Ful-poxy as a sealer
- This topic has 6 replies, 3 voices, and was last updated 14 years, 5 months ago by .
- Posts
Hi,
I use Nason ful-Poxy (491-16) and i know it’s possible to reduce with lacquer thinner for sealing. Can you know how much thinner can mix ? Instead, is it better to use Ful-seal 422-23 ?
Thanks
No you cannot reduce with lacquer thinner. read the tech sheet, it will tell you if you can reduce it, how much and what product to use. If it is anything like the Dupont epoxy it will not need reducer.
Lacquer thinner is only for cleaning guns and reducing lacquer paint. Most lacquer thinners now days aren’t even a good enough grade to reduce lacquer paint with them anymore.
http://pc.dupont.com/dpc/en/US/html/visitor/common/pdfs/b/product/nsn/Nason/491-16.pdf
That is the tech sheet. It says nothing of reducing it. Make sure to adhere to the induction time. it is important with Duponts epoxies.
If you are dead set on reducing use a high grade urethane reducer. No more than 10%. Personally I wouldn’t reduce.
Ok but i’m french Canadian and the specs sheet tell other thing about that (Canadian french site). Some products spec sheets are not exactly the same, i dont know why!
http://dpcprd.asp.dupont.com/dpc/fr/ca/html/prodinfo/nason/french_tds/TDS_491-16_F.pdf
Anyway, i don’t use thinner for seal if it’s not necessary.
Thanks
Sorry I can’t read french! Do they state lacquer thinner or just thinner. Sometimes reducer is called thinner.
It says it may be re coated with any Nason topcoat, [b]”COUCHES DE FINITION:Toutes les couches de finition Nason.”[/b] and it says, [b]”Il peut être recouvert avec n’importe quel système de finition.”[/b] (may be recoated with all finishing systems).
So according to the French Tech-sheet it seems to say that it is ok to spray your paint right over top. The 422-23 sealer is only a 1k product anyway. I would personally shy away from that.
Personally I wouldn’t use either product. Instead I would use the DuPont 25XXs series of DTM Epoxy Primer Sealers. They can be applies direct to metal, give excellent adhesion/corrosion resistance and do not require a sealer. They lay down really nice so it makes a great foundation for your paint. If you want a quick easy 1 step product, this is it. I have used it for many years with great success and it works well with Nason products.
Good luck!
Merci Ben
May be try 25XX on my next job.
- You must be logged in to reply to this topic.