HUMISEAL 1B31/521-PB23 pre-blend acrylic 5 litri

Humiseal 1B31/521-PB23 Pre-Blend Acrylic 5lt

HumiSeal 1B31 is a fast drying, single component, acrylic conformal coating that provides excellent moisture and environmental protection for printed circuit assemblies.

HumiSeal 1B31 is also produced as pre-blended products, at a range of viscosities, suitable for a variety of applications.
HumiSeal 1B31, and its Pre-blends, demonstrate excellent flexibility, fluoresce under UV light for ease of inspection and are easily repairable.

HumiSeal 1B31 coating is MIL-I-46058C qualified, IPC-CC-830 and RoHS Directive 2011/65/EU compliant.

After complete cure, the properties of HumiSeal 1B31 Pre-Blends and HumiSeal 1B31 are comparable

 

Application of HumiSeal® 1B31 Pre-blend Products
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.
HumiSeal® 1B31 Pre-blends are specifically diluted to a viscosity for immediate use. No additional dilution is required. Customers should establish which pre-blend is suitable for their equipment and application method before commercial use. HumiSeal® Technical Support should be contacted if any further advice on pre-blends and equipment is required.

Dipping
A controlled rate of immersion and withdrawal (5-15 cm/min) will further ensure even deposition of the coating and ultimately a uniform film. During the 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® 1B31 Pre-blends are available which can be sprayed using conventional spraying equipment. Spraying should be done in an environment with adequate ventilation so that the vapour and mist are carried away from the operator. The specific pre-blend used and the pressure applied will depend on the specific type of spray equipment used and operator technique.
Brushing
HumiSeal® 1B31 Pre-blends are available which may be brushed onto surfaces. Uniformity of the film depends on specific pre-blend chosen and operator's technique.
Storage
HumiSeal® 1B31 Pre-blends 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.