Handy lay up

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* Handy Lay-Up * Laminação manual * O processo de Hand Lay-up * Laminação manual é um sistema simples de moldagem de peças em compostos com baixo investimento inicial. * Foram desenvolvidos nos primórdios da industria de plásticos reforçados com fibras de vidro ou simplesmente “fiberglass”. * Matérias Primas mais utilizadas * São fabricados em várias camadas de reforço de fibra de vidro, intercalando-se mantas e tecidos impregnados com resinas Poliester, Ester Vinilica ou Epoxi resistentes a corrosão. Laminados manualmente sobre moldes ou mandris espelhados os projetos são desenhados sob medida * Podem ser produzidos virtualmente para qualquer tamanho, não importando quão complexo seja e nas mais diferentes aplicações. * As peças obtidas por este processo apresenta uma face lisa e excelente acabamento superficial. * O lado interno tem acabamento rugoso, embora existem variantes do processo de laminação hand lay-up que após a junção sobreposta de duas peças, ficam com perfeito acabamento nas duas partes * Equipamentos utilizados * Pistola de gelcoat; * Rolete tira bolha; * Tesoura para corte de mantas e tecidos ; * Pincéis de cerdas duras; * Trinchas para aplicação da resina; * Espátulas e estiletes para rebarbagem; * Cunhas de madeiras ou termoplástico para auxilio de desmoldagem; * Lixadeiras para acabamento. * Sequência operacional * Aplicação de desmoldante ou cera de carnaúba sobre o molde limpo e seco; * Aplicação do gelcoat com rolos ou pistolas; * Após a gelatinização. O ponto exato para se iniciar a laminação sobre o gelcoat acontece quando este, ao ser tocado pelos dedos, apresenta adesividade, mas sem tingir os dedos; * Iniciar a laminação com uma manta de 300g/m², roletando a seguir para compactação da mesma e eliminação de bolhas de ar; * Sequência operacional * Aguadar a redução da temperatura de reação da resina e iniciar a segunda camada com

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