419D Technical Data Sheet
Premium Acrylic Conformal Coating
ISO 9001:2008 Registered Quality System. Burlington, Ontario, CANADA
SAI Global File: 004008
419D-Aerosol
Description
Our 419D
Premium Acrylic Conformal Coating
is an IPC-CC-830B and UL 94-V0 certified, fast drying,
xylene and toluene free product that provides an excellent finish. This one part coating is easy to use and
repair. It does not require special or costly equipment or materials. It is ideal for high moisture
environments and applications requiring easy repair and rework.
The 419D coating protects electric circuits against moisture, dirt, dust, thermal shocks, and scratches that
could corrode, short circuit, or otherwise damage the electric components. It insulates against high-
voltage arcing, shorts, and static discharges. As well, this coating provides a high dielectric withstand
voltage that allows traces to be put closer together helping with miniaturization.
Applications & Usages
The 419D coating improves reliability, operational range, and lengthens the life of electrical and electronic
components and assemblies. Its primary applications are in the automobile, marine, aerospace, aviation,
communication, instrumentation, industrial control equipment, and consumer electronics industries.
Common acrylic conformal coatings uses are with electric generators, motors, transformers, relays, and
air bag controllers. The 419D coating can serve to protect high technology devices like cell phones,
computer tablets, avionics, and more.
Benefits
•
•
•
•
•
•
•
No hazardous air pollutants—free
of toluene or xylene
Certified
UL 94V-0
(File #
E203094)
Externally qualified
to
IPC-CC-830B-class
B, by Pacific Testing Laboratories
Excellent finish—smooth,
homogeneous, and durable crystal clear coat
Protects electronics from
moisture, corrosion, fungus, and static discharges
Easy to inspect—fluoresces
under black light (UV light)
Easy rework and repairs—can
solder through coat ● removable
with Cat. No. 435, 4352 thinner
or Cat. No. 8312 stripper
Usage Parameters
Properties
Tack Free
Recoat time
Drying Time @22 °C [72 °F]
Drying Time @65 °C [149 °F]
Shelf Life
Theoretical Coverage
per 340 g can
a)
Value
10 to 15 min
2 to 3 min
24 h
60 min
3y
≤10
500 cm
2
[≤1 620 in
2
]
Temperature Ranges
Properties
Constant Service
Temperature
Storage Temperature Limits
Value
-65 to 125 °C
[-85 to 257 °F]
-5 to 40 °C
[23 to 104 °F]
a) Idealized estimate based on a coat thickness
of 25
m
[1.0 mil] and 50% transfer efficiency.
Page
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Date: 25 October 2017 / Ver. 1.02
419D Technical Data Sheet
Premium Acrylic Conformal Coating
ISO 9001:2008 Registered Quality System. Burlington, Ontario, CANADA
SAI Global File: 004008
419D-Aerosol
Chemical Components
Name
Dimethyl ether
N-butyl acetate
Methyl Ethyl Ketone (MEK)
1-Methoxy-2-propanol acetate
Methyl methacrylate
N-butyl methacrylate
CAS Number
115-10-6
123-86-4
78-93-3
108-65-6
80-62-6
97-88-1
Properties of Cured 419D
Physical Properties
Color
Solderability
Weather Resistance
Fungus Resistance
Flexibility
Flammability
Electrical Properties
Breakdown Voltage @0.7 mil
Dielectric Strength @0.7 mil
Dielectric Withstand Voltage
Insulation Resistance (after 24 hours)
Thermal Properties
Glass Transition Temperature (T
g
)
CTE
c)
prior T
g
Method
Visual
—
—
IPC-TM-650 2.6.1.1
IPC-TM-650 2.4.5.1
UL registered
E203094
Method
ASTM D 149
"
per IPC-TM-650
IPC-TM-650 Test 2.6.3.4
Method
ASTM E 831
"
Value
Crystal Clear
Excellent
Excellent
Pass
Pass
94V-0
Value
700 V
1 000 V/mil
>1 500 V
1 × 10
12
Ω
0.7 kV
0.04 kV/mm
Value
44 °C [111 °F]
72 ppm/°C
Note:
See Appendix A for UL 94V-0 and IPC-CC-830B standards test results.
Properties of Uncured 419D
Physical Properties
Odor
Viscosity @25 °C [77 °F]
Density
Flash Point
Boiling Point
Solids Content (w/w)
Method
—
Brookfield SP1
ASTM D 1475
Closed Cup
Value
Ester-like, fruity
110 mm
2
/s
0.91 g/ml
9 °C [48 °F]
≥80
°C
[≥176
°F]
13.2%
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Date: 25 October 2017 / Ver. 1.02
419D Technical Data Sheet
Premium Acrylic Conformal Coating
ISO 9001:2008 Registered Quality System. Burlington, Ontario, CANADA
SAI Global File: 004008
419D-Aerosol
Compatibility
The 419D acrylic coating is compatible with most materials found on printed circuit assemblies; however,
in an uncured state it is not compatible with contaminants like water, oil, and greasy flux residues.
Therefore, it is extremely important to clean the printed circuit assembly thoroughly with a suitable
electronic cleaner before applying the coating.
The chosen electronic cleaner should remove moisture, wax, greases, oils, and all other contaminants that
are known to cause defects in this type of conformal coating (see recommended cleaners on page 3).
Health, Safety, and Environmental Awareness
Please see the 419D-Liquid
Safety Data Sheet
(SDS) for more details on transportation, storage,
handling and other security guidelines.
Environmental Impact:
The volatile organic content is 87% (794 g/L) by EPA and WHMIS standards.
