We just sprayed PCBs with UV40 through a selective robotic system. However, we were unable to cure immediately with our UV conveyor and had to wait 3 days whilst the boards were wet. However, they didn’t cure? Why does the UV40 secondary cure mechanism state 2-3 hours pot life?We only had them in light for a short period and they were stored in dark drying cabinets most of the time.

Humiseal UV40 is more sensitive to light than moisture and that is why after 3 days it was still not cured. Also, the humidity level in the drying cabinet was probably quite low. The catalyst in the UV40 should not degrade with time.

The Humiseal UV40 TDS states 2 to 3 hours of pot life if for example you have a dip tank full of UV40 exposed completely to light and moisture. When the viscosity of a conformal coating is increasing by double of its initial value then the pot life has been reached. This is the definition of the pot life. It would still be dippable but you will not have the same consistency (film thickness, homogeneity, etc…)

Click for further information on Humiseal UV4o conformal coating.

UV40 Conformal Coating from Humiseal

HumiSeal’s new 100% Solventless UV Curable Conformal Coating, UV40, is an exciting innovation in UV curable chemistry that provides performance superiority over traditional UV curable products.

Being 100% solventless, the NEW UV40 curable conformal coating not only maintains the speed of cure and environment-friendly nature that is popular in today’s electronic fabrication, it also offers advantages not found in existing UV curable conformal coating products.

Contact SCH for trials on UV curing and Humiseals UV40 conformal coating.

Humiseal UV40 conformal coating for UV cure process

HumiSeal’s new 100% Solventless UV Curable Conformal Coating, UV40, is an exciting innovation in UV curable chemistry that provides performance superiority over traditional UV curable products.

Being 100% solventless, the NEW UV40 curable conformal coating not only maintains the speed of cure and environment-friendly nature that is popular in today’s electronic fabrication, it also offers advantages not found in existing UV curable conformal coating products.

Click for further information on UV40.

Innovative HumiSeal UV40 provides:

Greater adhesion to a wide range of commonly used solder resists

Higher IR (insulation resistance) and MIR (moisture insulation resistance)

Resistance to a wider range of solvents

Greater flexibility at a wide range of temperatures

Does not become brittle at low temperatures

A truly reliable secondary (shadow area) moisture activated cure mechanism!.

Ex-demo and reconditioned conformal coating equipment

SCH have ex-demo and reconditioned conformal coating equipment including a PVA spray conformal coating robot, conformal coating spray booth, conformal coating drying cabinet and a UV curing conveyor for cure of UV conformal coatings and other UV cure materials.

UV curing of conformal coating using UV100 conveyors

UV curing of conformal coatings is becoming increasingly important for high volume users in fields such as automotive and consumer electronics.

This increase in the popularity of UV curable conformal coatings is due to its rapid cure speed, level of processing ease, environmental friendliness and thermal cycling resistance, which have never before been achieved with UV conformal coating materials.

The UV100 UV Curing Conveyor System

The super fast curing times of UV conformal coatings mean that productivity in your conformal coating process can be massively increased.

This means you won’t have wet boards lying around susceptible to contamination from dust and debris, your lead times can be reduced and your customers get their products quicker!

To take advantage of these benefits you need a UV curing system like the UV100 UV conveyor. The UV100 range of UV conveyors are available in modular format:

Various cure widths available (standard 300mm width)

Modular Microwave or Arc lamp technologies available

Benchtop or floor standing conveyors

inline or SMEMA with belt, chain or pin edge conveyor

stainless steel or powder coated framwork

Click here for further information on the UV100 conveyor

UV40 Humiseal Conformal Coating -Instant Curing

 

HumiSeal’s new 100% Solventless UV Curable Conformal Coating, UV40, is an exciting innovation in UV curable chemistry that provides performance superiority over traditional UV curable products.

Being 100% solventless, the NEW UV40 curable conformal coating not only maintains the speed of cure and environment-friendly nature that is popular in today’s electronic fabrication, it also offers advantages not found in existing UV curable conformal coating products.

Click for further information on UV40.

Video of UV conformal Coating of UV40 in UV Cure Conveyor

There is now a Video of a UV Cure Conveyor curing UV40 conformal Coating of UV40 on a circuit board.

UV curing of conformal coatings is becoming increasingly important for high volume users in fields such as automotive and consumer electronics.

This increase in the popularity of UV curable conformal coatings is due to its rapid cure speed, level of processing ease, environmental friendliness and thermal cycling resistance, which have never before been achieved with UV conformal coating materials.

The super fast curing times of UV conformal coatings mean that productivity in your conformal coating process can be massively increased.

This means you won’t have wet boards lying around susceptible to contamination from dust and debris, your lead times can be reduced and your customers get their products quicker!

To take advantage of these benefits you need a UV curing system like the UV100 UV conveyor. The UV100 range of UV conveyors are available in modular format:

Follow the link to see the video of UV40 being cured on a UV cure conveyor.

UV cure conformal coatings – All the FAQs you need!

SCH have a range of FAQs on UV cure conformal coatings and how UV curing works. These FAQs include what is UV radiation, What type of UV light is used in Conformal Coating Inspection and the conformal coating spray booths and what is Humiseal UV40 and how does it differ to solvent and water based coatings like 1R32, 1B31 and 1R32A2?

There are also a range of FAQs on UV conveyors & ovens and how they interact with the UV conformal coatings.

Click here for information on conformal coating UV cure equipment and UV conformal coatings.

UV Conformal coating from Humiseal – the fast way to process

Humiseal have the UV40 range of UV conformal coatings that are allowing high speed processing without solvents.

Humiseal UV40 is a one part, low viscosity, high solids dual cure acrylated polyurethane conformal coating possessing excellent chemical resistance, surface hardness, flexibility and moisture resistance.

Conformal Coating & UV curing

UV curing of conformal coatings is becoming increasingly important for high volume users in fields such as automotive and consumer electronics.

This increase in the popularity of UV curable conformal coatings is due to its rapid cure speed, level of processing ease, environmental friendliness and thermal cycling resistance, which have never before been achieved with UV conformal coating materials.

Click here for UV curing information.