NanoProof® 1.0 Features
Water Contact Angle: 100°
Oil Contact Angle: 13°
Conductivity: Film is non conductive; Make electrical contact through barrier
Thickness: 200nm; <200nm when sprayed
Preferred Application Method: Spray
Includes UV Tracer?: Yes.
Cure Required?: No, NanoProof® does not require a cure.
Chemical Compatibility: NanoProof® 1.0 is confirmed compatible with Aqueous Solvents of pH 6.5-8.5. More extreme acids and bases have not been tested to confirm impacts but it is not expected that aqueous solvents between PH of 2-10 should be problematic for the NanoProof® encapsulants. However, NanoProof® 1.0 is not compatible with Organic Solvents.
ROHS & REACH compliant?: Yes.
While Aculon® NanoProof® PCB Water Protection Treatment can be handled after treatment during assembly, it is not meant for long term abrasion exposure and durability that would be experienced by a permanently exposed PCB.
Aculon® NanoProof® PCB Water Protection Treatment is stable to 250C before the chemical structure is damaged and performance impacted. There is no known lower temperature threshold which damages the treatment.
NanoProof® 1.0 is confirmed compatible with Aqueous solvents of pH 6.5-8.5. More extreme acids and bases have not been tested to confirm impacts but it is not expected that aqueous solvents between PH of 2-10 should be problematic for the NanoProof® encapsulants.
NanoProof® 1.0 is not compatible with petroleum based solvents, as they will be dissolved and removed. As such, petroleum based solvents can be used to remove these specific NanoProof® for rework.
NanoProof® 1.0 is not compatible with fluorosolvents. As such, fluorosolvents can be used to remove these specific NanoProof® for rework.
How To Apply NanoProof® 1.0
Step 1: Clean
Parts must be sufficiently clean prior to treatment for proper bonding and effective application. See “Cleaning” tab for more detail.
Step 2: Treat
Spray – preferred method for 1.0
Apply Aculon® NanoProof® PCB Water Protection Encapsulants via spray gun. Aculon® NanoProof® PCB Water Protection Treatment comes in 1L Bottles for spray applications. Spray application typically results in treatment thickness of 50 nm – 20 µm depending on process parameters and chemistry selected.
- Spray & Dispense Valve – The PVA FCS300 Valve has been tested and confirmed compatible with all NanoProof® products. Download TDS
- Manual System – The PVA MCCS-SYS-1 Manual Conformal Coating System has been tested and confirmed compatible with all NanoProof products. Download TDS
- Automated & Selective Treatment – The PVA Delta 8 Selective Coating / Dispensing System has been tested and confirmed compatible with all NanoProof® Products. Download TDS
Dip – optional method for 1.0
Fully immerse the part in the Aculon® NanoProof® PCB Water Protection Treatment solution for 30 seconds. Withdraw the part at a steady rate to ensure even coverage. Allow to dry or cure depending on your substrate. Aculon® NanoProof® PCB Water Protection Treatments come in convenient 1L quantities for dipping applications.
Utilization of Multiple Options
Please note that many customers have found significant success utilizing two or more of the available NanoProof® technologies successfully. Often times, the most sensitive components benefit from the most robust NanoProof® technology (5.1, 7.0, or 8.4) while the remaining components can be coated with the less robust treatments to benefit from their electrical push through capability, flexible nature and lower costs!
All NanoProof® products contain a UV Tracer which is visible under 365nm wavelength UV light (Detectable by both the human eye and automated detection systems). Please note that soldermasks and other substrate materials containing a UV tracer may make accurate detection of NanoProof® difficult.
Removal Solvents for Rework
Aculon recommends the below solvents for removal of NanoProof® from your board should rework be necessary.
NanoProof® 1.0 : Hydrocarbon solvents
Plastic Part Compatibility
Please refer to these general guidelines to determine if the NanoProof® product you are working with is compatible with your plastic parts that will come into NanoProof® in your manual or automated systems(tubing, pumps, gaskets, etc). Please note these are general guidelines for compatibility and it is recommended you test to confirm prior to implementation as Aculon® can not guarantee compatibility with your specific part.
- Compatible: PTFE, PET, Viton
- Not Compatible: HDPE, LDPE, Polyurethane, PVC, Tygon, Noryl, ABS, PP, Polyphenol ethylene ether, silicone, neoprene, EPM, natural rubber
Masking Tape Compatibility
Please refer to these general guidelines to determine if the NanoProof® product you are working with to determine masking tapes that are compatible.
Not Compatible: All known masking tapes and pastes. NanoProof® 1.0, 2.0, and 4.0 are specifically designed so that masking is almost never needed. If you require masking, a mask that is not damaged by hydrocarbon solvents will be required. Aculon is not aware of a compatible mask at this time.
A properly cleaned and prepared surface is imperative for Aculon® NanoProof® PCB Water Protection Treatment to properly bond with the surface and offer desired performance. The level of cleanliness can play a role in performance and durability/lifetime of the treatment. Cleaning Methods can be summarized into Good, Better, & Best Options. The below cleaning options assume that the part to be treated has been sufficiently degreased and cleaned of all visual contaminants first.
- Blow the part clean with oil free compressed air
- Rinse with IPA or other appropriate cleaning solvent
- Use an appropriate Kyzen cleaner
- clean room construction and a combination of the above
Have a high volume or complicated process and are not sure what level of cleaning your parts require? Contact Aculon® and we will work with you to determine the level of cleanliness needed for your application and to determine a cleaning method that fits your process.
Which application process is better? Dispensing, manual spray, or dipping?
ANSWER: In general spray is often preferred for application of 1.0.
Can you dip coat unsealed switches?
ANSWER: Yes, with NanoProof® 1.0, there is no problem with this.
Do we have measured viscosities of the various treatments?
ANSWER: For NanoProof® 1.0 it is very low, less than a centipoise.
Does the applied thickness impact conductivity?
ANSWER: NanoProof® 1.0 will be able to push through (allowing electrical connections to be made) with no impact to conductivity.
Do the treated surfaces remain solderable or can you solder through a treated PCBA?
ANSWER: Yes, NanoProof® 1.0 is possible to solder through a treated PCB.
Do these products have low boiling points?
ANSWER: The boiling point for NanoProof® 1.0 is in the 90 – 100°C range.
Can a regular test tape be used to test for adhesion?
ANSWER: An adhesion tape test is not really relevant for NanoProof® 1.0 – it is actually still semi-liquid once it is down.
How do you suggest I test if a water proof encapsulant is needed for my part? Also, How do I determine which NanoProof® meets my performance needs?
ANSWER: Determine the level of exposure and performance you want the part to pass– connect the device (board), turn the power on the unit and test against those conditions.
If you want something very simple for humidity – go with something straightforward like NanoProof® 1.0.