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With the progress anddevelopment of tehnlgy, electronic products have gained inreasing applications. The requre ments nminiaturizationanddensityftheicomonents havealsoicreased,whilethenvironment thyperate inas becomemorecomplex anddiverse.Allthesemposehigherrequirementsforthereliabilityand stabilityfelectronic productsCnfmalcaticanrvithprtetiayeprtt lejntptlandthres prevent the circuit board against moisture, salt spray, corrosive gas and other factors.
Currentlythere arevarioussystems and products availablefor conformal coating selection. In terms of compound type, they are mainly divided into polyurethane, silicone, acrylic, epoxy, poly-p-xylylene and other types. In terms of application method, there are spraying, dipping,brushing, etc. In addition, the curing processes include moisture curing,heat curing, light curing and so on. Each product has its unique features and process requirements.To achieve effective protection during use,it is crucial to consider the specific requirements, choose the suitable product, and adopt the correct application process.
WithahistryfoveyearsHtianposs strong npenntR&,prdutionand sal strngthts produt widelyused inlectronics, automotive, ransportation,home appliances, nwnergyandothr sectors, committt providingcutomers withsystemati solutionsnthefieldofconformalcoatin,Huitianalsooffers diverserangef products and supporting solutions, frm polyurethane to silicoe, andfrmheat curing tUVcuring, providing custos with professional services and solutions.
Overview of conformal coating
UL CertificationE310258
IPC830B Standard
RoHS Directive, REACH Certification and other environmental indicators
Polyurethane system
Excellent moisture resistance Excellent electrical insulation * Good resistance to solvents,salt spray corrosion and chemicals * Good wear resistance and adhesion
UV system
Excellentmoisture resistance Excellent electrical insulation * Good resistance tosolvents,salt spray corrosion and chemicals * Goodwearresistance and adhesion * Fast curing * 100% solid content, VOC-free, eco-friendly \blacktriangle Moisture secondary curing is available for the shadow part
Silicone system
* Wide temperature range, excellent high temperature resistance * Goodflexibility and crash resistance * Excellent resistance toUV/visible light * Excellent dielectric properties and insulation properties * Low surface tension, good substrate wettability
Productfeatures
\bullet Low odor,translucent, flexible,high-performance modified polyurethane conformal coating, which is aromatic solvent-r frilaxlnubardttiall boards working in highhumidityThe product has excellent adhesion toallkinds ofboards, wideworking tperatre range, excelnt ultion pertis, ad odwatadistue ristanceMrve it contafresent ca which facilitates observation and detection.
Typical applications
\blacktriangle Protection of circuit boards and various electronic components against water,moisture,dust,moldgrowth and salt spray,insulation protection, etc.
Diluent 1040 Colorless, translucent, fast volatilization
Cleaner 1050 Colorless, translucent, fast drying type
* Reworking agent 1060 Colorless, translucent, efficient type
\blacktriangle Mainly used for inverters, charging piles,frequency converters, automotive electronics,communicationbase stations,UPSpower supply and other fields
Productfeatures
\blacktriangle Single-component, UV/moisture curing conformal coating. The product features no solvent, low viscosity, easy spraying,fast curing ecnmyand ecfrindiness suitabilityfvaious sraying proces andverywissit canbe used to coat UV conformal coating film, and is also suitable forwater curtain spraying process. It also features excellent ristancetwatemisture andchmicaorroion, adxcllenttricalulatinrevr it cta fluorescent indicator which facilitates observation and detection.
| Product name | Appearance | Solid content (W%) | Viscosity 25℃ (mPa·s) | Tack-free time (25°℃) | Curing time (80°℃) | Surface resistance (Ohm/cm) | Flexibility | Working temperature (°C) | Reworkability |
| 942201 | Brown, translucent | 37±2 | 45 | 10-15min | 8-10min | >1013 | -65~130 | Cleaner 105d can | |
| 942202 | trariwent | 43±2 | 100 | 10-15min | 8-10min | >1013 | -65~130 | ||
| 942203 | transwent | 47±2 | 500 | 15-20min | 10-15min | >1013 | -65~130 | ||
| 943201 | Brown, translucent | 37±2 | 45 | 10-15min | 8-10min | >1012 | -65~140 | After curing,the coatingfilmcan beremovedwith effective roworking agent | |
| 943202 | Brown, translucent | 40±2 | 100 | 10-15min | 8-10min | >1012 | -65~140 | ||
| 943203 | trarsiwent | 47±2 | 500 | 15-20min | 10-15min | >1012 | -65~140 |
Typical applications
Cleaner1050
\blacktriangle Protection of circuit boards and various electronic components against water, moisture, dust, mold growth and salt spray, insulation protection,etc.,especially for protection of circuit boards working in harsh environments
Colorless, translucent, fast drying type
Reworking agent1060
\bullet Mainly used for intelligent home appliances, automotive electronics,consumer electronics,5G communication,industrial control and otherfields
Colorless, translucent, efficient type
| Product name | Appearance | Curing energy (J/cm2) | Viscosity 25℃ (mPa·s) | Curing method | Flash point (°C) | Surace resistance (Ohm/cm) | Flexibility | Working temperature (°C) | Reworkability |
| 361216 | Ligaht yelnt, | 1-3 | 100 | >90 | >1014 | -65~135 | Cleaner 1050 can be used to clean | ||
| 3612H3 | Light yelnw, | 1-3 | 300 | >90 | >1014 | -65~135 | theconformal coating during use | ||
| 3612H6 | Ligah yeewt | 1-3 | 700 | >90 | >1014 | -65~135 | Aftergring,thne beremovedwith effective | ||
| 3612HV | Ligans yelnt, | 1-5 | 600 | >90 | >1014 | -65~135 | reworking agent |
Productfeatures
\blacktriangle Single-component, rm temperature curing, elastoplastic silicone conformal coating, with high curing speed (curing can alsobe facilitatedbyheating)The product has medum viscsity, and is suitale foravarityof processes suhas brushing, spraying and dipping. After curing, a translucent elastic protective fl with certain hardness and wear resistanceisformed. he product has ood adhesiontvarious circuit boards and features good high and lw temrature resistance andflame retardance.Moreover, it contains fuorescent indicatorwhich facilitates observation and detection.
Typical applications
Diluent1045
\blacktriangle Protection of circuit boards and various electronic components againstwater,moisture,dust,moldgrowth andsalt spray,insulation protection, etc.
Colorless, translucent, good matching process
\blacktriangle Mainlyused for automotive electronics,lighting,power supply and other fields.
| Product name | Appearance | Solid content (W%) | Viscosity 25°℃ (mPas) | Tack-free time (mins) | Heat curing time (40-60°℃) | Dielectric strength (kV/mm) | Volume resistivity (Ohm/cm) | Working temperature (°℃) | Flexibility | Reworkability |
| 9415 | Transparet, | 70 | 900 | ≥16 | ≥1015 | -60~200 | Difficult/physical | |||
| 9415LV Transarent. | 40 | 900 | ≥16 | ≥1015 | -60~200 | |||||
| 9415L | Transparst, | 55 | 300 | ≥16 | ≥1015 | -60~200 | ||||
| 9416 | Transparent, colorless | 99 | 500 | ≥16 | ≥101s | -60~200 |
Conformal coating spraying laboratory
