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| | | | Joined: Jul 2005 Posts: 946 'Bolter | | 'Bolter Joined: Jul 2005 Posts: 946 | Tomorrow I plan on spraying a coat of epoxy and 2k on my 55.2 cab now that I am done with the body work. About a year ago I had the cab sandblasted and a coat of epoxy applied (I am using Nason Ful Poxy and their 2k primer).
I have been sanding all day and it is very hard to get a uniform dullness, the epoxy is extremely hard to sand. My question is this:do I have to sand the old epoxy to a perfect uniform smoothness i.e. no shiny areas before applying a second coat? I thought epoxy "bit" into the underlying layer. My second question is how long do I wait before spraying 2k over the epoxy? I am having trouble finding the Nason data sheet online. | | | | | Joined: Jan 2009 Posts: 1,644 Shop Shark | | Shop Shark Joined: Jan 2009 Posts: 1,644 | The very best way to find out about Your paint is to ask the place Your buying Your paint from and do what they say to do they get feed back from people using that paint and can give You the data sheets or print them out for You.
Pete | | | | | Joined: Jul 2005 Posts: 946 'Bolter | | 'Bolter Joined: Jul 2005 Posts: 946 | I found the data sheet on the Ful Poxy and 2K, but it still doesn't tell me how long to wait before I can topcoat it with 2k? | | | | | Joined: Jul 2009 Posts: 70 New Guy | | New Guy Joined: Jul 2009 Posts: 70 | according to this: nason full poxy tech sheet you can topcoat with compatible products in 1 to 1.5 hours. if you wait more than 72 hours, you need to sand the epoxy sealer | | | | | Joined: Jul 2005 Posts: 946 'Bolter | | 'Bolter Joined: Jul 2005 Posts: 946 | Marklaken,
Thanks for the data sheet. The data sheet I found didn't have the DRY TIME on it.
I just finished spraying two coats of epoxy. Took a shower and popped a beer figuring I could wait 48 hours (Wednesday night) to topcoat it. Now it looks like I am in for a long night!
I noticed it did say that you had to sand if it is over 72 hours. Do you think I could get away with waiting 48 hours with no sanding? I do have some minor runs and nibs to take care of.
I will post pics in a second. | | | | | Joined: Jul 2005 Posts: 946 'Bolter | | 'Bolter Joined: Jul 2005 Posts: 946 | Here is a pic of the truck in epoxy. 55.2 with epoxy | | | | | Joined: Jul 2009 Posts: 70 New Guy | | New Guy Joined: Jul 2009 Posts: 70 | truck looks good...my understanding is that within 72 hours, the epoxy primer is still soft enough to bond with the 2k primer's reducers - thus negating the need to sand. Also, if your shop temperatures are lower than 70 degrees, you probably have more than a 72 hour window. I would try to recoat within that recoat window, becuase alot of epoxy primers sand like garbage. | | | | | Joined: Jul 2005 Posts: 946 'Bolter | | 'Bolter Joined: Jul 2005 Posts: 946 | I going to do it tonight because it has been 75-80 here. I have a few runs and of course a couple bugs to sand off. The majority of my spraying looks really good.
Thanks for your help!
Michael
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