Stripping of Humiseal Conformal Coatings Using the WS100 Conformal Coating Wet Removal System

The removal of humiseal conformal coatings such as 1B31, 1R32A2, 1B73 and 1A33 can be completed using the WS100 Conformal coating wet stripping system.

Stripping of unwanted conformal coating from a PCB can be a simple process but depends on what conformal coating is to be removed or stripped, the area of coating to be removed, where the conformal coating is and the type of components on the board.

The WS100 Conformal coating Stripping System has been designed for complete removal & stripping of conformal coating from circuit boards.

The WS100 consists a workstation of four tanks contained behind a safety screen, filled with appropriate stripping materials for the conformal coating material to be removed.

The principle of operation is that the circuit board to be stripped is manually placed by the operator in the first of the tanks for initial ‘rough’ removal and softening of the coating. Each tank has a rinse pipe and solvent pump fitted for gentle circulation and rinsing of the fluid and the operator working behind the safety screen is able to gradually remove the majority of coating, leaving a small amount of residue remaining.

Click for the video for the WS100 Conformal Coating Wet stripping System.

Click for the brochure for the WS100 Conformal coating Wet Stripping system.

Humiseal Conformal Coating Stripping Materials 1080A and 1063 used in Conformal Coating Video

Stripping of unwanted conformal coating from a PCB can be a simple process but depends on what conformal coating is to be removed or stripped, the area of coating to be removed, where the conformal coating is and the type of components on the board.

Humiseal 1080A can be used to remove all acrylic conformal coatings including Humiseal 1B31, 1R32, 1R32A2, 1B73 and 1B18 and Electrolube HPA. Humiseal 1063 can be used to remove polyurethane conformal coatings such as 1A33, 1A68 and Electrolubes SCC3.

Click for the video for the WS100 Conformal Coating Wet stripping System.

Click for the brochure for the WS100 Conformal coating Wet Stripping system.

For conformal Coatings what is the best wavelength range for optimal stimulation of the fluorescent effect in the conformal coating?

The optical brightener will glow at a wavelength range between 300-400nm. That is what most of the manufacturer of UV lights are specifying in their tubes. However its maximum peaks are at 365nm and 450nm.

Click for further information on Humiseal conformal coatings.

1B73LOC Humiseal Acrylic Conformal Coating from SCH

Humiseal 1B73LOC solvent based conformal coating is a UL and mil spec qualified single component acrylic conformal coating.

Humiseal have a range of acrylic conformal coating materials that are commercial grade, UL and mil spec qualified for all areas of conformal coating application.

The acrylic conformal coatings included in Humsiseal’s range include solvent and water based conformal coatings. 

For the solvent based coatings there are 1R32, 1R32A2, 1B12, 1B31, 1B66, 1B73 and 1B18 plus variations on solvent content such as 1B73EPA, 1B73LOC, 1B31EPA, 1B31LOC .

The technical datasheets for 1R32, 1R32A2, 1B12, 1B31, 1B66, 1B73, 1B18, 1B73EPA, 1B73LOC, 1B31EPA and 1B31LOC solvent based acrylic conformal coatings are available on SCH’s website.

Click for further information on the solvent based acrylic conformal coatings.

For the water based coatings there are 1H20 AR1/S, 1H20 AR1/D, 1H20 AR3/S  and 1H20 AR3/D.

The technical datasheets for 1H20 AR1/S, 1H20 AR1/D, 1H20 AR3/S  and 1H20 AR3/D water based acrylic conformal coatings are available on SCH’s website.

Click for further information on the water based acrylic conformal coatings.

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.

1B73EPA Humiseal Acrylic Conformal Coating from SCH

Humiseal 1B73EPA solvent based conformal coating is a UL and mil spec qualified single component acrylic conformal coating.

Humiseal have a range of acrylic conformal coating materials that are commercial grade, UL and mil spec qualified for all areas of conformal coating application.

The acrylic conformal coatings included in Humsiseal’s range include solvent and water based conformal coatings. 

For the solvent based coatings there are 1R32, 1R32A2, 1B12, 1B31, 1B66, 1B73 and 1B18 plus variations on solvent content such as 1B73EPA, 1B73LOC, 1B31EPA, 1B31LOC .

The technical datasheets for 1R32, 1R32A2, 1B12, 1B31, 1B66, 1B73, 1B18, 1B73EPA, 1B73LOC, 1B31EPA and 1B31LOC solvent based acrylic conformal coatings are available on SCH’s website.

Click for further information on the solvent based acrylic conformal coatings.

For the water based coatings there are 1H20 AR1/S, 1H20 AR1/D, 1H20 AR3/S  and 1H20 AR3/D.

The technical datasheets for 1H20 AR1/S, 1H20 AR1/D, 1H20 AR3/S  and 1H20 AR3/D water based acrylic conformal coatings are available on SCH’s website.

Click for further information on the water based acrylic conformal coatings.

Humiseal 1B73 Solvent Based Acrylic Conformal Coating from SCH

Humiseal 1B73 solvent based conformal coating is a UL and mil spec qualified single component acrylic conformal coating.

Humiseal have a range of acrylic conformal coating materials that are commercial grade, UL and mil spec qualified for all areas of conformal coating application.

The acrylic conformal coatings included in Humsiseal’s range include solvent and water based conformal coatings. 

For the solvent based coatings there are 1R32, 1R32A2, 1B12, 1B31, 1B66, 1B73 and 1B18 plus variations on solvent content such as 1B73EPA, 1B73LOC, 1B31EPA, 1B31LOC .

