The document discusses different types of conformal coatings, their properties and applications. It defines conformal coating as a thin protective plastic film that conforms to an electronic circuit board. The main types covered are acrylics, polyurethanes, epoxies, silicones and fluorocarbons. Acrylics are most common due to their low cost and ease of application, while silicones are suitable for high temperature uses. Key factors in selecting a coating include chemical resistance, temperature tolerance, and ease of application and repair.

1. The Basic Concepts of Conformal Coating An examine of conformal coating materials available today and how they perform

29. Humiseal Product Range & Codes

30. Humiseal Product Code 1A33 1B31 1C49 1H20AR1 1B73 2A64 UV40

31. Humiseal Product Code Solvent Based Number of part: 1 = 1 part system 2 = 2 part system 1 B31 2 A64

32. Humiseal Product Code Solvent Based Number of part: 1 = 1 part system 2 = 2 part system 1 B 31 2 A 64 Chemistry: A = PU B or R= AR C = SR

33. Humiseal Product Code Solvent Based Number of part: 1 = 1 part system 2 = 2 part system 1B 31 2A 64 Chemistry: A = PU B or R= AR C = SR Product number

34. Humiseal Product Code Solvent Based (SB) Products 1B73 1B18 1B31 1R32 1R32A-2 1A33 1A68 1A20 2A64 Technology SB SB SB SB SB SB SB SB SB Chemistry AR AR AR AR AR PU PU PU PU Cure mechanism Solvent Evap. Solvent Evap. Solvent Evap. Solvent Evap. Solvent Evap. Oxygen Oxygen Moisture Moisture MIL Yes No Yes No No Yes No Yes Yes UL Yes Yes No No Yes No No Yes No Low cost equivalent 1B18 N/A 1R32 N/A N/A 1A68 N/A N/A N/A Comments Military Reference for AR Automotive Reference Military Reference for PU

35. Humiseal Product Code Solvent Based 1H20 AR1 /S 1H20 UR5 /D Technology: 1H20 = water based Chemistry: AR = Acrylic UR = Polyurethane Application method: S = spraying D = dipping

36. Humiseal Low VOC SB = Solvent Based AR = Acrylic PU = Polyurethane WB = Water Based SR = Silicone UV = UV curable Most widely used products Products UV40 UV40 250 1C49LV 1C51 1H20AR3/S 1H20AR3/D 1H20UR5/S 1H20UR5/D Technology UV UV SR SR WB WB Chemistry PU PU SR SR AR PU Cure mechanism UV+ Moisture UV+ Moisture Moisture Heat Air Oxygen MIL Yes No Yes Yes Pending Pending UL Yes Yes Yes Yes Pending Pending Low cost equivalent N/A N/A N/A N/A N/A N/A Comments Automotive reference Spray and dip grade Spray and dip grade

37. Humiseal Thinners Most widely used products Products 503 535 505 521 604 600 Evaporation Rate (BuAc=1) 3.7 2.1 1.7 0.6 0.4 0.3 Flash point -1 7 14 27 11 47 Material 1B31, 1B73, 1A33 1B51 1R32 1B31, 1B73, 1A33 1B73 EPA 1R32A-2 Application method Dip, brush Dip, brush Dip, brush Spray, brush Spray, brush Spray, brush Comments Reference for dipping Reference for spraying Reduce bubbles

38. Humiseal Strippers Most widely used products SB = Solvent Based AR = Acrylic PU = Polyurethane WB = Water Based SR = Silicone UV = UV curable Most widely used products Products 1080A 1020 1063 1072 Chemistry to remove SB AR WB AR PU PU Coatings 1B31, 1B73, 1R32A-2 1H20 AR3 1A33 1H20 UR5, UV40 Comments Replacing previous 1080 Replacing previous 1071