Product composition:
This product is based on methyl organosiloxane as the main body, multiple copolymer copolymer and the corresponding environmental protection solvent after polymerization and grafting modification, and then supplemented by special additives, modifiers and other reactions prepared by the conformal coating.
Product use:
Widely used in thick film circuit system, porous substrate, radar, microwave radio, carrier oscilloscope transformer, PCBA printed circuit board, electronic components, cultural relics, stone carving, calligraphy and painting and other important items protection and machine protection. The product complies with IPC-CC-830, International paint safety standards and EU RoHS testing standards and is UL-94V0 certified.
Product performance:
3.1 It can be cured at room temperature or accelerated by heating (recommended curing temperature ≤80℃);
3.2 Form a tough and wear-resistant protective layer after curing;
3.3 High insulation resistance, high breakdown voltage, arc resistance, electric spark resistance, low dielectric loss, good insulation performance;
3.4 Good temperature change resistance, cold and heat shock resistance;
3.5 Good moisture resistance, insulation and chemical resistance;
3.6 With a unique anti-counterfeiting and fluorescent tracer formula, UV indication can detect whether the coating is complete.
3.7 Excellent boiling resistance, boiling 24h protective layer will not change, good protection performance.
Technical index:
4.1 Reference Standards
The following standards contain provisions which, by reference in this standard, constitute provisions of this standard. This standard shall not be applicable to any dated reference; Any reference standard that does not note the date shall be the reference standard of the new version.
GB 1981-89 Test method for solvent insulating paints
GB/T 15022-94 Definitions and general requirements for solvent-free polymerizable resin composites for electrical insulation
GB/T 15023-94 Test method for solvent-free polymerizable resin composites for electrical insulation
4.2Product requirement
All products shall meet the requirements specified in the following table. If the customer has additional requirements beyond the following table, special instructions shall be given in the order contract.
SPECIFICATION ITEM | SPECS | STANDARD |
appearance | Transparent or translucent flowing liquid, no mechanical impurities | GB1721 |
Viscosity (25±2℃) Coated -4# cup (s) | 25±5 | GB/T6753.4 |
Solid content (1.5g,120℃*1.5h,wt%) | 50±2 | GB1725 |
Relative density (g/cm3) | 1.05~1.15 | GB/T4472-2011 |
Adhesion (drawing method) level | 0 | GB/T9286 |
pliability | Up to standard | GB/T 1981.2-2009 |
Hardness (Shore A) | 2-3H | GB 2411-80 |
Tensile strength (MPa) | ≥12.5 | GB/T33429-2016 |
Elongation at break (%) | ≥10 | GB/T 1040.3-2006 |
Dielectric constant (100KHz) | ≥2.5 | GBT1693 |
Drying time | ||
Surface stem (25±2℃,65±5%RH) | ≤20min | GB1728 |
Work (25±2℃,65±5%RH) | ≤48h | |
Heat resistance | 21 cycle pass | JB/T839-88 |
Salt spray prevention | 24 hours qualified | JB1606 |
Mold proof | 28 days (Level 0-2) qualified | GB/T1741-2007 |
Acid resistance (5% hydrochloric acid solution immersion) | 24h qualified | / |
Alkaline resistance (5% sodium hydroxide solution immersion) | 24h qualified | / |
Hot and cold cycle shock | Up to standard | IPC-TM-650, 2.6.7.1 |
(-50±2℃~200±2℃,100 times) | ||
Moisture resistance | IPC-TM-650, Test Method 2.6.3.4 | |
(Constant temperature 40±5℃ constant humidity 95±5%RH,96h) | Up to standard | |
Moisture resistance | ||
(Constant temperature 85±5℃ constant humidity 85±5%RH,168h) | ||
Dielectric strength (normal) (KV/mm) | ≥13 | JB-906 |
PV (Ω·cm) normal (23±2℃,65±5%RH) | ≥2.5×1013 | GB/T1410 |
Resistance to boiling | ≥24H no change | / |
Note: The turbidity of this product is caused by the addition of defoamer, not due to water or deterioration, and will not affect the quality!
The above data are the test results after the dry film thickness of 100um is coated on the comb electrode plate and the natural curing is 168h. If the customer needs to do any type test, it must ensure that the dry film thickness is not less than 100um and the paint film is completely cured before testing. Curing conditions are normal temperature (25℃, 55%RH) 168h or 60℃*24h.
Construction method:
5.1 Before coating, the coated part shall be purified and the surface of the coated object shall be cleaned.
Remove rust, dust and oil;
5.2 According to the structure and technical requirements of the pre-coated parts, spray coating, dip coating, brush coating construction methods are selected.
Test the application before use to make it more convenient to use, and adjust the coating viscosity by using diluent reasonably according to the requirements of the coating process;
5.3 Put the covered part in the air, it can dry less than 20min at normal temperature. After the skin is formed, it is followed by the curing process from the surface to the inside. Within 24 hours (25±2℃,65±5%RH), the product will cure to a depth of 1~3mm, which can be accelerated by heating (≤80℃,65±5%RH). With the extension of time, the curing depth gradually increased to complete curing;
5.4 Due to the fast drying characteristics of the protective agent, such as dip coating or brush coating process, the paint liquid in the paint tank must be small
Add, and add when you're done. If the viscosity increases, special thinner and fresh paint solution can be used to adjust to the standard viscosity
Degree. If it is not expected to be used within 2 hours, pour the paint into the bucket and seal the lid.
5.5 If the humidity in the construction environment is greater than 80%RH, the water vapor in the environment may cause the paint film to turn white. Please exercise caution and properly heat and bake to remove the influence caused by moisture.
