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Primer Sealer

Primer Sealer

Product Description

Nelson Bold Primer Sealer based on alkyd resin is specially formulated to seal moisture and marks of moisture on plaster surfaces meant for repainting. It is used as primary coat to enhance durability of finishing paint.

Design Usage

Nelson Bold Primer sealer can be used on interior plastered walls, ceiling, concrete, and brickwork etc. It reduces damage from alkali, salts and seals porous surfaces.



Technical information


Theoretical Coverage

11 – 13 m2 per liter per coat (Actual Coverage is dependent on substrate condition, application  method, application condition and finishing appearance) 



Volume Solid

40 % ± 2

Dry Film Thickness

30 ± 3 um per coat (based on substrate condition) 



Flash Point

360C ± 2 

Drying Time

Touch dry 03 – 04 hour (Dependent on temperature and humidity) 

Hard dry 24 hour (Dependent on temperature and humidity)

Recoat Interval

10 – 12 Hrs (Dependent on temperature and humidity)  

Application Method

Brush / Roller and spray, Dilute (by volume) the paint 10 – 15 % of Nelson ideal Turpentine (This is recommended method of application Care should be taken to ensure an even application to avoid film defects)

Storage Instruction

Store in a cool shaded, well-ventilated dry area, protected from heat and direct sunlight. Container must be kept tightly closed. 


0.91 Liter, 3.64 Liters & 14.56 Liters drum


Surface Preparation

The surface to be painted should be clean, dry free from all loose material like efflorescence and old Flaking paint. Loose plaster, cement splashes and dust must be
thoroughly removed. New plaster / concrete must be fully cured. Uneven areas should be filled with Nelson Bold Wall Putty and leveled with emery paper before painting.

Condition during Application

The temperature of the substrate should not be less then 100C and at least 30C above the dew point of the air, temperature and relative humidity measured in the vicinity of the substrate

Typical Paint System interior



Nelson Bold primer sealer (dependent on surface condition)  

1-2 Coat


Nelson Bold wall Putty(depend on surface condition)

1-2 Coats


Nelson Interior Top Coat

2-3 Coats


Safety Precautions

  • Avoid contact with the skin and eyes. Wear suitable protective clothing such as goggles, dust mask and gloves. Use a barrier cream.
  • Ensure that there is adequate ventilation in the area where the product is being applied. Do not breathe vapors or spray.
  • This product is un-flammable but Keep away from sources of ignition and heat.
  • Paint should be stirred well before use. Replace lid of unused paint tin tightly.


The information provided on this data sheet is not intended to be completed and is provided as general advice only. It is the responsibility of the user to ensure that the product is suitable for the purpose for which he wishes to use it. As we have no control over the treatment of the product, the standard of surface preparation of the substrate, or other factors affecting the use of this product, we are not responsible for its performance nor would we accept any liability whatsoever or howsoever arising from the use of this product unless specifically agreed to in writing by us. The information contained in this data sheet may be modified by us from time to time, and without notice, in the light of our experience and continuous product development.