HumiSeal 1A20 conformal coating
HumiSeal 1A20 Description
- HumiSeal 1A20 is a single component, chemically resistant, fast curing polyurethane conformal coating.
- HumiSeal 1A20 fluoresces under UV light for ease of inspection. HumiSeal 1A20 coating is MIL-I-46058C qualified, IPC-CC830 and RoHS Directive 2002/95/EC compliant and recognized under UL File Number E105698.
Technical data of HumiSeal 1A20 (TDS)
| Thông số | Giá trị |
|---|---|
| Density | 1.02 ± 0.02 g/cm³ |
| Solids Content | 50 ± 3 % by weight |
| Viscosity | 100 ± 30 centipoise |
| VOC | 511 grams/litre |
| Recommended Coating Thickness | 25 - 75 microns |
| Drying Time to Handle | 60 minutes |
| Time Required to Reach Optimum Properties | 7 days |
| Thinner, if needed (dipping, brushing, spraying) | HumiSeal® Thinner 521, 521EU |
| Recommended Stripper | HumiSeal® Stripper 1072 |
| Shelf Life at Room Temperature, DOM | 6 months |
| Thermal Shock | -65°C to 125°C |
| Coefficient of Thermal Expansion - TMA | 515 ppm/°C |
| Glass Transition Temperature - DSC | 71°C |
| Modulus - DMA | 89.6 MPa |
| Flammability | per UL94 V-0 |
| Insulation Resistance, per MIL-I-46058C | 3.0 x 1014 ohms (300TΩ) |
| Moisture Insulation Resistance, per MIL-I-46058C | 4.8 x 1010 ohms (48GΩ) |
| Fungus Resistance | per ASTM G21 Passes |
| Resistance to Chemicals | Excellent |
Application of HumiSeal 1A20
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, flux residues and all other contaminants. Contamination under the coating could cause problems that may lead to assembly failures.
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 1A20 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 1A20 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.
Brushing
HumiSeal 1A20 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 1A20 should be stored away from 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
It should be carried out in accordance with local and National Health and Safety regulations.
Where to buy HumiSeal 1A20 ?
As an authorized distributor, Hicotech provides genuine HumiSeal 1A20 and various other industrial products including lubricating oils, greases, chemicals, and more. We offer consultation services and competitive pricing. Please don't hesitate to contact us for further information.
In addition, we also distribute other product categories such as:
- Industrial chemicals
- Cleaning Chemicals
- Encapsulants
- SMT equipment
- Conformal coatings
- Industrial Accessories
Contact Information:
Hotline/Zalo. 094 526 1931
Website. Hicotech.com.vn
Email: Sale@hicotech.com.vn
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