HumiSeal 1A20R

Drescription Humiseal 1A20R

HumiSeal 1A20R is a single component, chemically resistant, fast curing polyurethane conformal coating. HumiSeal 1A20R fluoresces under UV light for ease of inspection. HumiSeal 1A20R coating is MIL-I-46058C qualified, IPC-CC-830 and RoHS Directive 2002/95/EC compliant.

Ready-to-Use Product Type: Conformal Coating, 1K (1 component) Coating

Features: Easy To Modify, Excellent Moisture Resistance, Fast Drying, UV Detectable, Chemical Resistant, Conformable

Application Area: Printed Electronics

Application Method: Brush, Dip Coating, Spray

Chemical Family: Polyurethanes (PU)

Technical data of Humiseal 1A20R

Application of HumiSeal 1A20R

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.

• Otherwise, ionic or organic residues on the substrate could be trapped under the coating and cause problems with adhesion or electrical properties.
• The highest long term reliability for a coated printed circuit assembly will be when the conformal coating is applied over a clean, dry substrate.
• 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 us for additional information Although its formulation allows HumiSeal 1A20R to be applied using a wide variety of methods, care should be taken to ensure that it is only applied in an environment where the ambient relative humidity is at 60% or less.
• Application of the coating when the RH is higher than 60% can cause acceleration of the cure reaction, resulting in bubbles in the dried film.

Dipping

• Depending on the complexity, density and configuration of components on the assembly, it may be necessary to reduce the viscosity of HumiSeal 1A20R with HumiSeal Thinner 521 or 521EU in order to obtain a uniform film.
• Once optimum viscosity is determined, 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 521 or 521EU.
• Viscosity in the dip tank should be checked regularly, using a simple measuring device such as a Zahn or Ford viscosity cup

Spraying

HumiSeal 1A20R can be applied using conventional spraying equipment. Ensure that spraying is carried out in a well-ventilated environment to effectively disperse vapors and mist away the operator.

• To achieve a consistent, pinhole-free film, it's important to incorporate HumiSeal Thinner 521 or 521EU the mixture.
• The quantity of thinner required and the appropriate spray pressure will vary based on the specific spray equipment being used and the operator's technique.

The recommended mixing ratio of HumiSeal® 1A20R to HumiSeal® Thinner 521 or 521EU is 5 parts 1A20R to 2 parts Thinner by volume. However, it's worth noting that this ratio might need to be adjusted to achieve an even coating.

Brushing

• HumiSeal 1A20R may be brushed with a small addition of HumiSeal® Thinner 521 or 521EU.
• Uniformity of the film depends on component density and operator's technique.

Storage

HumiSeal products may be stored at temperatures of 0 to 35°C. HumiSeal 1A20R should be stored away sunlight and excessive heat, in tightly closed containers.

• If coatings are partially used, the container should be purged with dry nitrogen prior to resealing.
• Prior to use, allow the product to equilibrate for 24 hours at a room temperature of 18 to 32°C.

Caution

• Application of HumiSeal Conformal Coatings should be carried out in accordance with local and National Health and Safety regulations.
• The solvents in HumiSeal 1A20R are flammable. Material should not be used in presence of open flame or sparks.
• Use only in well-ventilated areas to avoid inhalation of vapours or spray. Avoid contact with skin and eyes.

Where to buy authentic HumiSeal 1A20R ?

Thanks to our strong reputation, Hicotech has earned the trust of numerous customers. Feel free to reach out to us for expert consultation and to avail the best pricing for the HumiSeal 1A20R  product.

Contact information

Hotline/Zalo. 094 526 1931

Website. Hicotech.com.vn

Email: Sale@hicotech.com.vn