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Lackwerke Peters GmbH + Co KG
Hooghe Weg 13, D-47906 Kempen
Internet: www.peters.de
E-Mail: [email protected]
Telefon (0 21 52) 20 09-0
Telefax (0 21 52) 20 09-70
Ein Unternehmen der PETERS-Gruppe
PTR
PRELIMINARY
TECHNICAL
REPORT
Conformal/permanent coating
ELPEGUARD SL 1400 ECO-FLZ
Base: polyurethane resins (PUR)
• colourless, fluorescent
• humidity curing conformal/permanent coating for
assembled pcbs/flat packs
com pl i a nt:
RoH
WEE S
ELV E
lead
- f re
e
• free of aromatic solvents
• free of heavy metals such as lead and chromium
compounds, fulfils the requirements of the “lead-free
regulation” (EU Vehicle End-Of-Life Directive
2000/53/EG)
• excellent protection against corrosion in case of high
temperatures and humidities
Indices: SL =
ECO =
FLZ =
conformal/permanent coating
ecological
fluorescent
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5
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LP 042809 E-2 / 0109100e.002
Contents
1.
2.
3.
4.
5.
6.
6.1
6.2
6.3
7.
7.1
General information............................. 2
Application........................................... 2
Special notes....................................... 2
Safety recommendations .................... 3
Characteristics .................................... 3
Properties ............................................ 3
General properties .............................. 3
Physical and mechanical properties ... 3
Electrical properties............................. 4
Processing........................................... 4
Adjustment of viscosity........................ 4
7.2
7.3
8.
9.
10.
11.
Auxiliary products................................ 4
Coating................................................ 5
Drying/Curing ...................................... 5
Standard packaging ............................ 5
Storage................................................ 5
Further literature/ Technical
publications ......................................... 6
12. Further products for the production of
pcbs..................................................... 6
13. Further products for the electronics/
electrical engineering industries.......... 6
Please read this preliminary technical report, the material safety data sheet according to EEC
91/155 as well as the application information sheet AI 1/1 “Processing instructions for the conventional physically drying/oxidative curing conformal/permanent coatings of the series SL 1300 to
SL 1309 N” (see also Item 7) carefully before using the product.
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Preliminary Technical Report ELPEGUARD SL 1400 ECO-FLZ
1.
General information
The conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ, colourless, fluorescent is a
humidity curing 1-pack conformal/permanent coating based on chemically reactive polyurethane
resins (PUR).
2.
Application
The conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ is used as a protective and
insulating lacquer; it
• protects assembled pcbs even under increased climatic stress against moisture, especially
against the effects of condensate,
• insulates electrical equipment, connections, switch panels, terminal boards, etc.
• can be soldered-through for repair purposes at soldering iron temperature and subsequently reapplied.
The conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ is used to protect assembled
pcbs that have to fulfil high requirements regarding quality and service life. Its resistance corresponds to that of a 2-pack conformal/permanent coating so that it offers highest climatic protection
at high temperatures and high humidities (85 °C/85 % r. h., see also Item 6.2 “Physical and mechanical properties“) and also regarding its electrical properties is suitable for highest requirements
and thus also for the coating of assembled pcbs or flat packs for:
•
•
•
•
•
high-performance electronics
•
•
•
•
•
the military sector
3.
the automotive industry
household appliances (hobby tools, washing machines and others)
electronic/electrical measuring and control units
electrical appliances equipped with electronic controls (industrial scales, medical appliances, industrial robots, and many more)
shipbuilding and off-shore technology
aerospace technology
explosion-protected equipment
appliances for telecommunications.
Special notes
The conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ is an ecologically modern
product (ECO = ecological): It has a high solids content, is free of aromatic solvents and heavy
metals and thus fulfils the requirements of the “lead-free regulation” (EU Vehicle End-Of-Life Directive 2000/53/EG).
The conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ can be used at temperatures
of -40 up to +130 °C [-40 – 266 °F] while at the lower and at the upper ends of this range the behaviour as well as the performance of the material can be negatively affected in case of some applications. Here additional pre-trials and tests are required.
To complement the process parameters indicated in this preliminary technical report the Application Information sheet AI 1/1 “Processing instructions for the conventional physically drying/oxidative curing conformal/permanent coatings of the series SL 1300 to SL 1309 N“ gives further and more detailed information and notes that need to be observed to achieve an optimum
processing result. In our report manual the Application Information sheet AI 1/1 is filed under
Group 1. On our report manual CD as well as on our web-site application information sheets can
be accessed in the “Service“ section.
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Preliminary Technical Report ELPEGUARD SL 1400 ECO-FLZ
4.
Safety recommendations
! Please read our material safety data sheet according to EEC 91/155 where you will find detailed
specifications of safety precautions, environmental protection, waste disposal, storage, handling, transport as well as other characteristics.
! When using chemicals, the common precautions should be carefully noted.
! Please also pay attention to national guidelines or directives concerning the handling of flammable liquids as for example the German TRbF (technical regulations for flammable liquids) or
European directives.
5.
Characteristics
Colour/appearance
colourless, fluorescent
Solids content
EN ISO 3251 / ISO 3251
1 h, 125 °C [257 °F], 1 g weighed quantity
59 ± 2 % by weight
Viscosity at 20 °C [68 °F]
flow time acc. to EN ISO 2431 / ISO 2431
5 mm ISO flow cup
75 ± 7 s
Viscosity at 20 °C [68 °F]
flow time acc. to DIN 53 211*
4 mm DIN flow cup
55 ± 5 s
Density at 20 °C [68 °F]
EN ISO 2811-1 / ISO 2811-1
1.05 ± 0.05 g/cm³
* The DIN 53211 has been replaced by the international norm EN ISO 2431. However, on account of
the widespread usage of the 4 mm DIN flow cup we continue indicating the viscosity acc. to
DIN 53211.
6.
Properties
The conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ is distinguished by the following properties:
6.1 General properties
• free of aromatic solvents (such as benzene, toluene, xylene and C9 aromates)
• free of heavy metals such as chromium, lead, etc.
• high solids content
• fulfils the requirements of the “lead-free regulation” (EU Vehicle End-Of-Life Directive
•
•
•
•
•
•
2000/53/EG)
after application a very good flow results and after curing an even, closely pored film is obtained
safe coverage of component leads, for example, so that even in critical areas a high protection
against corrosion is ensured
on account of its fluorescent adjustment (Index FLZ) the coating can be easily controlled under
UV light (black light with a UV-A impulse at 350-375 nm)
exhibits the excellent resistances of a 2-pack lacquer system
best climatic protection at high temperatures and humidities, therefore suitable for highest requirements
high surface hardness of the dried lacquer film while exhibiting a tenacious elasticity; thus the
risk of mechanical damage during further processing is considerably reduced
can be soldered-through/-out at soldering iron temperature for repair purposes.
•
6.2 Physical and mechanical properties
Property
Cold-Check Test
(Thermal shock test)
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Test method
100 cycles, -40 °C up to +110 °C
[-40 – 230 °F], holding time 15 min
each, temperature change within
10 s
Result
passed
(no cracks, no peeling)
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Preliminary Technical Report ELPEGUARD SL 1400 ECO-FLZ
6.3 Electrical properties
Property
Test method
Result
Dielectric strength
VDE 0303, part 21
IPC-TM-650, 2.5.6.1
Volume resistivity
VDE 0303, part 30
DIN IEC 93
5 x 1015 Ohm x cm
Surface resistance
VDE 0303, part 30
DIN IEC 93
2 x 1014 Ohm
Electro corrosion
21 d, 40 °C [104 °F], 95 % r. h.,
100 V DC
Moisture and insulation resistance IPC-CC-830, 3.7.1
Comparative tracking index
(tracking resistance)
DIN IEC 60 112, in connection
with VDE 0110, part 3
70 kV/mm
none
1 x 1010 Ohm
class H and T
CTI > 600
85/85 test; ramp like storage at
high atmospheric humidity and
Moisture and insulation resistance high temperature, among others
3 days at 85 °C [185 °F] and
85 % r. h.
