AO
epoxies
DURA TECHNOLOGIES
AO
epoxies
80LM-2 SYSTEM
ISO 9001:2000 Registered
Company
MARINE LAMINATING RESIN
The AO 80LM-2 system is an acrylated, clear laminating epoxy particularly suitable for wetting out and bonding wood.
The system yields an increased cross link density making it especially suitable for lightweight, high performance
composites using a variety of reinforcements. Three hardeners are available, 80LM-2B (rapid)
80LM-3B (standard) and 80LM-7B (slow)
USES
Lightweight composites up to 200 F
above and below the water line
Hand lay up, vacuum bagging and
RTM application
Systems where very light color is
required
Repair applications, laminating,
bonding, fairing or sealing
PERFORMANCE BENEFITS
Superior fatigue and toughness
properties
Good adhesion to fabrics, core
materials, wood and metal
Good moisture exclusion Excellent wet out and air release
CURING AO 80LM-2 SYSTEMS
AO 80LM-2 system mixes maintain good working properties until gelation takes place. Under some circumstances the
mixture may cure to a brittle B stage, but will temper to full cure over the next 48hours at room temperature.
Minimum cure temperature is 65 F/19 C for the Rapid and Slow hardener. The system reaches maximum ambient cure
after seven days at room temperature. Curing for three hours at 180 F/82 C will lead to a further improvement in the
cured system properties.
TYPICAL LIQUID SYSTEM PROPERTIES AT 25 C/77 F FOR AO 80LM-2 system
PropertyProperty 80LM-2B
Rapid (Revision 2)
80LM-3B Standard
(Revision2)
80LM-7B
Slow
80LM-7B
Slow
Mix Ratio (parts by weight)
(parts by volume)
Mix Ratio (parts by weight)
(parts by volume)
100 Resin/20Hardener
100 Resin/22Hardener
100 Resin/20Hardener
100 Resin/22Hardener
100Resin/33Hardener
100Resin/35Hardener
100Resin/33Hardener
100Resin/35Hardener
Viscosity (mixed) (ASTM D-2393)Viscosity (mixed) (ASTM D-2393) 700cps 400 cps 450cps450cps
Color (mixed)Color (mixed) Clear Clear ClearClear
Density (mixed), lbs/galDensity (mixed), lbs/gal 9.29 9.3 9.129.12
Our Products are intended for sale to industrial and commercial customers. We request that Customers inspect and test our products before use and satisfy themselves as to
contents and suitability. Nothing herein shall constitute a warranty, expressed or implied, including any warranty or merchantability or fitness, nor is protection from any law of
patent to be inferred. All patent rights are reserved. The exclusive remedy for all proven claims is replacement of our materials and in no event shall we be liable for special ,
incidental or consequential damages
Last updated February 2, 2010 ISO 9001:2000 Registered Company
1
Specific Gravity, (mixed)Specific Gravity, (mixed) 1.114 1.115 1.0931.093
Pot Life (ASTM D-2471), 72 F, 120 gramsPot Life (ASTM D-2471), 72 F, 120 grams14-16 minutes 19-23 minutes 38 minutes38 minutes
Tack FreeTack Free 3 hours @77 F 3.5-4 hours @77 F4-5 hours @77 F4-5 hours @77 F
Shelf-life, Separate Parts Shelf-life, Separate Parts 1 year 1 year 1 year1 year
AO
epoxies
DURA TECHNOLOGIESDURA TECHNOLOGIESDURA TECHNOLOGIESDURA TECHNOLOGIES
AO
epoxies
80LM-2 SYSTEM
MARINE LAMINATING RESIN
80LM-2 SYSTEM
MARINE LAMINATING RESIN
80LM-2 SYSTEM
MARINE LAMINATING RESIN
80LM-2 SYSTEM
MARINE LAMINATING RESIN
____________________________________________________________________________________________
CURED SYSTEM PROPERTIES AT 25 C/77F FOR AO 80LM-2 SYSTEM
Property 80LM-2B Rapid
(Revision 2)
80LM-3B
Standard
(Revision 2)
80LM-7B
Slow
Hardness, Shore D, ASTM D-2240: 1 Day Cure
14 Day Cure
82
88
82
89
80
86
Tensile Strength, ASTM D-648, psi @ 77 F 9,940 10.090 7,230
Tensile Elongation 5.4% 3.9% 6.4%
Glass Transition Temp (Tg) by DSC, 7 Day Cure156 F/69 C158 F/70 C153 F/67.2 C
Moisture Absorption, ASTM D-570, 24h, 77 F 0.18% 0.21% 0.74%
Moisture Absorption, 7 days @ 140 F 1.6% 1.7%
Compression Strength, ASTM D-695, psi @ 77 F 7,450 7,780 7,145
Flexural Strength, ASTM, D-790, psi @ 77 F 21,690 15,930 11,230
Our Products are intended for sale to industrial and commercial customers. We request that Customers inspect and test our products before use and satisfy themselves as to
contents and suitability. Nothing herein shall constitute a warranty, expressed or implied, including any warranty or merchantability or fitness, nor is protection from any law of
patent to be inferred. All patent rights are reserved. The exclusive remedy for all proven claims is replacement of our materials and in no event shall we be liable for special ,
incidental or consequential damages
Last updated February 2, 2010 ISO 9001:2000 Registered Company
2
Note: Must post-cure to obtain these physical properties.
PACKAGING WEIGHTS IN LBS
Material Quart Gallon Pail Drum
80LM-2A Resin 2.0 8.0 40.0 400.0
80LM-2B Hardener 0.4 1.6 8.0 80.0 in 2 pails
80LM-3B Hardener 0.4 1.6 8.0 80.0 in 2 pails
80LM-7B Hardener 0.7 2.6 13.2 132.0 in pony
Our Products are intended for sale to industrial and commercial customers. We request that Customers inspect and test our products before use and satisfy themselves as to
contents and suitability. Nothing herein shall constitute a warranty, expressed or implied, including any warranty or merchantability or fitness, nor is protection from any law of
patent to be inferred. All patent rights are reserved. The exclusive remedy for all proven claims is replacement of our materials and in no event shall we be liable for special ,
incidental or consequential damages
Last updated February 2, 2010 ISO 9001:2000 Registered Company
3