This product meets the European Directive
2011/65/EU Annex II (ROHS);
recasting 2002/95/EC.
Health and Safety:
The liquid and spray is flammable and should be kept away from flames and other
ignition sources. As with most paint materials, avoid breathing in fumes or direct contact with the
material. Solvents therein can cause irritation and other symptoms like headaches, pain, as well as having
long term exposure effects.
HMIS® RATING
HEALTH:
FLAMMABILITY:
PHYSICAL HAZARD:
PERSONAL PROTECTION:
Approximate HMIS and NFPA Risk Ratings Legend:
0 (Low or none); 1 (Slight); 2 (Moderate); 3 (Serious); 4 (Severe)
Wear safety glasses and disposable gloves. Wash hands thoroughly after use. Use in the open air, in fume
hoods, or in well ventilated area. For short or long term (8 hours) at levels of exposures exceeding of
150 ppm butyl acetate or 200 ppm MEK, use NIOSH approved respirator with organic vapor cartridges
rated for this order of concentrations.
The cured coating presents no known hazard.
NFPA® 704 CODES
* 2
3
0
3
2
0
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Date: 25 October 2017 / Ver. 1.02
419D Technical Data Sheet
Premium Acrylic Conformal Coating
ISO 9001:2008 Registered Quality System. Burlington, Ontario, CANADA
SAI Global File: 004008
419D-Aerosol
Aerosol Application Instructions
Follow the procedure below for best results. Each coat results in a dry film thickness of roughly 0.5 mil
[13
m].
Prerequisites
•
Ensure surface to be coated is oil free, dust free and clean
Material & Equipment
•
Personal protection equipment (See 419D-Aerosol SDS)
To apply the required thickness by weight
1. Shake the can vigorously, and spray a test pattern.
This step ensures good flow quality and helps establish appropriate distance to avoid runs.
2. At a distance of 20 to 25 cm (8 to 10 inches), spray a thin and even coat onto a vertical surface.
For best results, start your movement off-surface, press the trigger, and only release off-surface at
the end of the stroke. Use a uniform movement of the spray gun parallel to the surface.
3. Before the next coat, rotate the board 90° to ensure good coverage.
4. Wait at least 5 minutes, and spray another coat. The delay avoids
trapping solvent between coats.
5. Apply other coats until desired thickness is achieved. (Go to Step 3)
6. Let dry for 15 minutes (flash off time) at room temperature.
A
TTENTION
!
•
•
•
Holding the can at a non-vertical angle during the spray application may result in uneven
application.
Coats that are applied too thick cause runs and hamper solvent evaporation.
Spraying onto horizontal surfaces is not recommended.
After use, clear the nozzle of the aerosol
1. Invert the aerosol can upside down.
2. Press button until clear propellant comes out. The propellant should become clear in a few seconds.
To cure the conformal coating
Full cure can be achieved in 60 minutes by using an infrared lamp or in convection oven at 65 °C
[149 °F]. At room temperature, the coat dries to the touch in 15 minutes and fully cured in 24 hours.
The procedure above is based on a minimum thickness of 25
m
(1 mil) conformal coating. After full cure,
measure the actual conformal coating thickness to ensure it meets the applications requirements.
Page
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Date: 25 October 2017 / Ver. 1.02
419D Technical Data Sheet
Premium Acrylic Conformal Coating
ISO 9001:2008 Registered Quality System. Burlington, Ontario, CANADA
SAI Global File: 004008
419D-Aerosol
Packaging and Supporting Products
Cat. No.
419D-340G
419D-1L
419D-4L
419D-20L
Packaging
Aerosol
Can
Can
Can
Net Volume
410 mL
13.9 fl oz
945 mL
31.9 fl oz
3.78 L
1 gal
18.9 L
5 gal
Net Weight
340 g
0.8 kg
3.4 kg
17 kg
12 oz
1.9 lb
7.6 lb
38 lb
Packaging
TBD
1.0 kg
4 kg
20 kg
Weight
TBD
2.5 lb
9 lb
9 lb
TBD = To be determined
Thinners & Conformal Coating Removers
•
Thinner 2:
Cat. No. 4352-945ML, 4352-4L (1 gal), 4352-20L, 4352-200L
•
Conformal Coating Stripper—Liquid:
Cat. No. 8312-580ML, 8312-3.78L
Technical Support
Contact us regarding any questions, suggestions for improvements, or problems with this product.
Application notes, instructions and FAQs are located at
www.mgchemicals.com.
Email:
support@mgchemicals.com
Phone: +(1) 800-340-0772
+(1) 905-331-1396
+(44) 1663 362888
Fax: +(1) 905-331-2862
Mailing address:
(Canada, Mexico & USA)
(International)
(UK & Europe)
or +(1) 800-340-0773
Head Office
9347–193rd Street
Surrey, British Columbia, Canada
V4N 4E7
Manufacturing & Support
1210 Corporate Drive
Burlington, Ontario, Canada
L7L 5R6
Warranty
M.G. Chemicals Ltd.
warrants this product for 12 months from the date of purchase by the end user.
M.G.
Chemicals Ltd.
makes no claims as to shelf life of this product for the warranty. The liability of
M.G.
Chemicals Ltd.
whether based on its warranty, contracts, or otherwise, shall in no case include incidental
or consequential damage.
Disclaimer
This information is believed to be accurate. It is intended for professional end users who have the skills
required to evaluate and use the data properly.
M.G. Chemicals Ltd.
does not guarantee the accuracy of
the data and assumes no liability in connection with damages incurred while using it.
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Date: 25 October 2017 / Ver. 1.02
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