Pragati Paints & Allied Products


Polyurethane Paints & Primers


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We are one of the most eminent names in the manufacturing and supplying of Polyurethane Paints & Primers in India. They provide excellent base coat for PU system and have high adhesion too. Our wide range of Polyurethane Paints and Primers are made by using premium quality raw material, under the expert guidance of our expert team members. These polyurethane paints & primers are provided pre-treatment and form plastic like films on to-be painted surfaces and provide excellent corrosion and abrasion resistance.


Properties :

  • Water proof
  • Rust resistant
  • Resistance to chemicals and solvents
  • Excellent color retention
  • Glossy finish
  • Shines on outdoor exposure


Application :

  • For PU systems
  • Cement industries
  • Metal industries
  • Fiberglass
  • For interior application


Specifications :

PRODUCT SHADE SUBSTRATE RECOMMENDED USE
Polyurethane Primer Grey / MIO brown Metal / Cement
Plastic
Excellent base coat for PU system. Adhesion
to metal, fibreglass, cement & ABS surface
Polyurethane (interior-Aromatic) White / Black / iS
& RAL Shades
Metal / Fibre /
ABS / Cement
Excellent water, chemical & solvent resistance
Recommended for interior application
Polyurethane (Exterior-Aliphatic) White / Black
IS & RAL Shades
Metal / Fibre /
ABS / Cement
Excellent colour & gloss retention on outdoor
exposure, excellent chemical & solvent resistance

Product Data : (PRIMERS)

Type Single Pack
Composition Grey-Modified alkyd medium suitably pigmented with zinc phosphate.
Red oxide-CNSL base suitably Pigmented with Red oxide
Viscosity (Ford Cup B4) 90±10 Seconds
Specific Gravity 1.20±0.05
Application Brush/Roller/ conventional or airless spray
Recommended DFT 30±5µ per coat
Theoretical Spreading Rate 5-6 Sq.Mtr./ Liter
Drying Time Surface Dry-50-55 min
Tack Free- 3-4 hours
Hard Dry-over night
Over coating interval Min: Overnight
Max: 2 Days
Flash Point Above 40˚ C
Colour Grey, Red oxide
Packing 4,10,20 liters
Thinner Pragati make G.P. Thinner
Finish Grey- Smooth & Matt
Red oxide- Smooth & Matt/Glossy

Product Data : (PAINTS)

Type Single Pack
Composition Modified alkyd medium suitably pigmented
Application Brush/Roller/ conventional or airless spray
Viscosity (Ford Cup B4) 70±10 seconds
Specific Gravity 1.00±0.05
Recommended DFT 25±5µ per coat
Theoretical Spreading Rate 6-7 Sq.Mtr./ Liter
Drying Time Surface Dry-55-60 min
Tack Free- 4 hours
Hard Dry-over night
Over coating interval Min: Overnight
Max: 2 Days
Flash Point Above 40˚ C
Colour As per IS & RAL K5 Shade cards
Packing 4,10,20 liters
Thinner Pragati make G.P. Thinner
Finish Smooth & Semi Glossy/Glossy

 

After complete curing following tests should be carried.
Examine Test Specification Result
Adhesion Test After 24 hrs. ( No lifting of film form) Pass
Scratch Hardness Test 1000-1500 gm. Pass
Flexibility To pass ¼ inch mandrel Pass
Salt Spray 100-140 Hrs. Pass
Humidity Test 140 hrs. No blistering / rusting & no loss of adhesion Pass
Resistance to Grease For 48 hrs at R.T.No blistering. No deterioration of hardness, No failure of adhesion Pass

Resistance Guide :

Chemical Resistance
Exposures Splash & Spillage Mild Fumes/Out door Resistance
  PRIMERS PAINTS PRIMERS PAINTS
Acid Good Good Very Good Good
Alkalis Good Excellent Good Excellent
Solvents Very Good Good Good Good
Salt Excellent Excellent Excellent Excellent
Water Excellent Excellent Excellent Excellent

Temperature Resistance :

  • Continuous- 100˚ C
  • Intermittent- 150˚ C

Weatherability : Excellent
Flexibility :  Good
Abrasion Resistance : Good

Storage Life : Up to 6 month in intact condition or sealed the containers are kept under cover in a dry place under normal temp.conditions.


Surface Preperation :
Steel : remove grease, oil & other contaminants preferably by using degreasing solvent. Blast clean to a minimum of Sa2 ½ Swedish std SIS 05 5900. For severe corrosion, blast to Sa 3 with a surface profile not exceeding 65 microns.
If blasting is not practical, make full use of mechanical tools along with manual chipping & wire brushing to remove loose rust & scale to st 2 swedish std SIS 05 5900. Excessive burning of steel is to be avoided. Thoroughly dust down all surfaces. Best results can be achieved if the manually cleaned surface is primed with protectomastic- self priming surface tolerant coating; otherwise treatment with metal conditioning solution will also produce satisfactory results.
The surface should be clean & dry before application of primer coat.

 

Concrete : new concrete- ensures that the concrete is cured for a minimum of 3 months. The surface is to be made rough & free from laitance & other contaminants by sand sweeping.
Old concrete- removes all salt deposits from the surface by water jet washing. Light sand blast the surface to remove all loosely bound coating & roughening up to firmly adhering coating to ensure anchorage with recommended system. Ensure all dust/ other particles are fully removed by suction or air blast & the surface is fully cleaned & dry before application of paint.
In non critical areas where blasting is not possible, water jet washing & hard wire brushing are minimum requisites.

 

Application :

  • Stir base thoroughly & then mix 4 parts of base & 1 part of catalyst by volume to uniform consistency. Allow the mixture to mature for 30 minutes & stir again before application & during use.
  • Brush / Roller: add up to 5% thinner if required during application.
  • Conventional spray: add up to 15% thinner depending on conditions. Use only standard equipment at an atomizing pressure of 3.5-4.9 Kg/cm2.
  • Airless spray: apply preferably without thinning. However up to 5% thinner may be added if absolutely essential depending on conditions. Use any standard equipment having pump ratio 30:1. Tip size 0.38-0.43mm.Tip pressure 110-160 Kg/cm2 .


Note :

  • Use off the mixed paint within the specified pot life period.
  • Do not apply when temp.falls below 10˚ C or rises above 50˚ C & when relative humidity rises above 90%. Do not apply during rain Fog or mist.
  • Brushes & spray equipment should be cleaned with thinner otherwise equipment is liable to be damaged.