b'THERMOSETTING PHENOLIC COMPOSITE - TPCTECHNICAL DATAWhat is Thermosetting Phenolic Composite (TPC)Coating the EPS bead The TPC product is produced by coating ExpandedThe aged EPS beads and the Pre-Mix are fed into the Polystyrene (EPS), a closed cell lightweight cellularcoating machine along with a catalyst. The flow rates plastics material with a phenolic composite coating toare critical to ensure an even coating over the EPS produce a core material with superior fire ratings. Thebeads. The coated beads travel along a fluidized bed EPS material has been modified by the addition ofallowing them to dry. flame-retardant additives. Aging of the Coated Beads The finished product produces a core material with allAfter clearing the coating machine, the treated beads the known physical attributes of EPS with a vastlyare transferred to an aging silo. This allows for superior fire performance.stabilization and cooling of the coated beads Moulding of the TPC Blocks The Manufacturing Process Once conditioned by aging, the coated beads are Pre-Expansion of the EPStransferred to specially designed Moulding machines to The small expandable beads are subjected to steam,be formed through the introduction of steam into fused blocks. which causes the thermoplastic polystyrene to soften. Increasing vapour pressure caused by the blowingDrying of the TPC Blocks agent causes the beads to expand to up to 40 timesTo provide dimensionally stable dry blocks it is their original volume. It is this prefoam stage whichnecessary to pass them through a temperature-determines the final density of the expandedcontrolled oven. This process also ensures that any polystyrene block. residual blowing agent has been removed. Aging of the EPS beadFinished ProductAfter pre-expansion the pre-foam is transferred via toFor most customers the manufacturing process is not fluidized drying bed to large silos for aging. Thiscomplete until the EPS blocks have been cut into various shapes. This process is mainly carried out using process is designed to allow for the replacement ofa hot wire cutting machine that gives a fine finish to the expanding agent by air in the cells of the bead. Agingproduct and enables very fine cutting tolerances to be also allows for stabilization and cooling of the pre- achieved. foam.Quality ControlBlending the Pre-MixTo ensure compliance with customer requirements we The resin along with the addition of additionaloperate a fully accredited Integrated Managed System additives are thoroughly mixed under temperature(IMS) to ISO9001. Additionally, we a have a Safety control conditions as per strict SOP requirementsManagement System accredited to ISO 45001:2018.Table 1Physical Properties of TPC, according to AS 1366, Part 31992Physical PropertyUnitTest MethodNominal Density (kg/m3) 40N/aCompressive stress at 10% deformation (min) kPa165AS2498.3Cross-breaking strength (min) kPa320AS2498.4Rate of water vapour transmission (max) measuredg/m2s400AS2498.5parallel to rise at 23CDimensional stability of length, width, thickness (max) at%1.0AS2498.670C, dry condition 7 daysThermal resistance (min) at a mean temperature of 25CM2K/W1.70AS2464.5 or AS2464.6(50mm sample)Delta Insulation SystemsPage 2 of 4 P: +61 07 3271 2170 E: info@deltainsulationsystems.com W: www.deltainsulationsystems.com.au A: 49 Bernoulli Street, Darra Qld. 4076 ABN: 12 122 760 552'