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Sherwin-Williams Heat-Flex M505 - Special Order is an air drying silicone resin based heat resistant matt finish coating. It is used for application on to steel surfaces previously coated with Dox-Anode D5V2 or zinc or aluminium metal spray, where heat resistance is required.
Maximum Surface Temperatures:
- White: up to 250°C with no discolouration, slight discolouration up to 350°C
- Aluminium: up to 600°C with no discolouration
- For readily-available colours and sizes please see Sherwin-Williams Heat-Flex M505
- Please note: White 5L and Aluminium 20L are made to order products with a minimum order quantity of 200L and an extended lead time of 14 working days. Please contact us on 0113 2455450 (option 1) or send a message to [email protected] for details
Sherwin-Williams Heat-Flex M505 is an air drying silicone resin based heat resistant matt finish coating. It is used for application on to steel surfaces previously coated with Dox-Anode D5V2 or zinc or aluminium metal spray, where heat resistance is required.
Please note: White 5L and Aluminium 20L are made to order products with a minimum order quantity of 200L and an extended lead time of up to 14 working days. Please contact us on on 0113 2455450 (option 1) or send a message to [email protected] for details.
- For readily-available colours and sizes please see Sherwin-Williams Heat-Flex M505
Recommended Primers/Topcoats
- Zinc Clad II EU (up to 400°C)
Topcoat not normally required, but indefinitely overcoatable with itself.
Surface Preparation
Ensure surfaces to be coated are clean, dry and free from all visible traces of surface contamination. Any contamination of metal spray will prevent the M505 film penetrating and sealing, leaving it sitting on top and prone to blowing off.
M505 is not designed to provide anticorrosive protection, but it is possible to apply the product in 2 coats directly onto blast cleaned steel to Sa21⁄2 BS EN ISO 8501-1:2007 ( average surface profile in the range of 50-75 microns ) provided it is put into service quickly and kept at elevated temperatures. Steelwork coated with M505 should not be exposed to moisture prior to putting into service ( see additional notes below).
Additional Notes
Over-application
Over-application of M505 must be avoided. If the recommended film thickness is exceeded, adhesion may be reduced especially when exposed to high temperatures. Adhesion of M505 may be adversely affected if the applied film is subjected to a very rapid rise in temperature when first brought into high temperature service, due to thermal shock effects - post curing of the applied film is therefore recommended, see note below.
Post-Curing
If M505 is to be exposed to ambient weathering or moisture before service, it is required that the coating is post-cured by gradually elevating the temperature to a minimum of 205°C and maintaining this temperature for 2 hours.
Numerical values quoted for physical data may vary slightly from batch to batch.
USE AS A SEALER FOR THERMALLY SPRAYED METAL COATINGS:
M505 is suitable for use as a sealer for thermally sprayed aluminium (TSA) or zinc (TSZ). Application spreading rate will be dependant upon the porosity of the substrate. Recommendation as stated in NORSOK M501 Rev 6 should be followed:- “The sealer shall fill the metal pores. It should be applied until absorption is complete. There shall not be a measurable overlay of sealer on the metallic coating after application”.
Post curing of M505 applied as a sealer for TSA or TSZ is not required.
Data sheet
- Manufacturer
- Sherwin-Williams
- For Use By
- Industrial Use
- Water / Solvent Based
- Solvent
- For Use On
- Steel
- Application Method
- Spray, brush
- Sheen
- Matt
- Colour
- Standard / Ready Mixed
- Single, Two or Three Pack
- Single
- Product Certifications
- NORSOK M501 Rev 6
- Pack Size
- 5L, 20L
- Coverage
- 12.3m² per litre
- Heat Resistance (up-to)
- 600°C
- Touch Dry
- 1 Hour
- UN Number
- UN1263
- Base Type
- Solvent-Based
- Base Type
- Silicone
- Suitable For Use On
- Steel
- Application Method
- Brush
- Application Method
- Spray
- Product Usage Type
- High Temperature Coating
- Product Range
- Heat-Flex
- Colour Family
- White
- Colour Family
- Aluminium
- Heat Resistance
- Up To 600°C
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IMPORTANT SHIPPING & DELIVERY INFORMATION
Sherwin-Williams Heat-Flex M505 - Special Order is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT