK PG 6/23(92) appendix 3) (1 g/cm³ = 8.35 lb/US gal; 1 m²/l = 40.7 ft²/US gal) 1.1 g/cm³ 32% ± 2% max. 561 g/kg (Directive 1999/13/EC, SED) max. 600 g/l (approx. 5.0 lb/gal) (UK PG 6/23(92) Appendix 3) 25 μm 12.8 m²/l for 25 μm 3 hours at 5- 10°C 1 hour at 20 °C min. 48 hours at 5 - 10°C, 24 hours at 20°C max. no limitations at least 12 months, longer storage period may affect the brilliancy Recommended dry lm thickness Theoretical spreading rate Touch dry after Overcoating interval Shelf life (cool and dry place) RECOMMENDED SUBSTRATE CONDITIONS AND TEMPERATURES – steel; blast cleaned to ISO-Sa2½ or ISO-Sa3, blasting prole 40 - 70 μm SYSTEM SPECIFICATION for heat resistant systems – stir well before use – the temperature of the paint should preferably be above 15°C, otherwise extra thinner may be required to obtain application viscosity – too much solvent results in reduced sag resistance – adequate ventilation must be maintained during application and curing (please refer to sheets 1433 and 1434) AIR SPRAY Recommended thinner Nozzle orice Nozzle pressure no thinner should be added 2 - 3 mm 0.3 - 0.4 MPa (= approx. 3 - 4 bar; 44 - 58 p.s.i.)

 Open the catalog to page 1
SIGMATHERM 500-2

AIRLESS SPRAY Recommended thinner Nozzle orice Nozzle pressure no thinner should be added approx. 0.38 mm (= 0.015 in) 8 - 12 MPa (= approx. 80 - 120 bar; 1160 - 1740 p.s.i.) BRUSH/ROLLER Recommended thinner no thinner should be added CLEANING SOLVENT Worldwide availability It is always the aim of PPG Protective and Marine Coatings to supply the same product on a worldwide basis. However, slight modication of the product is sometimes necessary to comply with local or national rules/circumstances. Under these circumstances an alternative product data sheet is used Conversion tabels Explanation...

 Open the catalog to page 2
SIGMATHERM 500-3

WARRANTY PPG warrants (i) its title to the product, (ii) that the quality of the product conforms to PPG’s specications for such product in effect at the time of manufacture and (iii) that the product shall be delivered free of the rightful claim of any third person for infringement of any U.S. patent covering the product. THESE ARE THE ONLY WARRANTIES THAT PPG MAKES AND ALL OTHER EXPRESS OR IMPLIED WARRANTIES, UNDER STATUTE OR ARISING OTHERWISE IN LAW, FROM A COURSE OF DEALING OR USAGE OF TRADE, INCLUDING WITHOUT LIMITATION, ANY OTHER WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR USE, ARE...

 Open the catalog to page 3
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.