Is this mold?

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#1 5 years ago

OP

KJB

dudah

Pinside+ Frequent

Algonquin, IL

11y 101K 2,979 10

Inspecting the turd of a Xenon I recently acquired (https://pinside.com/pinball/forum/topic/the-dirtiest-xenon-on-planet-earth). And noticed some white reside on the bottom of the head, back of the display board, and on some screws.
What is this?
Mold? Corrosion?
It's only in the head. There's no alkaline corrosion on the boards. Somebody snipped the battery in time.
I'm pretty sure the game was stored outside for some time.
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2

#2 5 years ago

LUC

luch

Pinside+ Frequent

Newmarket, ON

11y 109K 3,559 74

corrosion

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#3 5 years ago

JDD

jackd104

Pinside+ Frequent

11y 101K 3,877 11 14 2

Mold

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1

#4 5 years ago

BUZ

Buzz

Pinside+ Frequent

9y 106K 3,115

Both

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8

#5 5 years ago

TOM

tomtest

Tom

Hagerstown, MD

11y 79,050 1,371 7 7

Only way to know for sure is to taste it, if you live it was corrosion, if you don't it was mold.

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#6 5 years ago

DEW

Damonator

Pinside+ Addict

10y 121K 3,150 35 8

Mold - wipe it down with diluted bleach to kill it.

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#7 5 years ago

MRM

mrm_4

Pinside+ Frequent

6y 126K 6,206 11

Can’t you get a mold testing kit at a hardware store to be sure?

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1

#8 5 years ago

MJA

Mitch

Pinside member

Wellesley, ON

10y 131K 5,030 18 38

Clean it off. Not a big deal.

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1

#9 5 years ago

MAT

snyper2099

Cincinnati Pinball

16y 103K 7,645

That’s considered “pitting corrosion”. It’s what happens to aluminum when exposed to water and oxygen. It’s no more harmful than inhaling any other substance found in your average pinball machine. Lol.

Wherever there was moisture, mold is a real possibility as well. I mean, if you are really concerned, you shouldn’t be pulling it apart to clean the corrosion, regardless of what is present. Your average search for pitted aluminum or mold spores can give you the same information and what precautions to take.