A real te­st, ‘Ger­man’ sty­le hard and mo­re set up by Wre­de Tech­no­lo­gies. The Ita­lian fil­ler went un­der the mi­cro­sco­pe. The re­sult: pre­mium qua­li­ty - hands do­wn.

Superyacht - - Technical - by Ro­ber­to Neglia

It is stan­dard prac­ti­ce for mar­ke­ting brands to pre­sent their pro­duc­ts. Less of­ten thou­gh, is it pos­si­ble, to check out the re­sul­ts of a te­st ma­de by an in­de­pen­dent exa­mi­ning bo­dy. And this is what pre­ci­se­ly oc­cur­red wi­th Wre­de Tech­no­lo­gies Stu­dio one of the mo­st in­ter­na­tio­nal­ly re­no­w­ned con­sul­tan­ts spe­cia­li­sed in the gi­ven field. Tests we­re car­ried to mea­su­re the de­gree of re­si­stan­ce so­me of Boe­ro Ya­cht Coa­tings pos­sess.but mo­re spe­ci­fi­cal­ly we’re tal­king about hi-per­for­man­ce pain­ts and fil­lers used on su­per and me­ga­ya­ch­ts. Two se­pa­ra­te fil­lers we­re te­sted: “Epo­light Win” and “Epoya­cht”. The ana­ly­sis ai­med to check out the pro­duc­ts‘ yield on two hy­po­the­ti­cal uni­ts whi­ch had been trea­ted wi­th com­pre­hen­si­ve cy­cles and then

ex­po­sed to di­ver­se tem­pe­ra­tu­res and to com­pa­re per­for­man­ce. The fir­st im­por­tant re­sult ob­ser­ved by the te­sting par­ty from the be­gin­ning whi­le the pro­to­ty­pes we­re being com­ple­ted was that Boe­ro fil­lers “we­re ea­sy to ap­ply and smoo­th” when com­pa­red to other pro­duc­ts on the mar­ket.but what’s mo­re to the point is that at the end of all the tests no de­fec­ts we­re found in the fi­ni­sh, no si­gn of de­la­mi­na­tion or cracks of any kind. In a nu­tshell the fol­lo­wing pro­duc­ts we­re exa­mi­ned clo­se­ly: Del­ta 3000 / Epo­light Win / Epo­mar / Del­ta UC HB / Epo­ply / Chal­len­ger Pro - Del­ta 3000 / Epoya­cht / Epo­mar / Del­ta UC HB / Epo­ply / Chal­len­ger Pro. Se­ve­ral mock-ups we­re spe­cial­ly pre­pa­red for the tests. The tho­rou­gh­ness of the tests was am­ply de­mon­stra­ted not on­ly by the ap­pli­ca­tion of va­ria­ble thic­k­nes­ses but al­so by the ma­xi­mum re­qui­red thic­k­ness whi­ch was re­la­ti­ve­ly hi­gh, and mo­re so by the geo­me­try of the sur­fa­ces them­sel­ves- the sha­pes of so­me - fea­tu­red cut­ting cur­ves. The sur­fa­ces to be trea­ted we­re san­ded be­fo­re the pri­mers we­re ap­plied ac­cor­ding to SA2.5 stan­dard.then they we­re du­ly clea­ned and de­grea­sed. The pri­mers we­re ap­plied at pre-set tem­pe­ra­tu­re and hu­mi­di­ty le­vels, at 20° C and about 40% hu­mi­di­ty.the pro­duct was sprayed on wi­th a cup sha­ped gun. Then ca­me the fil­lers ac­cor­ding to the specs sup­plied on the pro­duc­ts’ tech­ni­cal shee­ts. Four 5mm layers we­re ap­plied in suc­ces­sion to rea­ch the ma­xi­mum thic­k­ness re­qui­red. In ac­tual fact to be ho­ne­st this is on­ly part of the pre­li­mi­na­ries be­cau­se the real work con­si­sted in te­sting yield by si­mu­la­ting se­ve­ral wor­king con­di­tions a ya­cht may un­der­go. From the tou­ghe­st (cold) to the hot­te­st wi­th tem­pe­ra­tu­re ex­cur­sions ran­ging bet­ween -30°C to +80°C. Other trials we­re car­ried out as well by si­mu­la­ting day to night ti­me tem­pe­ra­tu­res, and then re­turn to day­ti­me hot­ter tem­pe­ra­tu­res re­pea­ted­ly. Sub­se­quent te­sting si­mu­la­ted crui­sing in ex­tre­me­ly cold wa­ters -30°C for th­ree con­se­cu­ti­ve days, al­ter­na­ted by brief de­fro­sting eve­ry 24 hours. Fi­nal­ly tem­pe­ra­tu­res we­re rai­sed wi­th in­fra­reds to 80°C. All things con­si­de­red this was a ve­ry se­ve­re set of tests per­for­med whi­ch ex­ceeds, by far the ef­fec­ti­ve use of a su­pe­rya­cht du­ring its who­le li­fe cy­cle. One of the mo­re stri­king re­sul­ts is that the tem­pe­ra­tu­res the sin­gle pro­to­ty­pes we­re ex­po­sed to did not va­ry ex­ces­si­ve­ly nei­ther bet­ween their front si­des and back ones. But mo­re so that at the end of the tests the­re we­re no de­fec­ts in the fi­ni­shes, no form of de­la­mi­na­tion or cracks of any kind wha­tsoe­ver. The te­st al­so re­vea­led that the sa­me re­sult was not rea­ched by other fil­lers (of other brands) whi­ch had in fact fai­led se­ve­ral ti­mes when tem­pe­ra­tu­res drop­ped be­low -15°C. Bo­th Boe­ro fil­lers Epo­light win and Epoya­cht in­stead we­re free of any crack fol­lo­wing th­ree se­pa­ra­te tem­pe­ra­tu­re tests and the “per­for­man­ce ob­ser­ved” – as writ­ten in the fi­nal re­port – “they’re in the pre­mium ran­ge when com­pa­red to the re­sul­ts ob­tai­ned by other fil­lers cur­ren­tly avai­la­ble on the mar­ket”

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