Ampreg F230-1 Foaming Epoxy System - Gurit

Provisional datasheetAmpreg F230-1Foaming Epoxy Systemn Expanding Epoxy Systemn Density 150 – 300kg/m 3n Uses Ampreg 21 hardenersn Good mechanical and thermal propertiesn Excellent adhesion to substratesn Three components for flexibility and storage stabilityIntroductionThree part foaming epoxy system using Ampreg 21 hardeners. The final density of the cured product can becontrolled by the careful addition of the Foaming Agent, although the product is optimised to the 150 – 300kg/m³range.Ampreg F230-1-1-0911 1

Component PropertiesResinStandardHardenerSlow HardenerExtra SlowHardenerFoaming AgentMix Ratio (By Weight) 100 23 23 23 1.3Mix Ratio (By Volume) 100 26 27 27 1.3Viscosity at 25°C(cP) 10500 90 63 60 10Shelf Life (months) 12 12 12 12 12Colour White Pale amber Pale amber Pale amber ClearMixed Colour Off white Off white Off white Off whiteComponent Density (g/cc) 1.132 1.0 0.985 0.974 1.01Working PropertiesExpansionTime to full expansion will vary according to the hardener used and the temperature, slow hardeners take longer to reach full expansionas shown in the chart below.Note – the expansion of the foam is independent to the polymerisation, full cross-linking and hardening of the epoxy will take severalhours depending on the temperature and the volume of foam being cast. The foam and moulding cannot be handled until the resin hashardened sufficientlyCuringIt is recommended that the foam is allowed to cure at ambient temperature for 24hours before post curing. A full post cure of 16hrsat 50°C will give the properties outlined in the table in the Cured Properties Section.In order to shorten the curing time the post cure can be started after 1 hour when the foam is fully expanded. A minimum of 6 hoursat 50°C should be given before the foam is handled. The foam structure can be damaged if the mould is handled before the foam hashardened sufficiently.Ampreg F230-1-1-0911 3

ExothermAs with all epoxy systems the cross-linking reaction is exothermic, as this system foams, the self insulating effect means that hightemperatures can be expected if large volumes are being cast in confined mouldings.The actual temperature reached will depend on the speed of hardener used, the volume of material being cast, the ambienttemperature, the thermal conductivity of the mould and whether the mould is open or confined. Standard hardener is only reallysuitable for thin and low volume castings up to 30mm thickness due to the heat created.When curing thick sections it is clear that the mixture becomes quite hot in the middle, this has the effect of reducing slightly thedensity of the foam as the cells expand more. This can be up to 15% less depending on the mould geometry.The charts below show some typical temperatures experienced at the centre of castings in various situations.Figure 1: Exotherm at 21°C (Centre of open cast expanding 20mm to 80mm)Figure 2: Exotherm at 35°C (Centre of open cast expanding 20mm to 80mm)Figure 3: Bulk Exotherm (Centre of cast expanding 50mm to 200mm)Temperature (°C)Temperature (°C)Temperature (°C)When curing thick sections it is clear that the mixture becomes quite hot in the middle, this has the effect of reducing slightly thedensity of the foam as the cells expand slightly more. This can be up to 15% less depending on the mould geometry.4 Ampreg F230-1-1-0911

Cured System PropertiesThe table below shows mechanical and thermal properties of the system at a density of 230Kg/m 3 . Samples cured 24 hrs at 21°Cfollowed by 16hrs @ 50°C.Property Standard Hardener Slow Hardener Extra Slow HardenerTg DMTA (Peak Tan d) (°C) 82.9 77.8 81.8Tg2 Ult – DSC (°C) 84.8 77.7 79.5Tg2 – DSC (°C) 66 69 70Tg1 – DMA (°C) 64 66 69Compressive Strength (kPa) TBA 2660 2408Compressive Modulus (MPa) TBA 90 89.9Shear Strength (MPa) TBA 1.49 1.54Shear Modulus (MPa) TBA TBA 36.97Shear Elongation % TBA 16.7 15.4Tensile Strength (MPa) TBA 2.0 2.2Tensile Modulus (GPa) TBA TBA TBAFoamed laminate adhesion(Ampreg21 skins cast wet on wet)TBA 695J/m 2 peel strength TBAAmpreg F230-1-1-0911 5

