Paint Polyurethane Aliphatic Exterior Coatings For War Equipments & Land Platforms
Combat Equipment is exposed to a wide variety of terrain complexity coupled with extreme climatic conditions demand that the metal body of the equipment be thoroughly protected to ensure equipment's performance and service life.
This Matte Finish Polyurethane Coating is specifically recommended for War Equipments, multi-component chemically cured product that forms a film that is resistant to chemicals, solvents and abrasion. This coating has excellent adhesion to most substrates. The Coating is free of Chrome and Lead Pigments, limits are < 90 PPM.
Physical Properties of Formulation
|Viscosity of Mixed Paint @300C||ASTM D 1200||40-60 Seconds (Max)|
|Specific Gravity@300C||ASTM D 1475-85||12.00±0.50 Kg/ 10L|
|Fineness of Grind||ASTM D 1210-05(2014)||< 15 Microns|
|Flash Point (Closed Cup)||ASTM D 93||> 200C|
Performance Properties of Dried Coating
|Specular Gloss @600
|ASTM D 523-14(2018)||0-5
|Colors||IS 5, Pantone, RAL and Federal Standard 595-C||ΔE<1|
|Mandrel Bend Test ¼“||ASTM D 522||No Sign of Damage, Detachment or Cracking|
|Resistance to Heat||IS 101 (Part7, Sec 3)||Passes the test|
|Dry Abrasion Resistance||ASTM D 4060||> 125 Mg. Loss (Max) @1000 Cycle|
|Adhesion by Tape Test||ASTM D 3359||>= 4A|
|Solvent Resistance (MEK)||ASTM D 5402||The Coating Withstands 25 Double rub|
|Dry Film Thickness||ASTM D 1005-95 (2013)||30-40 Micron|
|Resistance to Humidity Under Conditions of Condensation||IS 101 (Part6, Sec 1)||No Sign of Corrosion in 500 Hours|
|Salt Fog Resistance||ASTM B 117-19||No signs of Flaking, Blistering & Corrosion|
|Accelerated Weathering (500 Hours)||ASTM G 155|| Matte coated camouflage colors show no
cracking, chalking, loss of adhesion, or increase
in the Gloss Values to the Original, post
Semi Gloss shows min of 30 Gloss Units post exposure ΔE < 1.0 when compared to an unexposed sample of the same batch using CIE LAB color coordinates.
This Coating is recommended for very high anti corrosive, chemical resistance (CARC) & weather resistance requirements. It remains unaffected in direct contact with sea water & heavy applications where a tough, resilient finish is required.
|Priming||Epoxy Zinc Phosphate Primer||Air/Airless Spray|
|Putty||Unsaturated Polyester Putty||By Knifing/Spatula|
|Surfacer||PU Surfacer||Air/Airless Spray|
|Finishing||PU Topcoat||Air/Airless Spray|
Surface Preparation / Cleaning
The surface should be sand blasted adhering to SA 2.5 specifications. Surface should be free of oil, grease, dust and loose particles. For mechanical cleaning surface should be sand blasted to min. ST 2 standards. Soundly prepared surfaces will lead to a better paint application. When used over old coating systems, the surface must be clean, dry and properly anchored.
|Application Method||Dipping, Flow Coating or Spraying|
|Thinner (Volume)||5-15% depending on method of application|
|Conventional Spray Requirements||50 psi|
|Airless Spray Requirements||2200 psi|
|Mixing Ratio (By Volume)||5:1 (v/v)|
|Pot Life @30°C||8 hours|
Safety, Handling, Storage, Shelf Life:
Store in a cool ( ~25°C ) and dry area, and keep away from direct sun light. For detailed handling procedures please refer to product's MSDS. When stored properly, product has a 1 Year shelf life.