HumiSeal® 1A67 conformal coating is:
- Polyester urethane chemistry
- chemically resistant
- single component
- toluene free
- low toxicity product
- used in combination with Thinner 600
HumiSeal 1A67 conformal coating has:
- excellent moisture and environmental protection for printed circuit assemblies
- excellent flexibility and long term electrical properties
- low gas permeability
- fluorescence under UV light for ease of inspection
- RoHS directive 2015/863/EU
Application of 1A67 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 HumiSeal® for additional information.
The application of conformal coatings over no clean flux is a common practice. The user should perform adequate testing to confirm compatibility between the conformal coating and their particular assembly materials and process conditions. Please contact HumiSeal for additional information
HumiSeal® 1A67 can be sprayed using conventional spraying equipment. Spraying should be done in an environment with adequate ventilation so that the vapor and mist are carried away from the operator. The addition of HumiSeal® Thinner 600 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 used and operator technique.
HumiSeal® 1B67 may be brushed with a small addition of HumiSeal® Thinner 600. Uniformity of the film depends on the component density and the operator’s technique.
HumiSeal® 1A67 should be stored away from excessive heat or cold, in tightly closed containers. HumiSeal® products may be stored at temperatures of 0 to 35°C. Prior to use, allow the product to equilibrate for 24 hours at a room temperature of 18 to 32°C.
Application of HumiSeal® Conformal Coatings should be carried out in accordance with local and National Health and Safety regulations.
The solvents in HumiSeal® Conformal Coatings are flammable. The material should not be used in presence of open flame or sparks. Use only in well-ventilated areas to avoid inhalation of vapors or spray. Avoid contact with skin and eyes.
Consult MSDS/SDS prior to use.
|Density, per ASTM D1475||0.92 g/cm³|
|Solids Content, % by weight per Fed-Std-141, Meth. 4044||30 %|
|Viscosity, per Fed-Std-141, Meth. 4287||750 ± 350 centipoise|
|Drying Time to Handle per Fed-Std-141, Meth. 4061||25 minutes|
|Recommended Coating Thickness||25 – 75 microns|
|Recommended Curing Conditions||20 hrs @ 80°C|
|Time Required to Reach Optimum Properties||7 days|
|Recommended Thinner||HumiSeal® Thinner 600|
|Recommended Stripper||HumiSeal® Stripper 1063|
|Glass Transition Temperature – DSC||55°|
|Shelf Life at Room Temperature, DOM||12 months|
|Dielectric Withstand Voltage, volts per MIL-I-46058C||>1500|
|Insulation Resistance, per MIL-I-46058C||6.93 x 1012 ohms (6.93TΩ)|
|Moisture Insulation Resistance, per MIL-I-46058C||6.9 x 1010 ohms (69GΩ)|