SILHEAT 250 Extra – Heat Resistant modified alkyd resin based aluminum paint
Properties and Areas of Use
– Heat resistant up to 250C
– Good resistance to atmospheric exposure
– For best appearance spray application should be used.
Technical Coating Data @ 25 °C for mixed material
Finish Metallic Sheen
Color Range Silver
Solids Volume 42 ± 2%
Dry Film Thickness Range 25-50 µm
Theoretical Spreading Rate 12 m² / L @ 35 microns DFT
(loss factors will apply in practice)
Surface Dry 30 min.
Recoat Interval 16 hours minimum
7 days maximum
Complete Cure 24 hours
Pot Life N/A (Single Pack)
Flash Point 26°C
Shelf Life 12 months minimum.
Mixing Ratio by Weight N/A (Single Pack)
VOC 432 g/L
Film Thickness and Spreading Rate:
Minimum Maximum Typical
Film thickness, dry (µm) 25 50 35
Film Thickness, wet(µm) 60 119 83
Theoretical Spreading Rate (m2/L) 16.8 8.4 12
Steel and non ferrous metals properly prepared and blast cleaned to ISO-Sa2½
Concrete free of contamination, dust and efflorescence, and properly prepared
Cleanliness: Blast – cleaning to Sa2 1/2 (ISO-8501-1:2007). Power tool cleaning to min. St2 (ISO8501-1:2007) may be acceptable, subject to exposure conditions.
Clean, dry and undamaged approved shopprimer
Clean, dry and undamaged compatible primer .
For aluminium substrates , thorough washing and sweeping with a nonmetallic blast medium is required.
Substrate temperature should be 10°C or above for application and during cure and aminimum of 3°C above the dew point. Adequate dry air ventilation is recommended for
Thinning should only take place after the two components have been thoroughly mixed.
Brush and Roller
Thin if required with 0-5% Paint Thinner Colorama TH921.
Conventional Air Spraying
– Thin with 5-25% Paint Thinner Colorama TH921, as required.
– Tip size – 2.0 mm
– Tip pressure – 60 psi (0.4Mpa) approximately
– Thin with 0-20% Paint Thinner Colorama TH921, as required
– Tip size – 0.58-.79 mm approximately
-Tip pressure – 2100 psi (15Mpa) approximately
Equipment should be cleaned immediately after use with Paint Thinner Colorama TH921.
Drying times are affected by air ventilation, temperature, film thickness and number of coats.
Substrate Temp. 10° C 25° C 40° C
Surface Dry 1 h 30 min 15 min
Through Dry 16 8 6
Dry to recoat, minimum 24 16 12
The given data serve as guideline only. The actual drying time differs according to film
thickness, ventilation, humidity and underlying paint system.
Typical paint system:
PRIMALKYD Fast 1 x 50 µ
SILHEAT 250 Extra 2 x 35 µ
Keep the containers in a dry, cool, well ventilated space and away from source of heat and ignition. Containers must be kept tightly closed.
Handle with care. Stir well before use.
Packing Size: 5 L & 18 L
Summary Safety Information
– Avoid inhalation of spray mist and skin contact by the use of masks, gloves and other personal
protection. Eyes should be cautiously washed with water or proprietary wash, and medical
attention obtained. Skin should be thoroughly washed using a cleanser and soap and water.
– Product is flammable
– No sparks or flames
– No smoking
SILHEAT 250 Extra – Heat Resistant