KYNAR-HYLAR –NEWLAR-DURANAR all are PVDF
(Polyvinylidene fluoride)
What is
PVDF ?
Comparison Kynar Liquid PVDF Vs. Spraylat NEWLAR™
Powder PVDF
THICKNESS LIQUID 1.2 MILS -
POWDER 1.5 TO 2.5 MILS
PENCIL HARDNESS
Comparison
Kynar Liquid PVDF Vs. Spraylat NEWLAR™ Powder PVDF
THE MAIN NOTES ARE:
1) THICKNESS LIQUID 1.2 MILS -
POWDER 1.5 TO 2.5 MILS
2) PENCIL HARDNESS
3 ) KYNAR 70% (PVDF) VS NEWLAR 100% (PVDF)
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Physical
Testing
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Thermoplastic
|
NEWLAR™
|
|
Pencil
Hardness
|
HB
|
4 H
|
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Boiling
Water Immersion 20’
And Cross
Hatch after 5’
|
4B (Slight
Adhesion loss)
|
5B (100%)
|
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Dry
Adhesion
|
5B
|
5B
|
|
Nitric
Acid Vapors
|
Pass
|
Pass
|
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Continuing
Exposure (up to 72 hrs.)
|
Fail
|
Pass
|
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Impact-cracks
no loss of adhesion
|
Pass at 20
in/lbs.
|
Pass @ 40
in/lbs.
|
|
Falling
Sand Abrasion AAMA 40 liters/mil
|
36.56 Fail
|
45.4
|
|
Detergent
|
Pass
No-blisters
|
Pass
No-blisters
|
|
Hydrochloric
Acid (HCl) 37%
|
Pass 168
Hrs.
|
Pass 168
Hrs.
|
|
QUV –
Accelerated Weathering: Color
Change
|
∆ E
< 1.0
|
∆ E
< 0.6
|
|
UVB 313
Bulb for 3000 hours Gloss
Retention
|
77%
|
100%
|
|
Salt
Spray-B1000 (1000 hours)
|
Failed
(3N8)
|
Pass (8N8)
|
|
Salt
Spray-Alodine (chromated aluminum)
|
Failed at
900 Hrs.
|
Pass at
4000 hrs.
|
|
Application Characteristics
|
Thermoplastic
|
NEWLAR™
|
|
Resin technology:
|
70 % Thermoplastic Kynar / 30 %
Acrylic
|
100 % Thermosetting Fluorpolymer
|
|
Curing:
|
15 min @ 475° F
|
15 min. @ 400° F
|
|
Primer required to meet AAMA 2605 *
|
Yes
|
No
|
|
Typical Film
Thickness
|
1.2 mils
|
1.5 to 2.5 mils
|
|
|
|
|
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What is PVDF?
|
|
|
It is a resin used in architectural coatings that has
exceptional weathering characteristics. PVDF stands for
polyvinylidene fluoride. It is also known as "Kynar", or more
properly, ®Kynar 500. ®Kynar 500 is a registered
trade mark of Arkema Inc. North America, Inc. To quote Arkema: "Kynar®
polyvinylidene fluoride (PVDF) resin is one of the most stable and pure of
all commercial resins. It resists strong acids, solvents, and reducing
agents and is used in several industries, including electrical and
electronic manufacturing, chemical processing, pulp and paper, and
transportation." The word Kynar is being used in everyday conversation
the way the trade name "Kleenex" is used with tissues. However,
as long as Arkema continues to protect its right to the trade name
"Kynar 500," the generic way to describe it is
"polyvinylidene fluoride" or "PVDF." This is not
exactly the same thing as "Fluorocarbon resin." PVDF is one of
several Fluorocarbon resins. Another trade name used for PVDF is ®Hylar
5000. Hylar 5000 is a registered trade mark of Solvay Solexis. Newlar by Spraylac also has 100% PVDF
compared to 70% by others
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