Hardener?
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Senior User
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From: Southeastern N.C.
Hardener?
First time painting a vehicle. I am going to use a NAPA brand paint and primer do I need any hardener in either, and should I atempt a clearcoat with this brand? Will a matalic paint come into play with either?
Last edited by herothc2003; Nov 15, 2005 at 04:16 PM. Reason: Forgot somthing.
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From: green bay, WI
What is the name of the product you are using. Napa I think is martin seynour but what line are you using. Find the tech sheets for whatever you are using. Many brands can be found online. If it is enamel based single stage, it wouldn't neccessarily need a hardener, but I wouldn't use it without one. If it is urethane based then you need a hardener, it only cures by crosslinking chemically with a hardener. If it is basecoat, some require some sort of activator or reactive reducer, some don't require any. Most clears used nowadays are urethane or polyurethane based and require a hardener. As far as primer, if it is lacquer primer, no hardener is used, urethane primers and epoxy primers require a hardener.
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From: Grants Pass, Or.
I agree, I wouldn't use a product without a catalyst/hardener. It will make the end result glossier, longer lasting, and more chip and chemical resistant. And usually it doesn't cost a whole lot more to go that route.
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From: Northwest Fl
I'm sure you are aware, but it's worth mentioning that a lot of hardeners contain Iscyanates which, to some indivuduals, can be very toxic. Good ventalation and a fresh air breathing system is considered the best protection if you must use these products.
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From: green bay, WI
isocyanates are toxic to all individuals, but some show effects more and quicker then others. They not only enter your system through breathing them in, but also through skin, and they love moisture so your eyes are another place the enter into the body. Read up on them and know what you are dealing with. Tight fitting respriator, with new filters, cover all skin, and wear protecion for the eyes.
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From: Southeastern N.C.
Thanks for info fellas. The first owner of my truck must have had a MACO paint job on it because a year after I had it the clear coat started to come off in a spot or two and then after that it started to spread like cancer. Now about 95% of the clear coat is now gone leaving flat red paint and some primer showing. I am going to take the rest down with a pressure washer and sand it all down to prepare for the paint. Any other tips on preparing for this? Thanks again!
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From: MN - NW of Twin Cities
If the Maaco paint job was applied over the original paint I would suggest you strip all the paint off. Too many coats of paint will cause the new paint to crack or check no matter how clean or well the surface is prepared.
Bruce
Bruce
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From: nevada
Some of these hardeners etc have some bad stuff in them. If you use/buy a respirator, make sure it is rated for same. Even some of the replaceable filter masks are'nt the right type for these materials. Home Depot sells both, I paid about $30 for the good one. You only live once.
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