> 1 x 109 Ohm
Condensation resistance
based on DIN 50 017
1 x 1010 Ohm
Thermal class
based on DIN IEC 60 085
7.
B = 130 °C [266 °F]
Processing
! Read our Application Information sheet AI 1/1 “Processing instructions for the conventional physically drying/oxidative curing conformal/permanent coatings of the series
ELPEGUARD SL 1300 to ELPEGUARD SL 1309 N” where you will find detailed information on
processing. In our report manual this Application Information sheet is filed under group 1. On
our report manual CD as well on our web-site application information sheets can be accessed in
the “Service“ section.
The conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ can be applied by means of
automatic, selective coating units as well as by means of brushing or spraying. On account of the
humidity sensitivity of the conformal/permanent coating application by means of dip coating can
only be performed under dry inert gas.
On account of the humidity sensitivity work tools made of stainless steel and, if necessary, teflon
coated hoses are particularly recommended when processing the conformal/permanent coating
ELPEGUARD SL 1400 ECO-FLZ.
The conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ cures under the influence of moisture. Take measures, such as using dry inert gas, to
protect the lacquer against moisture during processing.
You must clean the threads of opened containers with the cleaning agent
R 5804 or the thinner V 1400 ECO and then re-close the containers tightly.
Partially filled containers must be filled with dry inert gas.
7.1 Adjustment of viscosity
! Adjust the processing viscosity of the conformal/permanent coating ELPEGUARD
SL 1400 ECO-FLZ by means of the thinner V 1400 ECO (see also Item 3.1 of the Application
Information sheet AI 1/1).
7.2 Auxiliary products
! Clean the coating equipment with the cleaning agent R 5804. Check the resistance of the material, particularly the seals. We recommend the use of seals made of Teflon®- or Viton®.
We recommend the use of the cleaning agent R 5817 to clean work place and tools and the use of
the cleaning agent R 5804 or the thinner V 1400 ECO to clean the threads of opened containers.
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Preliminary Technical Report ELPEGUARD SL 1400 ECO-FLZ
Do not use the cleaning agents to clean hands. Solvents extract the natural
grease from the skin.
Special technical reports on these products are available upon request. In our report manual these
technical reports are filed under group 5. On our report manual CD technical data sheets can be
accessed in the “Products“ section.
Removal of the conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ by means of
cleaning agents/ strippers for repair purposes after final curing is virtually impossible. Since aggressive cleaning agents/strippers may also dissolve the components of flat packs these products
should only be used after suitable pre-trials.
7.3 Coating
! Ensure that the surface to be coated is clean, grease-free and dry.
! When processing please pay special attention to the notes under Item 4 “precleaning“ and Item
5 “coating“ of the Application Information sheet AI 1/1.
When applying the lacquer by means of compressed-air spraying the safety
precautions of the German Accident Prevention Regulation "Processing of
Coating Materials" (VGB 23 in future BGV D 25), especially section IV Operation (§§ 17-22), and of the German Explosion Protection Regulations (BGR
104) or of corresponding national regulations must be observed.
When processing the lacquer by means of spraying it is mandatory to take
protection measures to avoid a formation of solvent vapour mixtures that
might explode.
Filter mats impregnated with lacquer and solvent residues in spraying cabins
may self-ignite. Use water-irrigated spraying cabins to avoid the risk of the
filter mats self-igniting. Moreover, observe the operating and maintenance
instructions of the spraying cabin and filter mat manufacturers.
8.
Drying/Curing
After application the conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ initially dries
physically (see also Item 7.1 “physical drying” of the AI 1/1) and then finally cures under reaction
with atmospheric moisture.
