Thioplast™ Polysulfides

1 Thioplast Polysulfides Resistive polymersforhigh-performance coatings& adhesivesSubtitle max. 2 lines Arial Regular 15ptDr. Christian ProbstThioplast Polysulfide PolymersWhat are liquid polysulfide polymers? Liquid polysulfide polymers are versatile pre-polymer resins with water to honey-like viscosity Polysulfide polymers are As SH-terminated grades (Thioplast Gfamily) As epoxy-terminated grades (Thioplast EPSfamily) Cured polysulfide polymers High chemical resistivity Excellent gas barrier properties / low permeability High weather resistance (Low-temperature) flexibility Crack-bridging ability2 Thioplast Polysulfide PolymersThioplast G product family3 Acetal groupsFlexibilization of the polymer backbone; Working temperature: - 55 C +120 C Disulfide linkagesExchange reactions; Stress relaxation; Chemical resistance against oils, fuels, bases, etc. Trifunctional branchingIncreasing the structural toughness and strength Mercaptan end groupsAllow for crosslinking / polymerization via oxidation, NCO- and epoxy-curing; Highly reactive No double / triple bondsHigh weathering-, ageing-, ozone-, UV- and O2stability AvailabilityThioplast G is available in different grades with viscosities ranging from 1 Pas 140 PasThioplast Polysulfides in coatings HowThioplast G helpsto protect4 Thioplast in specialty coatingsApplication example: protective coatings5 Thioplast Polysulfides are used in high-performance coatings in demanding environments Here: protective cable coating for steel girder bridges Key benefitsfrom Thioplast in this application: Durability increased and maintenance costs lowered by improved corrosion resistance, flexibility, weathering resistance (water, UV light) and crack-bridging-abilityHong Kong-Zhuhai-Macao Bridge.

2 Cables protected with Thioplast EPS Introducingthe all new Thioplast EPS35 7 Thioplast Polysulfide PolymersThioplast EPS product family8 New & betterThe recently commercialized, best performing EPS grade, Thioplast EPS35 is now available in China, Europe & USA! Epoxy end groupsNo mercaptan odor; Amine- or anhydride curable; Miscible with all standard epoxy resins Aromatic / aliphaticAromatic grade - EPS70 - for quick curing indoor applications; aliphatic grades - EPS25 & EPS35 - for outdoor applications Hybrid polymerEpoxy-terminated Thioplast EPS polymers are hybrids that ideally combine chemical and physical performance of Polysulfides with the strengths of epoxy resinsThioplast EPS35 provides flexibility, low-temperature impact resistance, shear strength and chemical resistance for epoxy-based coatings and adhesives - in one EPS35 Flexibility10 Thioplast EPS35 s aliphatic polymer structure enables chain flexibility in the cured epoxy network Shore hardness and elongation become adjustable to coatings and adhesives applications Epoxy coatings & adhesives become more flexiblePre-commercialization state: durable epoxy load bed Strength Test performed acc.

3 To DIN EN ISO 5270102030405060708001020304050607080901 0005101520253035 Max. elongation [%]ShoreD hardnessThioplast EPS35content[%]Neat epoxyEpoxy/EPS blend in picture contains 50 % Thioplast EPS35. Thioplast EPS35 Crack resistance11 Thioplast EPS35 s flexible polymer backbone makes brittle epoxies softer Crack resistance can efficiently be improved Epoxy coatings become tougherPre-commercialization state: durable epoxy load bed cupping [mm]Thioplast EPS35 contentin epoxycomponent[%]Erichsencupping test performed by 3rd partyinstitute INNOVENT e. V. acc. to DIN EN 13523-6 test norm Neat epoxyThioplast EPS35 Low-temperature impact resistance12 The flexible polymer structure of Thioplast EPS35 leads to a drastically improved impact resistivity of epoxy coatings Durability is improved and maintenance is lowered Epoxy coatings become better in low-temperature conditionsCharpy impactresistancetestsperformedacc. to EN ISO 179 1 test norm0,0E+005,0E-031,0E-021,5E-0201020304 0506070 Notchedimpactstrength[J/mm2]Thioplast EPS35 content in the epoxy component [%] 2 5 C -10 C - 2 0 CNeat epoxyPotential application in low-temp.

4 Flexible and chemically resistive EPS35 Anti-corrosion properties13 Thioplast EPS35 increases the adhesion to metal and concrete At the same time, flexibility and wettability are increased Anti -corrosion properties of epoxides are improved Epoxy coatings become more resistive to offshore conditions010203040010203040506070 CorrosionFactor[ ] Thioplast EPS35 content in epoxy component [%]Salt spray test performedby 3rd partyinstitute INNOVENT e. V. acc. to DIN EN ISO 9227:2006-10 Potential applicationin EPS35 Shear strength Even low amountsof Thioplast EPS35 improvetheshearstrengthsignificantlyand epoxy-basedcoatingsand adhesiveadherebetter Epoxy-based coatings become more reliable140246810121416 Untreated SteelSandblastedSteelAluminum24% Thioplast EPS 355,5813,975,76 Neat Epoxide1,8510,112,68 SHEAR STRENGTH [N/mm2]Tensile Shear Test performed acc. to DIN EN 2830 Test Norm Thioplast EPS is usedin structuraladhesivesfortheautomotiveindus try.

5 Thioplast EPS35 Chemical resistivity15 The sulfur in the polymer backbone increases the chemical resistivity of epoxides Epoxy-based coatings become more resilientPotential applicationin Acid (10%)EPSE poxyNitric Acid (20%)EPSE poxyNaOH (50%)EPSnoalterationsobservedEpoxynoalte rationsobservedNH3(32%)EPSnoalterationso bservedEpoxyThioplast EPS is usedin oiland watertank EPS35 Starting Formulation16 FormulationIFormulationIIFormulationIIIF ormulationIVSofter & higherelongationPicture of generic formulation. Thioplast EPS35 starting formulation visco.: 14-18 Pas. Contact me for more information17Dr. Christian ProbstE-mail: +49 3661 78