can i use month old clear ?
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well i am learning from you.so i need some expertise on the issue of clear.
when i painted my Accord some of clear was left ,about one litre(with hardener/catalyst in it).can i use this on onother object like bycycle.and if i would have to add more hardener in it to activate.If it is 1 month old, with hardener in it, it should be completely hardened (no longer a liquid). If it is still liquidy, there is probably something wrong. In either case, it is garbage.
[quote=”Ben” post=21171]If it is 1 month old, with hardener in it, it should be completely hardened (no longer a liquid). If it is still liquidy, there is probably something wrong. In either case, it is garbage.[/quote]
its a nexa system clear.it is still in liqud form (made in korea).i have even used 5 month old clear which i brought from my friend but i could not utilize it at that time.recently i add some hardener(two table spoon) and sprayed it over a door. though it completely dried in two days but i think it has less shine.
in your part of the world you use hplw guns which combat orange peel.but here in pakistan i know painters who use simple conventional gun,with no clear run and it require no sanding.completely smooth. i think you use very powerful hardener.wow, :huh: i have never heard of such a thing. if you add a hardener to a clear it cannot be used after a half an hour, because it starts to harden.
[quote=”kuki” post=21175][quote=”Ben” post=21171]If it is 1 month old, with hardener in it, it should be completely hardened (no longer a liquid). If it is still liquidy, there is probably something wrong. In either case, it is garbage.[/quote]
its a nexa system clear.it is still in liqud form (made in korea).i have even used 5 month old clear which i brought from my friend but i could not utilize it at that time.recently i add some hardener(two table spoon) and sprayed it over a door. though it completely dried in two days but i think it has less shine.
in your part of the world you use hplw guns which combat orange peel.but here in pakistan i know painters who use simple conventional gun,with no clear run and it require no sanding.completely smooth. i think you use very powerful hardener.[/quote]Huh. I’ve never heard of clear like that. Maybe you guys have completely different products than we do. Best thing would probably be to check the tech sheet and see what it says in regards to the pot life of the mixed product.
Here, we mostly use either HVLP or RP (compliant guns). They are very good at atomizing the clear coat, and when setup properly allow the clear to go on very smooth. With the exception of some high end resorations and what not, our clears almost never get polished. Orange peel is usually caused by user error rather than equipment, however poor equipment can make it harder to achieve a good finish. As far as hardeners go, yes they are very strong.
[quote=”smooth” post=21176]wow, :huh: i have never heard of such a thing. if you add a hardener to a clear it cannot be used after a half an hour, because it starts to harden.[/quote]
i think its Korean.it cost Pak Rs 1700( for $ divide it with 85) the other brand comes fro Malaysia and it costs Rs2500.
here in Pakistan painters keep very low pressure on conventional guns. they spry at a distance of half foot.the key factor of the whole procedure is to how much paint to be thinned. so they thin the paint according to pressure and distance.believe me some car i have seen were even better than original paint.I found the company’s web site with TDS (tech sheets). [url=http://www.autorefinishes.co.kr/]click here[/url]
It states that the clear only has a 3 hour pot life. That is, once you have mixed in the hardener, your clear must be used within 3 hours to have proper performance. After that 3 hours, any unused mixed clear should be disposed of.
Which hardener did you use with the clear?
[quote=”Ben” post=21184]I found the company’s web site with TDS (tech sheets). [url=http://www.autorefinishes.co.kr/]click here[/url]
It states that the clear only has a 3 hour pot life. That is, once you have mixed in the hardener, your clear must be used within 3 hours to have proper performance. After that 3 hours, any unused mixed clear should be disposed of.
Which hardener did you use with the clear?[/quote]
wow.good work.
in fact when i paid Rs1700 the dealer gave me a set of two, the can shown in pic and another small can (green) from same brand ,which read Hardener on it.i wish i had not thrown the can. interestingly here we can find hardener as per our demand. i can purchase even small quantity worth Rs 100 which he pour in a small plastic can.you said that it should be consumed in 3 hours , i think its a ideal thing to do. but i have used 5 month old though it took more time to dry with a less brightness. you can experiment with some old clear on fridge or something else. but you have to add two to thre table spoon fresh hardener. its my recipe.
I think that all the problems u are having on your accord is because there is not enuff hardener put in that clear as it states on the can to mix 2 parts clear to 1 part hardener.. so after it is mixed the proper way and it kicks over it will get hard in whatever u mixed it with and should turn to a solid form rather then a liquid..
[quote=”smooth” post=21176] if you add a hardener to a clear [b]it cannot be used after a half an hour[/b], because it starts to harden.[/quote]
Well, thats not exactly correct. I am unaware of any catalysed clearcoat system that becomes unusable after 30 minutes!
Even using a PPG D863 accelerated hardener, my potlife is 3 hours at 20 degrees celcius. With normal hardener, it extends to 6 hours at the same temperature.
That said, you can extend the potlife somewhat by leaving the catalysed clear in the fridge.
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