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#1
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+1 |
#2
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Have you tried contacting one of the TPGs? Different types of plastic melt at different temperatures. Given the amount of money TPGs have invested in the technology behind their holders I don't know that they would tell you the type of plastic, but they might give you an approximate melting point. From what I have read on Net54 I would start with SGC because you seem a lot more likely to get an answer from them than you do from PSA.
As you can see here: http://machinist-materials.com/compa...r_plastics.htm and here: http://plastictroubleshooter.com/The...melt_temps.htm there is a lot of variability in melt point. That said, it seems like most plastics have a melt point that is 325-350 or higher. |
#3
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You can do what I did and get a 125 class media safe and not worry about it. They are expensive and you have to get one that pretty large for the space inside.
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In a previous career I worked for a large safe and vault manufacturer. In order to properly protect media and items made of plastic you need a safe with a UL (Underwriters Laboratory) 125 rating. UL 125 means the interior temperature will not rise above 125 Fahrenheit even if exterior temps reach 2000 degrees Fahrenheit. This rating is the requirement for protecting digital information on magnetic media such as DLT or LTO tapes as well as CD's, DVD's and optical disks. Temperatures inside the protected data safe or media safe must be held below 125-degrees Fahrenheit (51.7-degrees Celsius) for the time period specified, such as Class 125-2 Hour, with temperatures up to 2,000-degrees Fahrenheit (1,093.3-degrees Celsius) outside the vault. The temperature reading is taken on six sides of the inside surfaces of the protective safe. Maintaining the temperature below 125-degrees F. is critical because data is lost above that temperature threshold, even if the media or hard drives appear to be intact. They can be purchased online or from a local safe company. Be prepared to pay a large delivery and installation fee as these units are heavy and cumbersome. If you live in New York City, Connetticut or New Jersey I would suggest calling Empire Safe Co. Hope this helps. Aaron |
#5
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Nice recipe Mike
![]() Good discussion points Bryan, Aaron, et al. A UL 125 safe isn't an option for me given my interest to store large items (bat, rifles, imperial cabinets, etc.) at a "reasonable" cost. I may store digital media in the safe but realize that I'm at high risk if my safe is exposed to a long and intense fire. If my digital media becomes important enough I may invest in a small UL 125 safe. The purpose of this post was really to try and understand where card slabs fall in the pecking order. If I had to care for a McGreachery OJ overnight, I want to know the risks and how to best protect it. I do believe damage would occur to our cards within slabs before the plastic's melting point is reached. I know coin holders have wide range of melting points amongst TPGs although it may not be as important for coins since a melted slab may not damage the coin (one such story here). I would hope sports card slabs are held to a higher standard but they may not be. I did broach this subject with SGC at the National several years ago and didn't get much of a response (didn't appear they were hiding anything, but really couldn't answer my question). I suspect the ranking for most to least sensitive items in my safe would go something like this:
If any TPG services are following this thread, I'd love to hear anything you are willing to share on this topic, either privately or publicly.
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Best Regards, Joe Gonsowski COLLECTOR OF: - 19th century Detroit memorabilia and cards with emphasis on Goodwin & Co. issues ( N172 / N173 / N175 ) and Tomlinson cabinets - N333 SF Hess Newsboys League cards (all teams) - Pre ATC Merger (1890 and prior) cigarette packs and redemption coupons from all manufacturers |
#6
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Joe, if you were to look back through my posting history here, you'd see this was an issue I struggled with mightily. I wanted to keep my most valuable cards at home, and I found some really good, secure safes that would offer 2 hours of fire protection, and protect, too, against water. I wasn't worried about moisture, because I found a wireless, renewable dehumidifier that would work perfectly to protect my stored cards. Link on Amazon.com.
The stumbling point was always my concerns about internal temperature. At least early on, the majority of high value pre-war and vintage cards I've bought, and will be buying for the foreseeable future, will be slabbed, and any fire exposure would most surely melt the slabs, ruining the cards. The media safe was the only option I found, but I couldn't fund anything with over 2 cubic feet for under $1,400 delivered. Eventually, I just gave up, and rented a sizable safe deposit box at my bank. It's only a few miles from my home, so I can see the cards any time I want. Once I get my new scanner, I'll be rescanning all the cards I have, and hosting high resolution pictures of them on the website I design. I would love to see an entrepreneur develop a collectibles-specific safe, one that could be used by collectors of baseball cards and ephemera, coins, stamps, comic books, etc. But, in the mean time, my solution was the best, safest answer I could come up with. I will be very interested to see what you end up doing. Good luck! Bill
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Building these sets: T206, 1953 Bowman Color, 1975 Topps. Great transactions with: piedmont150, Cardboard Junkie, z28jd, t206blogcom, tinkertoeverstochance, trobba, Texxxx, marcdelpercio, t206hound, zachs, tolstoi, IronHorse 2130, AndyG09, BBT206, jtschantz, lug-nut, leaflover, Abravefan11, mpemulis, btcarfagno, BlueSky, and Frankbmd. |
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