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HumiSeal Conformal Coating 1B66NS

  • HumiSeal Conformal Coating 1B66NS
  • HumiSeal Conformal Coating 1B66NS
  • HumiSeal Conformal Coating 1B66NS
  • HumiSeal Conformal Coating 1B66NS
  • HumiSeal Conformal Coating 1B66NS
  • HumiSeal Conformal Coating 1B66NS
  • HumiSeal Conformal Coating 1B66NS
  • HumiSeal Conformal Coating 1B66NS
  • HumiSeal Conformal Coating 1B66NS
Model No.︰1B66NSLU,1B66NS
Brand Name︰HumiSeal
Unit Price︰US $ 180 / pc
Minimum Order︰12 pc
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Product Description

HumiSeal® 1B66 conformal coating is:

  • an acrylic chemistry
  • fast drying
  • single component
  • can be used with sever thinner types to match the application environment

HumiSeal 1B66 conformal coating has:

  • excellent moisture and environmental protection for printed circuit assemblies
  • excellent flexibility
  • fluorescence under UV light for ease of inspection
  • reworkability with ease
  • IPC-CC-830 compliance
  • RoHS directive 2015/863/EU

Application of 1B66 Conformal Coating

Conformal coatings can be successfully applied to substrates that have been cleaned prior to coating and also to substrates assembled with low residue “no clean” materials. Users should perform adequate testing to confirm compatibility between the conformal coating and their particular assembly materials, process conditions and cleanliness level. Please contact a HumiSeal representative for additional information.

Dipping
Depending on the complexity, density and configuration of components on the assembly, it may be necessary to reduce the viscosity of HumiSeal 1B66 with HumiSeal Thinner 503 in order to obtain a uniform film. Once optimum viscosity is determined, a controlled rate of immersion and withdrawal (typically, 5 to 15 cm/min) will further ensure even deposition of the coating and provide a uniform film. During application, evaporation of solvent causes an increase in viscosity that should be adjusted by adding small amounts of HumiSeal® Thinner 503. Viscosity in the dip tank should be checked regularly using a simple measuring device, such as a Zahn or Ford viscosity cup.

Spraying
HumiSeal 1B66 can be sprayed using conventional spraying equipment. Spraying should be done in an environment with adequate ventilation so that vapor and mist are carried away from the operator. The addition of HumiSeal® Thinner 521 is necessary to ensure a uniform spray pattern resulting in a pinhole-free film. The amount of thinner and spray pressure will depend on the specific type of spray equipment and operator technique. The recommended ratio of HumiSeal 1B66 to HumiSeal Thinner 521 is 1:1 by volume; however, the ratio may need to be adjusted to obtain a uniform coating.

Brushing
HumiSeal 1B66 may be brushed with a small addition of HumiSeal Thinner 503. Uniformity of the film depends on the component density and operator technique.

Product Specification
Density, per ASTM D1475 0.91 ± .02 g/cm3
Solids Content, % by weight per Fed-Std-141, Meth. 4044 35 ± 3 %
Viscosity, per Fed-Std-141, Meth. 4287 200 ± 15 centipoise
VOC 592 grams/litre
Drying Time to Handle per Fed-Std-141, Meth. 4061 10 minutes
Recommended Coating Thickness 25 – 75 microns
Recommended Curing Conditions 24hrs @ RT or 30min @ 76°C
Time Required to Reach Optimum Properties 7 days
Recommended Thinner (dipping & brushing) HumiSeal Thinner 503
Recommended Thinner (spraying) HumiSeal Thinner 521
Recommended Stripper HumiSeal Stripper 1080
Shelf Life at Room Temperature, DOM 24 months
Thermal Shock, 50 cycles per MIL-I-46058C -65°C to 125°C
Coefficient of Thermal Expansion – TMA 175 ppm/°C below Tg

 

345 ppm/°C above Tg

Glass Transition Temperature – DSC 14°C
Modulus – DMA 850 MPa @ 40°C
Dielectric Withstand Voltage, per MIL-I-46058C >1500 volts
Dielectric Breakdown Voltage, per ASTM D149 7500 volts
Dielectric Constant, at 1MHz and 25°C per ASTM D150-98 2.5
Dissipation Factor, at 1MHz and 25°C per ASTM D150-98 0.01
Insulation Resistance, per MIL-I-46058C 8.0 x 1012 ohms (800TΩ)
Moisture Insulation Resistance, per MIL-I-46058C 6.0 x 1010 ohms (60GΩ)
Fungus Resistance, per ASTM G21 Passes
Price Terms︰FOB ShenZhen
Payment Terms︰TT
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