HumiSeal 1R32A-2 Description
- HumiSeal 1R32A-2 is a fast drying, single component acrylic coating, formulated for improved adhesion to typical substrates while providing excellent moisture and environmental protection for printed circuit assemblies.
- HumiSeal 1R32A-2 fluoresces under UV light for ease of inspection and is easily repaired.
- HumiSeal 1R32A-2 is in full compliance with IPC-CC-830 and the RoHS Directive 2002/95/EC, and is recognized under UL File Number E105698.
Technical data of HumiSeal 1R32A-2
Property | Value |
---|---|
Density, per ASTM D1475 | 0.91 ± 0.02 g/cm³ |
Solids Content, % by weight | 29 ± 3 % per Fed-Std-141, Meth. 4044 |
Viscosity, per Fed-Std-141, Meth. 4287 | 220 ± 30 centipoise |
VOC | 645 grams/litre |
Drying Time to Handle | 10 minutes per Fed-Std-141, Meth. 4061 |
Recommended Coating Thickness | 25 - 75 microns |
Recommended Curing Conditions | 24 hrs @ RT or 30 min @ 76°C |
Time Required to Reach Optimum Properties | 7 days |
Recommended Thinner (dipping & brushing) | HumiSeal® Thinner 503, 505 |
Recommended Thinner (spraying) | HumiSeal® Thinner 521, 521EU, 600 |
Recommended Stripper | HumiSeal® Stripper 1080, 1080EU |
Shelf Life at Room Temperature, DOM | 24 months |
Thermal Shock | 50 cycles per MIL-I-46058C |
-65°C to 125°C | |
Coefficient of Thermal Expansion - TMA | 170 ppm/°C below Tg |
340 ppm/°C above Tg | |
Glass Transition Temperature - DSC | 14°C |
Modulus - DMA | 2000 MPa @ -40°C |
1050 MPa @ 20°C | |
8.5 MPa @ 60°C | |
Flammability, per UL 94 | V-0 |
Dielectric Withstand Voltage | >1500 volts per MIL-I-46058C |
Dielectric Breakdown Voltage | 7500 volts per ASTM D149 |
Dielectric Constant, at 1MHz and 25°C | 2.5 per ASTM D150-98 |
Dissipation Factor, at 1MHz and 25°C | 0.01 per ASTM D150-98 |
Insulation Resistance | 8.0 x 10^14 ohms (800TΩ) per MIL-I-46058C |
Moisture Insulation Resistance | 6.0 x 10^10 ohms (60GΩ) per MIL-I-46058C |
Fungus Resistance | Passes per ASTM G21 |
Application of HumiSeal 1R32A-2
- 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.
Dipping
- Depending on the complexity, density and configuration of components on the assembly, it may be necessary to reduce the viscosity of HumiSeal 1R32A-2 with HumiSeal Thinner 503 or 505 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.
Spraying
- HumiSeal 1R32A-2 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 the operator.
- The addition of HumiSeal Thinner 521, 521EU or 600 is necessary to ensure a uniform spray pattern resulting in pinhole-free film.
Brushing
- HumiSeal 1R32A-2 may be brushed with a small addition of HumiSeal Thinner 503 or 505.
- Uniformity of the film depends on component density and operator's technique.
Storage
- HumiSeal 1R32A-2 should be stored away 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 notes of HumiSeal 1R32A-2
- HumiSeal 1R32A-2should be carried out in accordance with local and National Health and Safety regulations.
- The solvents in HumiSeal Conformal Coatings 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 HumiSeal 1R32A-2 authentic:
With our reputation, Hicotech has gained the trust of many customers. Contact us now for consultation and to receive the best price for HumiSeal 1R32A-2 product.
Contact Information:
Hotline/Zalo. 094 526 1931
Website. Hicotech.com.vn
Email: Sale@hicotech.com.vn
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