tips for surface preparation, priming & common painting problems
free color consultancy & online paint calculator
our exhaustive range of decorative paints for your home
India's first computerised tinting system with over 2500 shades
protective coatings, powder coatings & industrial coatings
premier Indian paint company with 77 years of heritage
your enquiries, feedback & suggestions
where it all began . .
painting tips
  
It will extend life of painting & save money.
   
Whenever you see colour, think of us...
     

Tricks &tips for your dream home

    

Budget at your fingertips

Surface Preparation  |  Priming  |  Common Problems   |  Application Procedure

Surface Preparation

  • Before application of any paint coat the substrate needs certain preparation.
  • New wooden surfaces require scraping with sand paper to make the surface smoother.
  • Cement plaster surface requires wire-brushing to remove loose particles. For best finish a layer of lime punning or plaster of paris is applied by trowelling to make the surface smooth and even.
  • Iron and metal surfaces require degreasing and de-rusting before application of priming coat.

Surface preparation is a must before painting because the total life of a paint coat depends to a great extent on how carefully the surface preparation is done. Paints applied on loose and flaking cement sand plaster or paints applied on greasy rusty metal substrates would show early break down of paint film.

top

Priming

  • Selection of appropriate Primer for individual substrates like Wood, Cement plaster, Mild Steel, Aluminium etc. is important.
  • Primers fight against the characteristic deficiencies related to a particular substrate (eg. Alkalinity present in cement plaster or moisture and absorption characteristic of wooden substrates).
  • It protects the substrates from degradation (eg. Mild steel substrate from rust).
  • Most importantly it acts as a key to provide better adhesion between the substrate and the top coat of finish paint.
top
General Paint defects / problems causes and remedies <img src="main.gif" width="360" height="302" border="0">
top
Application procedure

Interior Walls (Special effects, Sheen, Robbialac,
Super Acrylic Emulsion, PAWD, JAWD, Pearl Lustre)

  • Surfaces must be cleaned, dried and freed from efflorescence
  • Previously painted areas should be freed from loose or flaking particles, cleaned and rubbed down
  • Fill up the cracks/dents/uneven surfaces with Jensolin Wall Putty, rub down with sand paper and wipe off the dust
  • Apply 1 or preferably 2 coats of InstaColor Matching Primer or Jensolin Cement Primer (oil based) or J&N Alkali Resistant Water Thinnable Cement Primer-Acrylic Base. The first 2 primers should be thinned with good quality mineral turpentine oil and the last with clean water.
  • Apply 1 coat of plastic paint or distemper after appropriate thinning with clean water (see instructions on container). Application can be done by brush, roller or spray.
  • After first coat is dry (usually 4-6 hours is sufficient) apply second coat.
  • In case of kitchens/bathrooms/high traffic areas 2 coats of glossy or semi-glossy enamel paint is recommended.

top

Exterior Walls

Cement Paint (ROBBIACEM)

  • New surfaces should be cleaned and freed from efflorescence
  • Previously painted surfaces should be washed or brushed down but if the surface is in powdery or flaking condition, it should be removed by scraping or wire-brushing.
  • In case of areas affected by fungus or algae clean with wire-brush thoroughly and wash with water. After drying apply one coat of Anti-fungal solution and allow to dry.
  • Cement paints should not be used on non-absorbent surfaces such as glazed bricks or neat cement finish or previously flat-oil/enamel painted surfaces.
  • Cement paint – ROBBIACEM – is in powder form and requires thinning with clean water. First mix to a creamy consistency by adding 3 volumes of Robbiacem to one volume of water (always add Robbiacem to water and not the other way around). For brushable consistency dilute the paste by adding further 2-3 volumes of clean water.
  • Saturate the exterior wall surface with water
  • Immediately after the excess surface water has disappeared, apply one coat of Robbiacem.
  • After 4 to 6 hours sprinkle the surface with water again.
  • When dry, usually overnight, wet the surface with water as done before first application and apply a second coat of Robbiacem.
  • Sprinkle water after 4 to 6 hours

    Textured Finish  (ARMOR QUARTZ or INSTACOLOR QUARTZ FINISH)

  • New surfaces should be cleaned and freed from efflorescence
  • Previously painted surfaces should be washed or brushed down but if the surface is in powdery or flaking condition, it should be removed by scraping or wire-brushing.
  • For new surfaces, apply one coat of Robbiacem Cement Paint as base coat.
  • Apply one coat of Quartz Finish thinned with 5-10% of clean water by volume.
  • For previously painted surfaces we recommend a base coat of the Quartz Finish itself (diluted one to one with water) and a final coat of Quartz Finish thinned with 5-10% clean water by volume.

Acrylic Exterior Smooth Finish (SPECIAL EFFECTS EXTERIOR or INSTACOLOR ACRYLIC EXTERIOR)

  • New surfaces should be cleaned and freed from efflorescence
  • Previously painted surfaces should be washed or brushed down but if the surface is in powdery or flaking condition, it should be removed by scraping or wire-brushing.
  • For new surfaces, apply one coat of Robbiacem Cement Paint as base coat.
  • Apply 2 coats of Acrylic Exterior paint after thinning with 400 ml of clean water per 1 ltr of paint.
  • For previously painted surface we recommend a base coat of Acrylic Exterior paint diluted with equal volume of clean water. After drying apply 2 coats of Acrylic Exterior paint after thinning with 400 ml of clean water per 1 ltr of paint.
  • Never apply this paint on a rainy day or on damp surface.

top

Wood (Brolac, Super Enamel, Pearl Lustre)

  • Clean and smoothen the surface with sand paper
  • Fill cracks and dents with Brolac Knifing Paste Filler
  • Ensure knots are sealed with knotting varnish
  • Apply one coat of Jensolin Pink or White primer or J&N Grey Primer
  • Apply 2 coats of Brolac Polyurethane or InstaColor Super Enamel or InstaColor Pearl Lustre.

Metal (Brolac, Super Enamel, Pearl Lustre)

  • Remove rust and grease from surface by using if necessary, de-rusting/de-greasing solutions or by scraping with wire-brush.
  • Apply one coat of suitable metal primer like J&N Superior Red Oxide Primer or J&N Red Oxide Zinc Chromate Primer or J&N Synthetic Red Lead Primer. The primer is very important for its anti-corrosive properties.
  • For aluminium and galvanised iron surfaces apply one coat of J&N Etch primer followed by one coat of J&N Zinc Chromate primer.
  • Apply 2 coats of Brolac Polyurethane or InstaColor Super Enamel or InstaColor Pearl Lustre.

top


[ paintings tips | free decor service | home paints | instacolor | industrial paints | about us | contact us | home ]