saco-indonesia.com,
Cara Penggunaan Epoxy ( Primer )
Apakah Primer itu ?
Primer adalah bahan yang digunakan untuk dapat melapisan logam yang sebelumya juga sudah di lakukan dalam proses persiapan tahap awal pengecatan dahulu. yaitu :
Perontokan cat mobil
Pembongkaran bagian mobil
Berikut ini adalah yang termasuk primer :
Epoxy Primer
Epoxy Primer juga merupakan bahan untuk dapat melindungi logam dari proses oxidasi dan bersifat tahan air.
Anda juga harus menggunakanya paling tidak sebanyak 1 atau 2 lapis saja.
Bengkel cat juga menggunakan jenis epoxy primer ini sebelum mereka bisa menggunakan bahan lain untuk dapat lapisan berikutnya. Dikarenakan Epoxy Primer ini juga Tahan terhadap air maka berfungsi juga untuk :
Melindungi bahan yang telah terbuat dari logam dari karat
Melekat sangat bagus pada logam dan akan menghasilkan lapisan dasar yang sempurna untuk proses pengecatan.
Epoxy Surfacer
Epoxy Surfacer telah digunakan untuk dapat melindungi lapisan cat dasar dari bermacam-macam bahan dan pengencer yang terdapat pada produk lapisan atas dan telah memberikan daya lekat yang tinggi. Epoxy Surfacer juga dapat membantu pencapaian kesamaan warna mixing colour pada pengecatan.
Apabila anda akan mengecat diatas cat lama, sangat dianjurkan untuk menggunakan epoxy surfacer ini. ( setelah proses pengamplasan dan degreaser terlebih dahulu )
Akan lebih penting lagi apabila anda tidak mengetahui seberapa bagusnya kualitas cat yang lama untuk dapat ditindih atau dilakukan repaint.
Epoxy Surfacer juga merupakan pilihan produk yang sangat bagus pada saat anda harus menindih cat original mobil yang mana telah di finishing dengan menggunakan pengecatan sistem oven dengan suhu extreme panas.
Lapisan cat original ini juga mempunyai permukaan yang sangat keras dan tahan lama. Oleh sebab itu cat baru yang akan diaplikasikan diatasnya juga harus bekerja keras untuk membaur dan melekat dengan baik diatas cat original.
Menggunakan Epoxy Surfacer juga akan memberikan sentuhan dan perbedaan antara ala kadarnya dan kualitas pengecatan yang sempurna ( maksimal ).
Pastikan anda telah mendiskusikan penggunaan dan pemilihan produk jenis epoxy ini dengan bengkel anda.
Anda juga harus menggunakan panduan dan informasi cara pencampuran perbandingan epoxy yang di sarankan oleh produsen masing - masing produk.
Saat lapisan logam telah menggunakan epoxy primer, primer akan dapat menutup lubang kecil dan guratan amplas pada permukaanya.
Pastikan anda juga menggunakan produk primer yang sama dari produk cat yang akan anda gunakan nantinya.
Kepadatan Primer juga telah mempunyai kemampuan untuk menutup kekurangan pada lapisan dan dapat memberikan lapisan yang bisa di amplas sampai benar-benar halus.
Ingatlah bahwa primer hanya digunakan untuk permukaan yang yang perlu ditutup seperti pada lubang, pori. guratan yang sangat kecil.
Untuk proses terakhir penggunaan primer ini adalah penggunaan cat dasar diatasnya yang bertujuan untuk :
melapisi permukaan bahan epoxy dari proses penyerapan bahan thinner
Meningkatkan daya rekat ke semua produk cat yang akan diaplikasikan diatasnya.
Pastikan anda juga menyiapkan amplas yang cukup untuk dapat menghaluskan primer setelah diaplikasikan. Gunakan amplas basah dan kering ukuran 800.
Epoxy Primer dan Surfacer biasanya tidak memerlukan proses pengamplasan, kecuali hasil aplikasi anda tidak rata dan tidak sempurna maka pengamplasan juga harus dilakukan.
Boleh juga dengan menggungkan epoxi primer untuk dapat menghilangkan cat lama dan keropos pada lapisan logam, Atau dengan langsung menggunakan dempul baru kemudian menggunakan epoxy primer.
Untuk pengecatan baru, idealnya permukaanya juga harus sudah dipersiapkan untuk ditimpa dengan cat yang baru.
Untuk panel yang tergores, anda hanya diharuskan mengisolasi ( masking ) area yang tidak diaplikasikan epoxy. Setelah proses penggunaan epoxy surfacer selesai anda dapat langsung mengecatnya. Pastikan anda harus mengikuti petunjuk cara pemakaian dari produk.
Apabila hanya beberapa bagian dari panel yang akan di epoxy, Pastikan anda harus menggunakan masking yang lebar ( kertas koran bekas ) untuk dapat melindungi bagian lain supaya tidak terkena cipratan semprotan epoxy.
Gunakan tekanan angin yang paling kecil yang direkomendasikan produk, dan semprotkan secara perlahan pada saat menutup goresan atau luka pada spot area. Lepaskan picu semprotan spraygun segera setiap kali setelah anda melewati spot area tersebut. - Reviewer: tokocatmobil lima - ItemReviewed: Cara Penggunaan Epoxy ( Primer )
Editor : Dian Sukmawati
CARA PENGGUNAAN EPOXY
UNITED NATIONS — Wearing pinstripes and a pince-nez, Staffan de Mistura, the United Nations envoy for Syria, arrived at the Security Council one Tuesday afternoon in February and announced that President Bashar al-Assad had agreed to halt airstrikes over Aleppo. Would the rebels, Mr. de Mistura suggested, agree to halt their shelling?
