Ampreg 22Epoxy Laminating System

Optimised for open-mould laminating of large structures

Improvedhealth and safety

Lloyds and Germanischer Lloyds approved

Ampreg 22 is one of a new generation of epoxy laminating systemsfrom SP Systems which has been developed from the extremelysuccessful and widely used Ampreg 20. It is intended for both wet lay-up and vacuum bagging processes and uses the most up-to-dateepoxy chemistry available and is ideal for the manufacture of large, highperformance composite structures.

The Ampreg 22 system consists of a resin and a choice of fourhardeners to provide a complete range of working properties. With itsExtra-Slow hardener Ampreg 22 can provide laminate working times ofover 9 hours at 20°C whilst having Iow exothermic reactions even whenused in thick sections. The Fast hardener has such rapid through-curethat it can be used to produce small mouldings that are demouldable injust a few hours at 25-30°C.

Ampreg 22 resin is coloured bright yellow, with the hardeners having arange of different colours. This makes component identification easier,and facilitates thorough mixing of resin and hardener. For example, theExtra Slow hardener is coloured blue leading to a clearly identifiablegreen colour when thoroughly mixed with the resin.

Ampreg 22 resin has one of the lowest diluent contents of any epoxyresin system available today. Together with the use of some uniquechemistry in the hardeners, the overall system shows marked improve-ments in handling safety over other products. This aspect is particularlyimportant for those using the product in open-mould, hand lay-upapplications, where exposure to skin contact and vapours can bedifficult to avoid completely.

A22-7-0702-1

Notes: Ampreg 22 with most hardener variants holds GL and Lloyds approvals. Check latest status with SP Systems Technical Services.For an explanation of test methods used see 'SP Systems' Formulated Products Technical Characteristics'.All figures quoted are indicative of the properties of the product concerned. Some batch to batch variation may occur.tAil times are measured from when resin and hardener are first mixed together"Ambient temperature cure alone is not recommended with this hardener. A22-7-0702-3

Ampreg 22 PropertiesComponentProperties CuredSystem Properties

RoomTemperatureCure PostCuredResin Hardener (28days@21°C) (24hours@21°C+16hours@50°C)

Fast Std. Slow E.S. Fast Std. Slow E.S." Fast Std. Slow E.S.

Mix Ratio(byweight) 100 28 28 28 28 TgDMTA(PeakTan8WC) 71.5 70.9 71.1 60.8 91.6 78.8 83.6 82.2

TgUlt- DMTA(°G) 102.7 106.4 108.7 110.3 102.7 106.4 108.7 110.3MixRatio(byvolume) 100 32 33 33 34

H-DSC(J/g) 50 44 65 59 13 0 15 27

Viscosity@15°C(cP) 9270 420 67 43 34 Tg1- DMTA(°G) 61.5 58.3 63.2 50.4 79.7 66.4 73.6 72.7

Viscosity@20°C(cP) 3915 270 40 36 22 Est.HOT(°G) 57 56 56 46 77 64 69 67

MoistureAbsorption(%) 2.31 2.25 1.41 1.46 1.92 0.62 1.22Viscosity@25°C(cP) 2396 164 24 28 14

CuredDensity(g/cm') 1.16 1.13 1.14 1.14 1.16 1.14 1.14 1.14

Viscosity@30°C(cP) 1312 105 15 21 9 LinearShrinkage(%) 1.7 1.4 1.6 1.7 1.7 1.5 1.5 1.6

ShelfLife(months) 24 24 24 24 24 BarcolHardness 21 22 18 27 25 23 18 20

CastTensileStrength(MPa) 70.3 50.7 54.6 87.8 69.1 75.0 73.3Colour(Gardner) yellow 6 red green blue

CastTensileMod.(GPa) 3.78 3.65 3.89 3.64 3.58 3.51 3.36

MixedColour(Gardner) yellow pink green green CastStrainto Failure(%) 3.0 2.3 3.4 4.50 2.54 4.00 4.50

ComponentDens.(g/cm') 1.147 0.958 1.025 0.947 0.940 Lam.Comp.Strength(MPa) 503 410 429 515 437 462 441 516

LaminateTV.M.Strain('In) 2.2 2.0 1.9 2.15 2.00 2.50MixedDensity(g/cm') 1.108 1.101 1.099 1.097

