SIGMACOLOR UNDERCOAT

Solvent borne undercoat based on alkyd resins, used as a primer for
softwoods and composites, a build coat in alkyd systems and a tie
coat between old alkyd and new waterborne coating systems
PRINCIPAL CHARACTERISTICS
– for interior and exterior use
– good adhesion to alkyd paint systems
– good covering and opacity
– good flow and drying properties
– easy to apply
COLOUR AND GLOSS
white – flat

Product Details
SKU: 811 Category: Tags: ,

Basic Data At 20 °c

Mass density
approx. 1.5g/cm3
Solids content
approx. 56% ± 2% by volume
Recommended dry film
30 – 35 μm
Theoretical
approx. 16 m2/ltr @ 35 μm
approx. 18.6 m2/ltr @ 30 μm
spreading rate
depending on nature and condition of the substrate and the
application method employed
Touch dry after
approx. 2 hours
Overcoating interval
min. 12 hours
max. no limitation
Shelf life (cool,dry place)
24 months

New timber substrates
– dry (MC 17%) and free from surface contamination
primed substrates
– surface must be dry and free from contamination
– primer should be abraded to provide good mechanical adhesion
previously painted substrates
– free from defective or poorly adhering paint films
– wash and abrade intact or remaining paint films
– bare areas spot primed

Recommended use
– primer on softwoods and composites
– buildcoat in alkyd systems
– tie-coat between intact alkyd paints and new waterborne systems
Recommended application
– applied in one coat at 30-35μm.
Over-coating finishes
– Sigma range of smooth waterborne finishes ( after 72 hrs)
– Sigma range of Alkyd finishes

Method Of Application

AIRLESS SPRAY
Recommended thinner
20-05 (flashpoint 38 °C)
Volume of thinner
0 – 5%
AIR SPRAY
Recommended thinner
20-05 (flashpoint 38 °C)
Volume of thinner
5 – 10%
BRUSH AND ROLLER
Recommended thinner
20-05 (flashpoint 38 °C)
Volume of thinner
0 – 5%
CLEANING SOLVENT
20-05 (flashpoint 38 °C)

Environmental

Complies with VOC specifications such as LEED etc.

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About SIGMACOLOR UNDERCOAT


Solvent borne undercoat


  • For interior and exterior use

  • Good adhesion to alkyd paint systems

  • Good flow and drying properties