TRACTOR PARTS Allis Chalmers Case & David Brown Farmall & International Ferguson Ford & New Holland John Deere Massey Ferguson Massey Harris Minneapolis Moline Oliver & Cockshutt Kubota / Yanmar

TRACTOR MANUALS

Allis Chalmers	Case	Farmall IH	Ford 8N,9N,2N	Ford
Ferguson	John Deere	Massey Ferguson	Minn. Moline	Oliver

Antique Tractor Paint and Bodywork

Re: Shelf life of hardener

[Show Entire Topic]

Welcome Guest, Log in or Register

Author

john in la

09-27-2004 18:24:40

Report to Moderator

Thanks CNKS;
I am like you. To much work to take a chance on might not work correctly.
If their is no way to look at it and tell if it is good or not with out using it then it is trash.
I would rather pay for another can than chance a half a$$ job.

[Log in to Reply] [No Email]

Frank Stalfire

09-27-2004 20:00:08

Report to Moderator

Re: Shelf life of hardener in reply to john in la, 09-27-2004 18:24:40

HI John
Although I work for Dupont and you are using PPG we all buy Isocynate from the same supplier, the Bayer corp.what solvent or concentration of Iso's and blends of solvent we use are unique. The thing with Iso's is they crosslink with themselves in the presence of moisture and by solvent evaporation, using the freezer slows solvent evaporation by will not stop the crosslinking with itself from moisture. We, DuPont, only give a 6 month warranty on UNopened cans and want you to use the activator within two weeks after opening. So, all this means exactly what you've been hearing, use it up or replace it.
Frank

[Log in to Reply] [No Email]

Rod (NH)

09-28-2004 17:52:57

Report to Moderator

Re: Shelf life of hardener in reply to Frank Stalfire, 09-27-2004 20:00:08

Hi Frank,

Is this something new from DuPont? Their 8105S urethane activator for Centari AE has no indication on the label that I can see. The can I have is about 3 years old so that maybe the reason. There is no indication that the contents should be used within 14 days of first opening and nothing mentioned about any 6 month limit on warranty of "unopened" cans. The only caution that I can find along those lines is that it says to "Keep container of 8105S tightly closed." There is also no indication of time dependent usage constraints in the tech sheet for the Centari Ultra mix that uses that particular activator. How can a part time purchaser of such products tell when any 6 month warranty begins and ends? Are there now date stamps or serial number indicators on the can labels? In my neck of the woods a can of 8105S could very well sit on a retailers shelf for 6 months :o). I realize that DuPont warranties may not apply to DIY users (e.g. "not for use by the general public" labeling) that are not trained and "certified" by DuPont but I am curious as to how things are tracked in the pro shops regarding such time windows.

Rod

[Log in to Reply] [No Email]

Frank Stalfire

09-28-2004 20:32:35

Report to Moderator

Re: Shelf life of hardener in reply to Rod (NH), 09-28-2004 17:52:57

Hi Rod
I guess the problem is Nothing Dupont or any of the 3 major paint manufactuers make are intended nor directed to the DIYer and 80% of what we sell is developed for the collission refinish market, the other 20 would be fleet. That in mind the shops and our distribution network, called jobbers, are focused on cycle times and inventory rotations, we make our jobbers responsible for selling the customer "fresh" product. So when I mention we only warrant activator for 6 months that is more of an internal policy that we press our jobbers about, if the jobber decides he will warrant a product longer he is able to do so since the distributers are independently owned and the money would come out of there pocket. Hope that makes sense.

[Log in to Reply] [No Email]

CNKS

09-28-2004 08:08:33

Report to Moderator

Re: Shelf life of hardener in reply to Frank Stalfire, 09-27-2004 20:00:08

Frank--Do you think the gas will work? Some people swear by it. I haven't had enough experience with it to have an opinion. I'm not asking for the official DuPont stand, just what you think.

[Log in to Reply] [No Email]

Frank Stalfire

09-28-2004 11:35:40

Report to Moderator

Re: Shelf life of hardener in reply to CNKS, 09-28-2004 08:08:33

I also have had no experience with that approach, sounds like it covers the bases, keeps product sealed and dry, I was talking to another Duponter today and asked if he had heard of such a thing, he did not. If I talk to a chemist this week I will ask and let you know what they say. By the way, off the record, I myself have used hardener that was at least 6 months old with no problems, also I know of no long term affect of using expired hardener, the issue is the application, old hardener will make paint look "seedy" in the can and on the surface of the car.

[Log in to Reply] [No Email]

Big Jim

09-27-2004 23:35:37

Report to Moderator

Re: Shelf life of hardener in reply to Frank Stalfire, 09-27-2004 20:00:08

The real answer seems to be : It varies. 14 days is going to be a lot different in Miami than in the cool, dry Rockies.
By all means, if you are nervous about it, buy fresh hardener. I will go on adding pure argon to my cans of hardener and sealing out anything that can reach the surface of the hardener. I will store it in a protected area tightly capped. And I'll continue using my 2-year-old hardener without any difficulty. I would bet money that the 14 day / 6 month thing is included on the packaging at the insistance of the lawyers and not the chemists. They don't want any image problems so they take the worst-case senario and cut it in half just to be sure.

[Log in to Reply] [No Email]

Big Jim

09-27-2004 23:29:44

Report to Moderator

Re: Shelf life of hardener in reply to Frank Stalfire, 09-27-2004 20:00:08

The real answer seems to be : It varies. 14 days is going to be a lot different in Miami than in the cool, dry Rockies.
By all means, if you are nervous about it, buy fresh hardener. I will go on adding pure argon to my cans of hardener and sealing out anything that can reach the surface of the hardener. I will store it in a protected area tightly capped. And I"ll continue using my 2-year-old hardener without any difficulty. I would bet money that the 14 day / 6 month thing is included on the packaging at the insistance of the lawyers and not the chemists. They don"t want any image problems so they take the worst-case senario and cut it in half just to be sure.

[Log in to Reply] [No Email]

[Show Entire Topic] [Options] [Printer Friendly] [Posting Help] [Return to Forum] [Log in to Reply]

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home | Forums

Copyright © 1997-2023 Yesterday's Tractor Co.
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy