Basic Data At 20 °c
( For mixed product )
 Mass density
 approx. 0.90 g/cm³
 Solids content
 approx. 23% by volume
 Recommended
 dry film thickness
 15 – 30 μm
 Theoretical
 spreading rate
 15.3 m²/ltr for 15 μm
 depending on the nature and condition of the substrate and the
 application method employed
 Touch dry after
 approx. 1 hours
 Overcoating interval
 min. 16 hours*
 max. 10 days*
 Full cure after
 7 days
 Shelf life (cool, dry place)
 at least 12 months
 Flashpoint
 base and hardener – 26 °C
    Recommended Substrate Conditions
 – Concrete must be dry and free from any contamination
 (max. 4% moisture content)
 – sealer should not be applied at temperatures below 5 °C
 – substrate temperature should be at least 3 °C above the dew point
 Mixing ratio: by volume; base to hardener 75 : 25
 – the temperature of the mixed base and hardener should be above
 15 °C, otherwise extra solvent may be required to obtain the
 correct application viscosity
 – too much solvent will result in lower sag resistance and slower cure
 – thinner should only be added after proper mixing
 of the base and hardener
 – use a soft brush or broom to apply the first coat in order to saturate
 the surface. First coat should be applied thinned 5% with 91-92
 and allowed to dry thoroughly prior to application of the second
 and third coat. Roller application is acceptable for application of
 the second and third coats, with the sealer being applied unthinned.
 – well trowelled, very dense surfaces such as vacuum dewatered
 concrete may only require two coats. The sealer should only be
 applied to sand/cement screeds which are not leaner than a
 1 : 3 cement/sand ratio.
 Induction time at 20 °C
 none
 Pot life at 20 °C
 6 hours*
    Method Of Application
BRUSH AND ROLLER
 Recommended thinner
 Sigma thinner 91-92 (flashpoint 20 °C)
 Volume of thinner
 0 – 5%
 to obtain optimal flow use Sigma thinner 90 – 53 (flash point 30 °C)
 CLEANING SOLVENT
 Sigma thinner 90-53 (flashpoint 30 °C)
    Environmental
Complies with VOC specifications such as LEED etc.
    About 0654 - SIGMA EPOXY SEALER
 Two component polyamide cured epoxy impregnating sealer
     
Reviews
There are no reviews yet.