I am testing vacuum sealing cards for water protection

[churlocker]

@newcollector

@churlocker

Dessicant requires periodic reactivation. This would also disrupt the visual appeal.

I had the understanding that it only requires reactivation if it gets saturated with water/moisture. In this scenario it’s there to get rid of any existing moisture already on/inside the case, then it won’t need to absorb any more afterwards. Just curious whether this would work. The visual appeal aspect I totally get.

Yeah, you could probably overcompensate on dessicant and be fine I would guess. As long as the plastic isn’t plugging the porous portion and the air is all accessed by the desiccant.

[zorloth]

@churlocker

My biggest fear would actually be trapped humidity inside the case long term. I’ve seen people’s cards from inside sealed safes get wrecked long term by trapped humidity through cases.

Slabbed cards or just raw cards in hard cases? I would hope that slabs would protect from this, but IDK

[churlocker]

@zorloth

@churlocker

My biggest fear would actually be trapped humidity inside the case long term. I’ve seen people’s cards from inside sealed safes get wrecked long term by trapped humidity through cases.

Slabbed cards or just raw cards in hard cases? I would hope that slabs would protect from this, but IDK

Slabbed. They are semipermeable to protect against trapped humidity. That’s why they aren’t naturally waterproof.

[fritz]

@churlocker

My biggest fear would actually be trapped humidity inside the case long term. I’ve seen people’s cards from inside sealed safes get wrecked long term by trapped humidity through cases.

What if you vacuum seal the card with a silica pack? would the beads even be able to absorb humidity? I mean it’s not a true 100% vacuum so…water molecules can still move?

who here a science boi? I need my questions answered ;_; I’m guessing this wouldn’t work lol

[pfm]

@churlocker

My biggest fear would actually be trapped humidity inside the case long term. I’ve seen people’s cards from inside sealed safes get wrecked long term by trapped humidity through cases.

Exactly. The benefit of allowing water into the case is that it also allows water out of it

Edit: I didn’t see the entire second page of this thread quoting this already, my bad

[qwachansey]

Yes, that is a fear of mine as well. I will be keeping an eye on the cards long term. The vacuum sealer can suck out condensation or liquid along with air when it seals but it may not be enough.

After being submerged overnight they look fine once again. I wonder how long it would take to notice humidity issues within the seal. Months?

[churlocker]

@qwachansey

Yes, that is a fear of mine as well. I will be keeping an eye on the cards long term. The vacuum sealer can suck out condensation or liquid along with air when it seals but it may not be enough.

After being submerged overnight they look fine once again. I wonder how long it would take to notice humidity issues within the seal. Months?

Cases I saw were after years

[ncfcards]

I run breaks, and vacuum seal the cards together prior to shipping… You never know with usps

[qwachansey]

Wow this bump is a throwback! If anyone is curious the cards still look fine!