What he did not announce, but everyone knew by then, was that the Assad government had begun a military offensive to encircle opposition-held enclaves in Aleppo and that fierce fighting was underway. It would take only a few days for rebel leaders, having pushed back Syrian government forces, to outright reject Mr. de Mistura’s proposed freeze in the fighting, dooming the latest diplomatic overture on Syria.
Diplomacy is often about appearing to be doing something until the time is ripe for a deal to be done.
Now, with Mr. Assad’s forces having suffered a string of losses on the battlefield and the United States reaching at least a partial rapprochement with Mr. Assad’s main backer, Iran, Mr. de Mistura is changing course. Starting Monday, he is set to hold a series of closed talks in Geneva with the warring sides and their main supporters. Iran will be among them.
In an interview at United Nations headquarters last week, Mr. de Mistura hinted that the changing circumstances, both military and diplomatic, may have prompted various backers of the war to question how much longer the bloodshed could go on.
“Will that have an impact in accelerating the willingness for a political solution? We need to test it,” he said. “The Geneva consultations may be a good umbrella for testing that. It’s an occasion for asking everyone, including the government, if there is any new way that they are looking at a political solution, as they too claim they want.”
He said he would have a better assessment at the end of June, when he expects to wrap up his consultations. That coincides with the deadline for a final agreement in the Iran nuclear talks.
Whether a nuclear deal with Iran will pave the way for a new opening on peace talks in Syria remains to be seen. Increasingly, though, world leaders are explicitly linking the two, with the European Union’s top diplomat, Federica Mogherini, suggesting last week that a nuclear agreement could spur Tehran to play “a major but positive role in Syria.”
It could hardly come soon enough. Now in its fifth year, the Syrian war has claimed 220,000 lives, prompted an exodus of more than three million refugees and unleashed jihadist groups across the region. “This conflict is producing a question mark in many — where is it leading and whether this can be sustained,” Mr. de Mistura said.
Part Italian, part Swedish, Mr. de Mistura has worked with the United Nations for more than 40 years, but he is more widely known for his dapper style than for any diplomatic coups. Syria is by far the toughest assignment of his career — indeed, two of the organization’s most seasoned diplomats, Lakhdar Brahimi and Kofi Annan, tried to do the job and gave up — and critics have wondered aloud whether Mr. de Mistura is up to the task.
He served as a United Nations envoy in Afghanistan and Iraq, and before that in Lebanon, where a former minister recalled, with some scorn, that he spent many hours sunbathing at a private club in the hills above Beirut. Those who know him say he has a taste for fine suits and can sometimes speak too soon and too much, just as they point to his diplomatic missteps and hyperbole.
They cite, for instance, a news conference in October, when he raised the specter of Srebrenica, where thousands of Muslims were massacred in 1995 during the Balkans war, in warning that the Syrian border town of Kobani could fall to the Islamic State. In February, he was photographed at a party in Damascus, the Syrian capital, celebrating the anniversary of the Iranian revolution just as Syrian forces, aided by Iran, were pummeling rebel-held suburbs of Damascus; critics seized on that as evidence of his coziness with the government.
Mouin Rabbani, who served briefly as the head of Mr. de Mistura’s political affairs unit and has since emerged as one of his most outspoken critics, said Mr. de Mistura did not have the background necessary for the job. “This isn’t someone well known for his political vision or political imagination, and his closest confidants lack the requisite knowledge and experience,” Mr. Rabbani said.
As a deputy foreign minister in the Italian government, Mr. de Mistura was tasked in 2012 with freeing two Italian marines detained in India for shooting at Indian fishermen. He made 19 trips to India, to little effect. One marine was allowed to return to Italy for medical reasons; the other remains in India.
He said he initially turned down the Syria job when the United Nations secretary general approached him last August, only to change his mind the next day, after a sleepless, guilt-ridden night.
Mr. de Mistura compared his role in Syria to that of a doctor faced with a terminally ill patient. His goal in brokering a freeze in the fighting, he said, was to alleviate suffering. He settled on Aleppo as the location for its “fame,” he said, a decision that some questioned, considering that Aleppo was far trickier than the many other lesser-known towns where activists had negotiated temporary local cease-fires.
“Everybody, at least in Europe, are very familiar with the value of Aleppo,” Mr. de Mistura said. “So I was using that as an icebreaker.”
The cease-fire negotiations, to which he had devoted six months, fell apart quickly because of the government’s military offensive in Aleppo the very day of his announcement at the Security Council. Privately, United Nations diplomats said Mr. de Mistura had been manipulated. To this, Mr. de Mistura said only that he was “disappointed and concerned.”
Tarek Fares, a former rebel fighter, said after a recent visit to Aleppo that no Syrian would admit publicly to supporting Mr. de Mistura’s cease-fire proposal. “If anyone said they went to a de Mistura meeting in Gaziantep, they would be arrested,” is how he put it, referring to the Turkish city where negotiations between the two sides were held.
Secretary General Ban Ki-moon remains staunchly behind Mr. de Mistura’s efforts. His defenders point out that he is at the center of one of the world’s toughest diplomatic problems, charged with mediating a conflict in which two of the world’s most powerful nations — Russia, which supports Mr. Assad, and the United States, which has called for his ouster — remain deadlocked.
R. Nicholas Burns, a former State Department official who now teaches at Harvard, credited Mr. de Mistura for trying to negotiate a cease-fire even when the chances of success were exceedingly small — and the chances of a political deal even smaller. For his efforts to work, Professor Burns argued, the world powers will first have to come to an agreement of their own.
“He needs the help of outside powers,” he said. “It starts with backers of Assad. That’s Russia and Iran. De Mistura is there, waiting.”
With Iran Talks, a Tangled Path to Ending Syria’s War