Полимочевина для автомобиля. Что это дает и как это работает

Полимочевина это двухкомпонентный полимер, наносимый в горячем состоянии на кузов автомобиля. Полимочевина застывает очень быстро, буквально несколько минут. Благодаря этому можно наносить толстые слои. А для чего нужен толстый слой? Молекула воды самая маленькая молекула. Вода проникает везде. Это вопрос времени. Поэтому коррозионная стойкость автомобиля напрямую зависит от толщины нанесенного на него слоя краски.

В 2001 году мне в руки попал толщиномер и я ради любопытства начал измерять толщину краски на разных автомобилях. На иномарках 90-х годов толщина составляла не менее 150 микрон, на отечественных автомобилях 35-50 микрон. Вот Вам и причина разницы в скорости ржавления. В настоящее время, толщина краски на иномарках 50 – 120 микрон. Не зависит от марки автомобиля. Толщина разная по всему кузову! «Жучки» появляются на капоте и крыше после двух – трех лет эксплуатации (это я про эксплуатацию в Питере). Одноразовый мир, одноразовые вещи покупаемые в кредит…. Потребление нынче в моде.

Помимо повышения коррозионной стойкости кузова, толстый слой полимочевины играет роль виброизоляции, а также теплоизоляции. Машина меньше гремит, дольше остывает зимой и медленнее нагревается летом.

Если кузов автомобиля уже корродирован, то даже тщательное вычищение ржавчины не предотвратит довольно скорого повторного появления «жучков» на свежевыкрашенном кузове.

Полимочевина, нанесенная на автомобиль толстым слоем формирует «второй» полимерный кузов. Он накрепко приклеен к основному железному. Полимочевина наносится в горячем (75 градусов) состоянии. В процессе полимеризации она еще больше разогревается. Железный кузов также нагревается, зазоры расширяются и пластичный полимер глубже проникает в них. Когда кузов остынет, то он сожмется обратно и зазоры между листами металла могут вообще исчезнуть. Кузов станет жестче.

Что касается корродированных участков, то они будут погребены под толстым слоем полимера. Путь воде и воздуху будет перекрыт. Ржавление остановится. Здесь конечно, есть свои ограничения и возможности, но лучшего за разумные деньги не придумать.

Полимочевина для автомобиля. Что это дает и как это работает: 27 комментариев

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