LaminateILSS(Mpa) 52 52 50 45 48.0 53.3 54.0 46.0

HazardDefinition Xi,N C C C CILSSWetRetention(%) 79 90 92 87 82 98

Working Properties vs. TemperatureResin/Fast Hardener Resin/Standard Hardener Resin/Slow Hardener Resin/Extra Slow Hardener

15°C 20°C 25°C 30°C 15°C 20°C 25°C 30°C WC 20°C 25°C 30°C 15°C 20°C 25°C 30°C

InitialMixedViscosity(cP) 4132 1995 1265 881 2848 1529 805 431 1610 950 579 361 1402 722 461 294

tGelTime-150g Mixinwater(hrs:mins) 0:31 0:26 0:22 0:18 2:18 1:31 1:00 0:40 9:10 5:44 3:35 2:12 9:10 4:50

tPot Life- 500gMixinair (hrs:mins) 0:25 - 0:15 0:26 0:20 2:12 1:10 5:35 2:00

tEarliestTimeToApplyVacuum(hrs:mins) 1:30 1:10 1:00 0:50 2:00 1:50 1:30 1:20 5:30 4:40 4:00 3:20 8:40 7:00 5:50 4:45

tLatestTimeToApplyVacuum(hrs:mins) 3:10 2:15 1:40 1:10 3:20 2:45 2:20 2:00 7:45 6:40 5:30 4:20 11:30 9:10 7:20 5:50

tEarliestTimeToTurnOff Vacuum(hrs:mins) 5:00 3:30 2:30 1:40 5:00 4:00 3:15 2:40 18:30 15:30 12:30 9:30 48:00 30:00 18:00 11:20

tDemouldTime(hrs:mins) 5:00 3:30 2:30 1:40 8:20 5:20 3:15 2:40 36:00 30:00 25:00 19:00 100:00 62:00 37:00 22:00

Ampreg 22 PropertiesEarliest Time to Apply Vacuumt

100

r!~ 10::c

115 20 25 30

Temperature (OC)

Earliest Time 10Turnon Vacuumt1000

100

r!::ICl::c

10

115 20 25

Temperature (OC)30

Strain to failure ot Castings

~ 3ci!u; 2

0 Fast Std. SlowFast Std. Slow

28days@ 21°C 24hrs@21°C+16hrs@SO°C

40

40

ExtraSlow

100latest Time to Apply Vacuumj

'"g 10::c

115 20 25 30

Temperature (OC)

Theoretical Demould Time for Thin Laminatest100

ExtraSlow

'"g 10::c

115 20 25

Temperature (OC)30

Tensile Properties of Castings

600 Compressive Strength 01RE300Glass laminate

~500~Eo400cI!!U; 300CD>

c;;::: 200~E

8100

0Fast Std. Slow Extra

SlowFast Std. Slow Extra

Slow

28days@21°C 24hrs@21°C+16hrs@ SO°C

In!erlaminar Shear Strength of RE300 Glass laminate120 - I r 100

40

100 -

80 -'"....1!. 60 -enen::::!40 -

20 -

0-

40

100

90

'" 80....1!. 70;; 60...2!50

U; 40CD

'iii 30c~ 20

10

Fast Std. Slow

28days@2toC 24hrs@2PC+16hrs@SO°C

l1liTensile Strength 11Tensile Modulus

Notes: For an explanation of test methods used see 'SP Systems' Formulated Products Technical Characteristics'.

All figures quoted are indicative of the properties of the product concerned. Some batch to batch variation may occur.tAil times are measured from when resin and hardener are first mixed together

Fast Std. Slow ExtraSlow

28days@21°C

Dry ILSS

80cCl

60 ia;a:

40 ;;f!.

20

Fast Std. Slow ExtraSlow

24hrs@21°C+16hrs@ SO°C

III % Wet Retention

Glass Transition Temperature

Std. Slow

28days@2toC

11 Peak Tana

Slow ExtraSlow

Std.ExtraSlow

Fast

24 hrs@ 21°C+16hrs@SO°C

III Ultimate Peak Tana

A22-7-0702-4

Ov SlowSlow

-" '"-'"-

Standard

Fast

I ox.Slow

I =---Slow

Fast -

-xrStandard

Fast_.---

4.5 1204

1003.5-;;-....

E 803 !:.

25CD

... ca 60co2 ::E :;;... c:o.

1.5:;; E 40c

120

05

0 0Fast Std. Slow Extra Fast

Slow