RTLV9669 (50) Silicone conformal coating (single product)

conformal coating PCB conformal coating silicone conformal coating manufacturers

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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 ITEMSPECSSTANDARD
appearanceTransparent   or translucent flowing liquid, no mechanical impuritiesGB1721
Viscosity (25±2℃) Coated -4# cup (s)25±5GB/T6753.4
Solid content (1.5g,120℃*1.5h,wt%)50±2GB1725
Relative density (g/cm3)1.05~1.15GB/T4472-2011
Adhesion (drawing method) level0GB/T9286
pliabilityUp   to standardGB/T   1981.2-2009
Hardness (Shore A)2-3HGB   2411-80
Tensile strength (MPa)≥12.5GB/T33429-2016
Elongation at break (%)≥10GB/T   1040.3-2006
Dielectric constant (100KHz)≥2.5GBT1693
Drying   time

Surface stem (25±2℃,65±5%RH)≤20minGB1728
Work (25±2℃,65±5%RH)≤48h
Heat   resistance21 cycle passJB/T839-88
Salt spray prevention24   hours qualifiedJB1606
Mold proof28   days (Level 0-2) qualifiedGB/T1741-2007
Acid resistance (5% hydrochloric acid solution immersion)24h   qualified/
Alkaline resistance (5% sodium hydroxide solution immersion)24h   qualified/
Hot and cold cycle shockUp to standardIPC-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)≥13JB-906
PV (Ω·cm) normal (23±2℃,65±5%RH)≥2.5×1013GB/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 pieceClean and dry,   insulation resistance and electrical strength meet the design requirements
Paint preparationAccording   to the requirements of customers on the thickness of the film can be used   directly, can also be used with diluent
Spray coatingBake at room temperature or 60℃*5-10   minutes to improve efficiencyKeep the air   pressure as low as possible to avoid bubbles
Dip coatingKeep   the air pressure as low as possible to avoid bubbles≥1min   (preferably without bubbling)
Brush coatingBake   at room temperature or 60℃*5-10 minutes to improve efficiencyBrush   evenly on the workpiece
solidifySurface   drying less than 20min at room temperature24h   curing
Various performance testsIf   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

Civil and Commercial

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.

automotive industry

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.

Aviation navigation

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.

electronic industry

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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