Do you replace your Mylars?

[Paladin]

I've got some Timelocks holding comics going on 10 years. Mylar is supposed to last a while right? I change some of them sometimes.

[blowout]

Mylar is pretty much inert and will last longer than you. So no, you don't need to change them.

[Paladin]

Looks like I've been doing the right thing with the 10-year old Timelocks I have.

[aardvark88]

Depends if u have backing boards inside those mylars. May want to replace your boards. Saw a 6-8 yr old acidic board w/ gross yellow oily stains yesterday inside a mylared comic I was buying. At least I got the comic cheap b/c it was probably priced 6 yrs ago.

[fantastic_four]

I asked Bill Cole how often you should replace the 3% calcium carbonate buffered boards he sells. Here's his response:

You don't have to. That is why they are so expensive.

[JLA_ALL_THE_WAY]

I have sent in books that I mylared (with NO backboards) as far back as '83. All have come back OW-White to WHITE with no visible damage. I'm talkin issues from 1960-65. I do send them to CGC in the original loc-top mylars (why take chances?).

 

So that should tell you that they hold there own at least 20 years.

 

Rick