Guidelines for drying a wet film thickness of 75 µm at room temperature:
Tack-dry (dust dry):
40 min
Dry (tack-free):
90 min
Complete takes approx. 48 to 96 hrs and depends, among others, on the component geometry, the
applied lacquer layer thickness and the atmospheric humidity.
On account of the atmospheric humidity required for curing oven drying of this lacquer system is
not recommended. It is mandatory to ensure that enough humidity is available for curing.
! Determine the optimum parameters for oven curing by means of pre-trials.
9.
Standard packaging
The conformal/permanent coating ELPEGUARD SL 1400 ECO-FLZ is packed for delivery as follows:
Can of 25 kg = 1 selling unit.
The thinner V 1400 ECO is available in cans of 23.5 kg.
Partial lots of the selling unit may be ordered, but will entail surcharges to cover repackaging costs.
10. Storage
In a cool, dry place, sealed original containers can be stored for at least 6 months. For warehousing reasons, isolated cases may occur where the shelf life upon shipment is less than the shelf life
indicated in this technical report. However, it is ensured that our products have at least two-thirds
of their shelf life remaining when they leave our company.
In accordance with EN ISO 9001, labels on containers show expiry dates.
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Preliminary Technical Report ELPEGUARD SL 1400 ECO-FLZ
Storage temperatures below +5 °C [41 F°] and/or in excess of +25 °C [77 °F]
affect the storage stability.
11. Further literature/ Technical publications
In addition to the recommendations given in this technical report, we can provide technical papers
and information sheets written and compiled by members of our staff which give highly detailed
information on the application and processing of our products. A list of the technical publications
available can be found in TI 15/101 E (technical papers) and TI 15/100 E (technical information
sheets).
In our report manual all technical information sheets (TI’s) are filed under group 15. Alternatively,
visit our web-site at http://www.peters.de or click on the "Service" section on our report manual
CD.
12. Further products for the production of pcbs
We offer a wide range of etch resists (photoimageable, UV curing, conventional curing), plating resists, solder resists (photoimageable, UV curing, conventional curing) as well as peelable solder resists, marking inks (photoimageable, UV curing, conventional curing), carbonconductive inks, via hole fillers (solely thermally curing), plugging pastes, heatsink pastes,
special strippers for solder resists and further auxiliary products for screen printing (e. g.
cleaning agents, thinners).
Special technical reports on these products are available on request.
13. Further products for the electronics/ electrical engineering industries
We boast a wide range of conformal/permanent coatings, thick film lacquers, silicone gel,
casting compounds, casting resins, electro pastes, insulating lacquers, impregnating varnishes, adhesive lacquers and auxiliary products for electronics.
Special technical reports are also available for these products and can be provided on request.
Any questions?
We would be pleased to offer you advice and assistance in solving your problems. Free samples
and technical literature are available upon request.
The above information as well as advice given by our Application Technology Department whether in verbal or written
form or during product evaluations is provided to the best of our knowledge, but must be regarded as non-binding recommendations, also with respect to possible third-party proprietary rights.
The products are exclusively intended for the applications indicated in the corresponding technical data sheets.
The advisory service does not exempt you from performing your own assessments, in particular of our material safety
data sheets and technical information sheets, and of our products as regards their suitability for the applications intended. The application, use and processing of our products and of the products manufactured by you based on the advice given by our Application Technology Department are beyond our control and thus entirely your responsibility. The
sale of our products is effected in accordance with our current terms of sale and delivery.
ATTENTION!
For new products, according to preliminary technical reports, adequate practical results are not always available which would permit a comprehensive assessment of such a product.
It is therefore imperative to exercise particular care in the testing of such products with regard to the
application intended!
Lackwerke Peters GmbH + Co KG
Hooghe Weg 13, 47906 Kempen
Internet: www.peters.de
E-Mail: [email protected]
Phone: 0049-21 52-20 09-0
Fax: 0049-21 52-20 09-70
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