umroh maret,

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


As he reflected on the festering wounds deepened by race and grievance that have been on painful display in America’s cities lately, President Obama on Monday found himself thinking about a young man he had just met named Malachi.

A few minutes before, in a closed-door round-table discussion at Lehman College in the Bronx, Mr. Obama had asked a group of black and Hispanic students from disadvantaged backgrounds what could be done to help them reach their goals. Several talked about counseling and guidance programs.

“Malachi, he just talked about — we should talk about love,” Mr. Obama told a crowd afterward, drifting away from his prepared remarks. “Because Malachi and I shared the fact that our dad wasn’t around and that sometimes we wondered why he wasn’t around and what had happened. But really, that’s what this comes down to is: Do we love these kids?”

Many presidents have governed during times of racial tension, but Mr. Obama is the first to see in the mirror a face that looks like those on the other side of history’s ledger. While his first term was consumed with the economy, war and health care, his second keeps coming back to the societal divide that was not bridged by his election. A president who eschewed focusing on race now seems to have found his voice again as he thinks about how to use his remaining time in office and beyond.

Continue reading the main story Video
Play Video|1:17

Obama Speaks of a ‘Sense of Unfairness’

Obama Speaks of a ‘Sense of Unfairness’

At an event announcing the creation of a nonprofit focusing on young minority men, President Obama talked about the underlying reasons for recent protests in Baltimore and other cities.

By Associated Press on Publish Date May 4, 2015. Photo by Stephen Crowley/The New York Times.

In the aftermath of racially charged unrest in places like Baltimore, Ferguson, Mo., and New York, Mr. Obama came to the Bronx on Monday for the announcement of a new nonprofit organization that is being spun off from his White House initiative called My Brother’s Keeper. Staked by more than $80 million in commitments from corporations and other donors, the new group, My Brother’s Keeper Alliance, will in effect provide the nucleus for Mr. Obama’s post-presidency, which will begin in January 2017.

“This will remain a mission for me and for Michelle not just for the rest of my presidency but for the rest of my life,” Mr. Obama said. “And the reason is simple,” he added. Referring to some of the youths he had just met, he said: “We see ourselves in these young men. I grew up without a dad. I grew up lost sometimes and adrift, not having a sense of a clear path. The only difference between me and a lot of other young men in this neighborhood and all across the country is that I grew up in an environment that was a little more forgiving.”


Organizers said the new alliance already had financial pledges from companies like American Express, Deloitte, Discovery Communications and News Corporation. The money will be used to help companies address obstacles facing young black and Hispanic men, provide grants to programs for disadvantaged youths, and help communities aid their populations.

Joe Echevarria, a former chief executive of Deloitte, the accounting and consulting firm, will lead the alliance, and among those on its leadership team or advisory group are executives at PepsiCo, News Corporation, Sprint, BET and Prudential Group Insurance; former Secretary of State Colin L. Powell; Senator Cory Booker, Democrat of New Jersey; former Attorney General Eric H. Holder Jr.; the music star John Legend; the retired athletes Alonzo Mourning, Jerome Bettis and Shaquille O’Neal; and the mayors of Indianapolis, Sacramento and Philadelphia.

The alliance, while nominally independent of the White House, may face some of the same questions confronting former Secretary of State Hillary Rodham Clinton as she begins another presidential campaign. Some of those donating to the alliance may have interests in government action, and skeptics may wonder whether they are trying to curry favor with the president by contributing.

“The Obama administration will have no role in deciding how donations are screened and what criteria they’ll set at the alliance for donor policies, because it’s an entirely separate entity,” Josh Earnest, the White House press secretary, told reporters on Air Force One en route to New York. But he added, “I’m confident that the members of the board are well aware of the president’s commitment to transparency.”

The alliance was in the works before the disturbances last week after the death of Freddie Gray, the black man who suffered fatal injuries while in police custody in Baltimore, but it reflected the evolution of Mr. Obama’s presidency. For him, in a way, it is coming back to issues that animated him as a young community organizer and politician. It was his own struggle with race and identity, captured in his youthful memoir, “Dreams From My Father,” that stood him apart from other presidential aspirants.

But that was a side of him that he kept largely to himself through the first years of his presidency while he focused on other priorities like turning the economy around, expanding government-subsidized health care and avoiding electoral land mines en route to re-election.

After securing a second term, Mr. Obama appeared more emboldened. Just a month after his 2013 inauguration, he talked passionately about opportunity and race with a group of teenage boys in Chicago, a moment aides point to as perhaps the first time he had spoken about these issues in such a personal, powerful way as president. A few months later, he publicly lamented the death of Trayvon Martin, a black Florida teenager, saying that “could have been me 35 years ago.”

President Obama on Monday with Darinel Montero, a student at Bronx International High School who introduced him before remarks at Lehman College in the Bronx. Credit Stephen Crowley/The New York Times

That case, along with public ruptures of anger over police shootings in Ferguson and elsewhere, have pushed the issue of race and law enforcement onto the public agenda. Aides said they imagined that with his presidency in its final stages, Mr. Obama might be thinking more about what comes next and causes he can advance as a private citizen.

That is not to say that his public discussion of these issues has been universally welcomed. Some conservatives said he had made matters worse by seeming in their view to blame police officers in some of the disputed cases.

“President Obama, when he was elected, could have been a unifying leader,” Senator Ted Cruz of Texas, a Republican candidate for president, said at a forum last week. “He has made decisions that I think have inflamed racial tensions.”

On the other side of the ideological spectrum, some liberal African-American activists have complained that Mr. Obama has not done enough to help downtrodden communities. While he is speaking out more, these critics argue, he has hardly used the power of the presidency to make the sort of radical change they say is necessary.

The line Mr. Obama has tried to straddle has been a serrated one. He condemns police brutality as he defends most officers as honorable. He condemns “criminals and thugs” who looted in Baltimore while expressing empathy with those trapped in a cycle of poverty and hopelessness.

In the Bronx on Monday, Mr. Obama bemoaned the death of Brian Moore, a plainclothes New York police officer who had died earlier in the day after being shot in the head Saturday on a Queens street. Most police officers are “good and honest and fair and care deeply about their communities,” even as they put their lives on the line, Mr. Obama said.

“Which is why in addressing the issues in Baltimore or Ferguson or New York, the point I made was that if we’re just looking at policing, we’re looking at it too narrowly,” he added. “If we ask the police to simply contain and control problems that we ourselves have been unwilling to invest and solve, that’s not fair to the communities, it’s not fair to the police.”

Moreover, if society writes off some people, he said, “that’s not the kind of country I want to live in; that’s not what America is about.”

His message to young men like Malachi Hernandez, who attends Boston Latin Academy in Massachusetts, is not to give up.

“I want you to know you matter,” he said. “You matter to us.”

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