VIPEL
F774-PT SERIES
POLYESTER RESIN
HIGH CROSS-LINKED TEREPHTHALIC
POLYESTER RESIN
Typical Cast Mechanical Properties
1
Test
Unit of Meas-
ure
Nominal Test Method
Tensile Strength psi/MPa 11,700/80 ASTM D638 / ISO 527-1
Tensile Modulus psi/GPa 560,000/4.0 ASTM D638 / ISO 527-1
Tensile Elongation % 2.7 ASTM D638 / ISO 527-1
Flexural Strength psi/MPa 17,300/114 ASTM D 790 / ISO 178
Flexural Modulus psi/GPa 560,000/ 4.0 ASTM D 790 / ISO 178
Heat Distortion Temp. F/ C@264 psi 295/146 ASTM D648 / ISO 75-A
Barcol Hardness 46 ASTM D2583 / EN 59
Typical Liquid Properties
2
VERSIONS
Viscosity
cps
Thix
Index
Gel
Time
Min
Gel to
Peak
Min
Peak
Exotherm
( F/ C)
%
HAP
Content
F774-PTA-30 700
1 2
2 30
3 11 428/220 45
F774-PTD-30 625
1 2
2 30
3 11 428/220 46
F774-PTL-35 500
4 2
5 35
6 – 398/204 44
F774-PTM-00 625
1 3.8
2 24
7 – 414/212 47
F774-PTW-30 700
1 2
2 30
3 11 428/220 45
F774-PTA-25 700
1 2
2 25
3 11 428/220 45
*Typical properties are not to be construed as specifications.
DESCRIPTION
Vipel F774 Series are high cross-linked
terephthalic polyester resins.
APPLICATION
Vipel F774 series resin were developed
to meet the demanding requirements
of underground petroleum storage
tanks that contain oxygenated fuels.
BENEFITS
UL Recognition
AOC’s Vipel F774 Series resins are rec-
ognized by UL for meeting the require-
ments of UL 1316 and UL 1746 Part II
and Part III.
Corrosion Resistance
Vipel F774 Series resins provide excel-
lent corrosion resistance when used in
contact with inorganic and organic ac-
ids. Solvent resistance is field-proven
for many fuels including gasoline, kero-
sene, heating oil and crude oils. Refer
to AOC’s “Corrosion Resistant Resin
Guide” for corrosion resistance infor-
mation or for questions regarding suita-
bility of a resin to any particular chemi-
cal environment contact AOC.
Versatile
Suitable for various fabricating meth-
ods such as hand lay-up, spray-up, fila-
ment winding, etc.
NA- Not applicable
1) 77 F/25 C Brookfield RVT viscosity spindle 2 at 20 rpm
2) 2/20 rpm Thix Index
3) 77 F/25 C Gel time with 1.0% MEKP-925H (100 gram mass)
4) 77 F/25 C Brookfield LV viscosity #3 @ 60rpm
5) 6/60 rpm Thix Index
6) 77 F/25 C Gel time with 1.0% Butanox M50
7) 77 F/25 C Gel time with .02% Cobalt 6%, 0.05% DMA 1.25% Butanox M50
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AOC is a registered trademark of AOC, LLC.
The information contained in this data sheet is based on laboratory data and field experience. We believe this information to be reliable, but do not guarantee its applicability to
the user s process or assume any liability for occurrences arising out of its use. The user, by accepting the products described herein, agrees to be responsible for thoroughly
testing each such product before committing to production. Our recommendations should not be taken as inducements to infringe any patent or violate any law, safety code or
insurance regulation. This data sheet and its contents are the confidential and proprietary information of AOC and it may not be modified altered deconstructed or presented in
any other manner without the explicit authorization of AOC and/or its legal counsel.
VIPEL
F774-PT SERIES POLYESTER RESIN
PERFORMANCE GUIDELINES
A. Keep full strength catalyst levels
between 1.0% – 2.0% of the total resin
weight.
B. Maintain shop temperatures be-
tween 65 F/18 C and 90 F/32 C
and humidity between 40% and 90%.
Consistent shop conditions contribute
to consistent gel times and will help
the fabricator make a high quality part.
C. Sanding and/or grinding is recom-
mended if a secondary bond is applied
to a laminate that was made with a
resin containing wax.
STORAGE STABILITY
This product is stable for three
months from the date of manufacture
when stored in the original containers,
away from direct sunlight or other UV
light sources and at or below 25 C
(77 F). Storage stability of two
months or less should be anticipated if
the storage temperature exceeds
30 C (86 F).
After extended storage, some drift may
occur in the product viscosity and gel
time.
SAFETY
See the appropriate Safety Data Sheet
for guidelines.
ISO 9001:2015 CERTIFIED
The Quality Management Systems at
every AOC manufacturing facility have
been certified as meeting ISO
9001:2015 standards. This certifica-
tion recognizes that each AOC facility
has an internationally accepted model
in place for managing and assuring
quality. We follow the practices set
forth in this model to add value to the
resins we make for our customers.
FOOTNOTES
(1.) These tests are based on Vipel F774-with 40%
styrene at 77 F/25 C and 50% relative humidity. All
tests performed on unreinforced cured resin castings.
Thixotropic components, if applicable, are excluded
from casting samples. Castings were prepared using
1.0% BPO and cured for 16 hours at 160 F/71 C., 1
hour at 199 F/93 C, 1 hour at 241 F/116 C, and 2
hours @ 280 F/138 C.
(2) The gel times shown are typical but may be affected
by catalyst, promoter, inhibitor concentration, resin,
mold, and shop temperature. Variations in gelling char-
acteristics can be expected between different lots of
catalysts and at extremely high humidities. Pigment
and/or filler can retard or accelerate gelation. It is rec-
ommended that the fabricator check the gelling charac-
teristics of a small quantity of resin under actual operat-
ing conditions prior to use.
Pub. F774-PT Series NA
Effective Date: October 2020
Copyright 2020