Health and SafetyThe following points must be considered:1. Skin contact must be avoided by wearing protective gloves.SP-High Modulus recommends the use of disposable nitrilegloves for most applications. The use of barrier creams is notrecommended, but to preserve skin condition a moisturisingcream should be used after washing.2. Overalls or other protective clothing should be worn whenmixing, laminating or sanding. Contaminated work clothesshould be thoroughly cleaned before re-use.3. Eye protection should be worn if there is a risk of resin,hardener, solvent or dust entering the eyes. If this occursflush the eye with water for 15 minutes, holding the eyelidopen, and seek medical attention.6. The inhalation of sanding dust should be avoided and if itsettles on the skin then it should be washed off. After moreextensive sanding operations a shower/bath and hair wash isadvised.SP-High Modulus produces a separate full Material SafetyData Sheet for all hazardous products. Please ensure that youhave the correct MSDS to hand for the materials you are usingbefore commencing work. A more detailed guide for the safeuse of SP resin systems is also available from SP-HighModulus, and can be found at www.gurit.comApplicable Risk & Safety PhrasesRefer to Material Safety Data Sheet4. Ensure adequate ventilation in work areas. Respiratoryprotection should be worn if there is insufficient ventilation.Solvent vapours should not be inhaled as they can causedizziness, headaches, loss of consciousness and can havelong term health effects.5. If the skin becomes contaminated, then the area must beimmediately cleansed. The use of resin-removing cleansers isrecommended. To finish, wash with soap and warm water. Theuse of solvents on the skin to remove resins etc must beavoided.Washing should be part of routine practice:n before eating or drinkingn before smokingn before using the lavatoryn after finishing work6 Ampreg F230-1-1-0911

Transport & StorageThe resin and hardeners should be kept in securely closed containers during transport andstorage. Any accidental spillage should be soaked up with sand, sawdust, cotton waste or anyother absorbent material. The area should then be washed clean (see appropriate Safety DataSheet).Adequate long term storage conditions will result in a shelf life of one year for both the resinand hardeners. Storage should be in a cool, dry place out of direct sunlight. Temperaturesshould not exceed 20°C. High storage temperatures may cause premature expansion of theFoaming Agent. Containers should be firmly closed. Hardeners, in particular, will suffer seriousdegradation if left exposed to air.NoticeSP-High Modulus is the marine business of Gurit (the company). All advice, instruction orrecommendation is given in good faith but the Company only warrants that advice in writingis given with reasonable skill and care. No further duty or responsibility is accepted by theCompany. All advice is given subject to the terms and conditions of sale (the Conditions) whichare available on request from the Company or may be viewed at the Company’s Website:www.gurit.com/termsandconditions_en.html.The Company strongly recommends that Customers make test panels and conductappropriate testing of any goods or materials supplied by the Company to ensure that they aresuitable for the Customer’s planned application. Such testing should include testing underconditions as close as possible to those to which the final component may be subjected. TheCompany specifically excludes any warranty of fitness for purpose of the goods other than asset out in writing by the Company. The Company reserves the right to change specificationsand prices without notice and Customers should satisfy themselves that information relied onby the Customer is that which is currently published by the Company on its website. Anyqueries may be addressed to the Technical Services Department.Gurit are continuously reviewing and updating literature. Please ensure that you have thecurrent version, by contacting Gurit Marketing Communications or your sales contact andquoting the revision number in the bottom right-hand corner of this page.UKSt Cross Business ParkNewport, Isle of WightUnited Kingdom PO30 5WUT +44 (0) 1983 828 000F +44 (0) 1983 828 100E marine@gurit.comW www.gurit.comAustraliaUnit 1A / 81 Bassett Street,Mona Vale, 2103 NSW,AustraliaT +61 (0) 2 9979 7248F +61 (0) 2 9979 6378E sales-au@gurit.comW www.gurit.comNew Zealand32 Canaveral Drive, Albany,Private Box 302-191,North Harbour, 0751Auckland, New ZealandT +64 (0) 9 415 6262F +64 (0) 9 415 7262W www.gurit.comCanada175 rue Péladeau,Magog, (Québec)J1X 5G9, CanadaT +1 819 847 2182F +1 819 847 2572E info-na@gurit.comW www.gurit.com