Construction condition:
Condition of the piece | Clean and dry, insulation resistance and electrical strength meet the design requirements | |
Paint preparation | According to the requirements of customers on the thickness of the film can be used directly, can also be used with diluent | |
Spray coating | Bake at room temperature or 60℃*5-10 minutes to improve efficiency | Keep the air pressure as low as possible to avoid bubbles |
Dip coating | Keep the air pressure as low as possible to avoid bubbles | ≥1min (preferably without bubbling) |
Brush coating | Bake at room temperature or 60℃*5-10 minutes to improve efficiency | Brush evenly on the workpiece |
solidify | Surface drying less than 20min at room temperature | 24h curing |
Various performance tests | If it is necessary to do any type of experiment, it is necessary to continue to cure at room temperature for 168 hours after the surface of the experimental sample is dry, in order to obtain excellent test results, and it can also be baked at 60℃ for 24 hours after cooling for testing. |
Matters needing attention:
7.1 The storage environment must be a dry and ventilated room with the temperature ranging from 5 ° C to 35 ° C and relative humidity ranging from 50 to 80%RH
Direct light, the paint should be sealed and stored in a cool, dry place, away from fire and light storage, keep good ventilation.
7.2 The paint is irritating to the skin, avoid direct contact with the skin and eyes, if contact with the skin, please use
Wash with soapy water. In case of contact with eyes, seek medical attention immediately.
7.3 Before use or after thinning, please stir well before use.
7.4 After sizing is completed, the unfinished glue should be tightened and sealed immediately. When used again, if there is a little cleanliness in the seal, it can be removed without affecting normal use. Glue in the storage process, the container mouth may also appear a small amount of curing phenomenon, will be clear after normal use, does not affect the performance of the product. There may be a small amount of precipitation in the storage process, shake well before use, and do not affect product performance;
7.5 The product storage period is 6 months. Beyond the storage period, when the indicators are qualified, it can still be used.
Packaging, storage, transportation:
Iron drum sealed packaging, this product should be stored in a cool and ventilated dry place, isolated from fire, away from heat sources. The storage period is 6 months, beyond the storage period, it is necessary to re-test according to the standard provisions, if the result meets the requirements, it can still be used, the product should be transported to prevent rain, sunlight exposure, and comply with the relevant provisions of the transportation department on the transportation of hazardous chemicals.
Safety and environmental regulations:
This product contains flammable organic solvent, should be used in accordance with the painting operation safety regulations and technical operation specifications, the construction site should be far away from fire, ventilation, fire prevention, anti-static, anti-poisoning and other protective measures.
Packing specification:
15KG/ barrel 24KG/ box (4KG/ tank 6 cans/box)
Application field of conformal coating
conformal coating can provide protection for electronic circuits in household appliances, making them resistant to harmful substances such as water, moisture, insects, etc. in offices and homes. It can be applied to soybean milk machine, coffee machine, Induction cooking, dryer, dishwasher, air conditioner, computer, bathroom electronics, electric car, etc.
The automotive industry requires conformal coating to protect circuits from the hazards of several situations, such as gasoline evaporation, salt spray, brake fluid, etc. The application of electronic systems in automobiles is constantly growing rapidly, so the use of conformal coating has become a basic requirement to ensure the long-term reliability of automotive electronic devices. For example: computer control systems, air conditioning, automotive electronics.
Due to the unique nature of the usage environment, aviation, aerospace, and navigation environments have strict requirements for electronic equipment, especially under fast pressurization and decompression conditions, good circuit performance must still be maintained. The pressure resistance stability of anti paint is therefore widely used. For example, satellite systems, military control systems, flight route control systems, navigation systems, and radar control systems.
conformal coating can protect electronic equipment from water, moisture, external chemicals, and special environmental erosion, ensuring its continuous stability. Its application range is very broad. For example, LED display screens, LED guardrail tubes, solar energy, instruments, power supplies, frequency converters, consumer electronics, anti-theft and fire alarm devices, etc.
Product parameters
Reminder: Support enterprise sample or personalized product customization for conformal coating users: flame retardant, temperature resistant, pressure resistant, thick coated, boiled, quick drying, fluorescent, and odor; The conformal coating meets the coating process of 20um~60um thickness. For customized requirements above 60um, you can directly contact our relevant personnel. Our company has passed the ISO: 9001 international quality management system certification, ISO: 14001 environmental management certification system, and TS: 16949 certification system. The following products comply with Chinese national standards and comply with European, American, and Japanese product standards such as IPC/JIS/UL/ROHS/REACH.
The detailed technical parameters of each product of the conformal coating can be found in its individual product introduction, and there will be no further expansion here
Sharp coating advantages
Support on-site inspections and spot checks of products
•Welcome customers to come to the factory for on-site inspection;
•Support online access to qualification documents such as ISO9001, ISO14001, IPC, JIS, UL, ROHS, REACH, etc;
Localization and nationalization dual mode transportation
•Before transportation, the product needs to undergo five testing processes: packaging pressure, temperature, humidity, sealing and squeezing, and overturning to ensure that the product is not affected by the environment during transportation;
Support on-site inspections and spot checks of products
•Welcome customers to come to the factory for on-site inspection;
•Support online access to qualification documents such as ISO9001, ISO14001, IPC, JIS, UL, ROHS, REACH, etc;
15 day package return and exchange
•If there are quality issues with the product, unconditional original return or exchange within 15 days;
•Provide customers with online consultation, remote guidance, and other services within one year;
Ritop strength
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