Indokote SIL400 is single component, Silicone resin based high temperature aluminum coating. SIL400 is designed to provide heat resistant up to 400 °C. It can be used as primer, mid coat or finish coat in atmospheric environments. It is suitable for properly prepared carbon steel, galvanised steel, stainless steel and aluminium substrates. Also suitable for intermittent heat of maximum of 540°C.
Indokote SIL400 can be dirrectly applied outside storage tanks, furnace, pipe stack, exhaust stacks, ducting radiator, boiler fronts, Chimney as well as structural steel & other surfaces operating at elevated temperatures. Strongly recommended in combination with an inorganic zinc silicate coating as primer, providing heat resistance up to 400 °C and long term corrosion protection.
Colour
Bright Silver
Finish
Matt
Soild by Volume
42 ± 2%
Flash Point
25° C
Dry Heat Resistance
Intermittent: 540°C, Continuous: 400°C
Shelf Life
12 months
Recommended film thickness per coat
Dry Film Thickness
20-30μ in single coat
Wet Film Thickness
50-70μ in single coat
Therotical Coverage Rate
17.0 sq.mt / lit at recommended DFT of 25μ
All surfaces to be coated should be clean, absolutely dry and oil or moisture free before painting application. Oil and grease should be removed by solvent cleaning.
Primed Surface : Indokote SIL400 is suitable for application to steelwork freshly coated with zinc silicate shop primers. If the zinc shop primer shows extensive or widely scattered breakdown, or excessive zinc corrosion products, overall sweep blasting will be necessary. Ensure that the zinc primer is fully cured prior to the application of SIL 400.
Steel : Abrasive blast clean to a minimum of Sa2½ (ISO 8501-1:2007). Surface defects revealed by the blast cleaning process should be ground, filled, or treated in the appropriate manner. A surface profile of 30-40 microns is recommended.
Repair & Maintenance : Indokote SIL400 can be applied directly over aged HR Aluminium coating following thorough fresh water washing and degreasing provided the coating to be overcoated is in an intact and tightly adherent condition. Loose or flaking coatings should be removed back to a firm edge and SIL400 or an appropriate primer should be used to repair the area before application of the full coat.
Application Method
Spray/ Airless Spray/Brush/ Roller
Mixing Ration
One Component Coating
Thinner and Cleaner
Not Recommended. IK.1702 can be use as cleaner.
Airless Nozzle Orifice
0.28 - 0.33mm
Nozzle Pressure
130 kg/cm² or 1800 psi
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