The technical datasheets for 1R32, 1R32A2, 1B12, 1B31, 1B66, 1B73, 1B18, 1B73EPA, 1B73LOC, 1B31EPA and 1B31LOC solvent based acrylic conformal coatings are available on SCH’s website.

Click for further information on the solvent based acrylic conformal coatings.

For the water based coatings there are 1H20 AR1/S, 1H20 AR1/D, 1H20 AR3/S  and 1H20 AR3/D.

The technical datasheets for 1H20 AR1/S, 1H20 AR1/D, 1H20 AR3/S  and 1H20 AR3/D water based acrylic conformal coatings are available on SCH’s website.

Click for further information on the water based acrylic conformal coatings.

Conformal Coating Service List of Materials published

The subcontract conformal coating service at SCH uses many materials including conformal coatings, masking mateirals and cleaning fluids. For convenience, these materials are listed below:

Manufacturer	Conformal Coating Material Code	Manufacturer	Conformal Coating Material Code
Acota	Certonal FC-722 Conformal Coating	Humiseal	1B31LOC Conformal Coating
Acota	Certonal FC-732 Conformal Coating	Humiseal	1B31EPA Conformal Coating
Acota	Certonal FC-746 Conformal Coating	Humiseal	1B73 Conformal Coating
Dow Corning	1953 Conformal coating	Humiseal	1B73EPA Conformal Coating
Dow Corning	2577 Conformal coating	Humiseal	1B18 Conformal Coating
Electrolube	HPA Conformal Coating	Humiseal	1R32 Conformal Coating
Electrolube	DCA SCC3 Conformal Coating	Humiseal	1R32A Conformal Coating
Electrolube	UAT Conformal Coating Thinners	Humiseal	1R32A-2 Conformal Coating
Electrolube	DCT SCC3 Coating Thinners	Humiseal	1H20 AR1 Conformal Coating
Electrofuge	200 Conformal Coating	Humiseal	1H20 AR3 Conformal Coating
Electrofuge	KF1280 Conformal Coating	Humiseal	1H20 UR5 Conformal Coating
Peters	TWIN-CURE DSL 1600 E-FLZ	Humiseal	1A33 Conformal Coating
Peters	ELPEGUARD® SL 1307 FLZ	Humiseal	1A33LOC Conformal Coating
Dymax	9481 Conformal Coating	Humiseal	1B31 Conformal Coating
Dymax	984-LVUF Conformal Coating	Humiseal	1C49 Conformal Coating
		Humiseal	1C49LV Conformal Coating
		Humiseal	1C51 Conformal Coating
		Humiseal	1C53 Conformal Coating
		Humiseal	1C55 Conformal Coating
		Humiseal	UV40 Conformal Coating
		Humiseal	UV40 Gel conformal Coating

Click here for further infomation including TDS and MSDS for the above conformal coatings used in SCH conformal coating service.

Humiseal 1R32A-2 Solvent Based Acrylic Conformal Coating from SCH

Humiseal 1R32A2 solvent based conformal coating is a commercial grade single component acrylic conformal coating, with adhesion modifiers to aid adhesion and meeting the mil spec and UL qualifications.

Humiseal have a range of acrylic conformal coating materials that are commercial grade, UL and mil spec qualified for all areas of conformal coating application.

The acrylic conformal coatings included in Humsiseal’s range include solvent and water based conformal coatings. 

For the solvent based coatings there are 1R32, 1R32A2, 1B12, 1B31, 1B66, 1B73 and 1B18 plus variations on solvent content such as 1B73EPA, 1B73LOC, 1B31EPA, 1B31LOC .

The technical datasheets for 1R32, 1R32A2, 1B12, 1B31, 1B66, 1B73, 1B18, 1B73EPA, 1B73LOC, 1B31EPA and 1B31LOC solvent based acrylic conformal coatings are available on SCH’s website.

Click for further information on the solvent based acrylic conformal coatings.

For the water based coatings there are 1H20 AR1/S, 1H20 AR1/D, 1H20 AR3/S  and 1H20 AR3/D.

The technical datasheets for 1H20 AR1/S, 1H20 AR1/D, 1H20 AR3/S  and 1H20 AR3/D water based acrylic conformal coatings are available on SCH’s website.

Click for further information on the water based acrylic conformal coatings.

The Non humiseal Conformal Coating Materials List has been extended

What Conformal Coating Materials are available in the Conformal Coating Service?

The subcontract conformal coating service at SCH uses many conformal coating materials from many suppliers including Humiseal, Electrolube, , Peters, Bectron, Dow Corning, Electrofuge and Acota. For convenience, these materials are listed below:

Acota Certonal FC-722 Conformal Coating

Acota Certonal FC-732 Conformal Coating

Acota Certonal FC-746 Conformal Coating

Dow Corning 1953 Conformal coating

Dow Corning 2577 Conformal coating

Electrolube HPA Conformal Coating

Electrolube DCA SCC3 Conformal Coating

Electrolube UAT Conformal Coating Thinners

Electrolube DCT SCC3 Coating Thinners

Electrofuge 200 Conformal Coating

Electrofuge KF1280 Conformal Coating

Peters TWIN-CURE DSL 1600 E-FLZ

Peters ELPEGUARD® SL 1307 FLZ

Dymax 9481 Conformal Coating

Dymax 984-LVUF Conformal Coating

Click here for the TDS and MSDS for the non Humiseal conformal coatings.