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Why epoxy as a wood finish if it's corrosive?

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Forum topic by Jimothy posted 02-24-2016 10:19 AM 662 views 0 times favorited 10 replies Add to Favorites Watch
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Jimothy

9 posts in 400 days


02-24-2016 10:19 AM

Corrosive properties and wood combined doesn’t make much sense in my head. epoxy says corrosive right on the label, yet we use it to glue and finish wood. Somebody want to fill me in?


10 replies so far

View Tony_S's profile

Tony_S

605 posts in 2543 days


#1 posted 02-24-2016 11:25 AM

Though there are hundreds of different formulations and uses, to the best of my knowledge, most(if not all) epoxies are completely inert once fully cured.
Some liquid epoxies can even used to seal the inside walls of home made plywood aquariums.

-- It is the mark of an educated mind to be able to entertain a thought without accepting it. Aristotle

View ClammyBallz's profile

ClammyBallz

309 posts in 596 days


#2 posted 02-24-2016 10:28 PM

The hardener part is acidic, which is why it is labeled as caustic. Once they are mixed together and cure, epoxy is inert.

View conifur's profile

conifur

955 posts in 611 days


#3 posted 02-24-2016 10:54 PM

Totally agree with the last 2. Corrosive to what, salt is corrosive to aluminum but not water, water is corrosive to steel and iron.

-- Knowledge and experience equals Wisdom, Michael Frankowski

View Ger21's profile

Ger21

1047 posts in 2591 days


#4 posted 02-25-2016 12:33 AM

When I hear the term corrosive, I don’t think of it having an effect on wood.
And I’ve never seen epoxy act corrosive. I’ve glues aluminum and steel with it (not together), and it doesn’t damage the metals at all.

-- Gerry, http://www.thecncwoodworker.com/index.html http://www.jointcam.com

View Moron's profile

Moron

5032 posts in 3353 days


#5 posted 02-25-2016 12:37 AM

whats a plywood aquarium look like ?

-- "Good artists borrow, great artists steal”…..Picasso

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Moron

5032 posts in 3353 days


#6 posted 02-25-2016 12:42 AM

is it corrosive and bad for you

yup

it melts sh(! together and it stinks

good old fashioned rules

if it smells bad

if it attaches your fingers together forever and it isnt Kentucky Fried Chicken

its bad ?

-- "Good artists borrow, great artists steal”…..Picasso

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Moron

5032 posts in 3353 days


#7 posted 02-25-2016 12:55 AM

does it become inert once cured ?

probably

but Ive never seen it recycled into pop-cycle sticks

-- "Good artists borrow, great artists steal”…..Picasso

View Moron's profile

Moron

5032 posts in 3353 days


#8 posted 02-25-2016 12:58 AM

then again

i dont buy tv dinners that define what percentage of the plastic container is recycled, let alone the food

if it says organic, God knows it must be : )

-- "Good artists borrow, great artists steal”…..Picasso

View Ger21's profile

Ger21

1047 posts in 2591 days


#9 posted 02-25-2016 02:33 AM

I’ve never seen epoxy melt anything, and it doesn’t have a strong smell either.
Perhaps you’re thinking of polyester resin?

-- Gerry, http://www.thecncwoodworker.com/index.html http://www.jointcam.com

View ClammyBallz's profile

ClammyBallz

309 posts in 596 days


#10 posted 02-25-2016 08:10 PM



whats a plywood aquarium look like ?

It’s a plywood box coated in epoxy with a piece of glass siliconed to the front.

http://www.jonolavsakvarium.com/eng_diy/2200litre/2200litres.html

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