

HumiSeal 1B15 Transparent Acrylic CoatingAvailability: Ready to Ship Next Business Day International Orders ![]() Part#: 1B15QT by HumiSeal |
An air drying, single component, acrylic base system suitable for general purpose coating of printed circuit assemblies. The cured coating is readily repairable. Also available in spray cans. Cleanliness of the substrate is of extreme importance for the successful application of a conformal
coating. Surfaces must be free of moisture, dirt, wax, grease and all other contaminants. Contamination
under the coating will cause problems, which may lead to assembly failures.
HumiSeal coatings may be applied by brush, dip or spray. Dipping Depending on the complexity, density and configuration of components on the assembly, it may be necessary to reduce the viscosity of HumiSeal 1B15 with HumiSeal Thinner 503 in order to obtain a uniform film. Once optimum viscosity is determined, a controlled rate of immersion and withdrawal (2 to 6" per minute) will further insure even deposition of the coating and ultimately a uniform film. During the application, evaporation of solvent causes an increase in viscosity, which should be adjusted by adding small amounts of Thinner 521. Viscosity in the dip tank should be regularly checked by the use of a simple measuring device such as a Zahn or Ford viscosity cup. Spraying HumiSeal Type 1B15 can be sprayed using conventional spraying equipment. As a rule, the addition of Thinner 521 is necessary to assure a uniform spray pattern resulting in pinhole free film. The amount of thinner and spray pressure will depend on the specific type of spray equipment used. The spraying should be done under an exhaust hood so that the vapour and mist are carried away from the operator. The recommended ratio of HumiSeal Type 1B15 to HumiSeal Thinner 521 is 1 to 1 by volume, as a starting point. The quantities may be adjusted to obtain a uniform coating. Brushing HumiSeal Type 1B15 may be brushed with a small addition of HumiSeal Thinner 503. Uniformity of the film depends on component density and operator's technique. Storage HumiSeal Type 1B15 should be stored at room temperature, away from excessive heat, in tightly closed containers. HumiSeal products may be stored at temperatures of -18°-38°C. Avoid direct sunlight. Prior to use, allow the product to equilibrate for 24 hours at 18-32°C. Caution Liquid HumiSeal coatings are flammable. Do not use in presence of open flame or sparks. Avoid inhalation of vapours or spray. Use only in well-ventilated areas. Avoid contact with skin and eyes. If contact occurs, wash with soap and water. If swallowed, call physician immediately. Refer to MSDS before use. Overall Rating for HumiSeal 1B15 Transparent Acrylic Coating
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Product Details | |||
SpecificationsProperties of Liquid HumiSeal
Properties of Cured HumiSeal Thermal Properties
Physical Properties
Electrical Properties
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