Acetone + Poly = Damage?

[GuitarDoc]

Re: Acetone + Poly = Damage?

Er...yes; that's how he knows he was "ripped off."

Well, if you read his first post, he says that wiping it with ACETONE is what damaged the finish. In a later post he says..."I'm ripped off because I've attacked the finish with [/B]lacquer thinner[/B] and it doesnt do anything to it". In that same post (#16), he says that the urathane finish can be hit by acetone, but it's strong enough to resist lacquer thinner.

These are the results that one should expect with a urathane finish.

Also if you read the title of his post you may get another clue that ACETONE (not lacquer thinner) is what caused the damage.

 

[CTN]

Re: Acetone + Poly = Damage?

the damage isn't the issue though. he feels ripped off because his guitar apparently has a poly finish and not lacquer.

That's like grumbling because the raincoat you have on in the middle of a storm is made of plastic instead of an old-world tight-weave waterproof fabric.

wtf.

 

[ItsaBass]

Re: Acetone + Poly = Damage?

Well, if you read his first post, he says that wiping it with ACETONE is what damaged the finish. In a later post he says..."I'm ripped off because I've attacked the finish with [/B]lacquer thinner[/B] and it doesnt do anything to it". In that same post (#16), he says that the urathane finish can be hit by acetone, but it's strong enough to resist lacquer thinner.

These are the results that one should expect with a urathane finish.

Also if you read the title of his post you may get another clue that ACETONE (not lacquer thinner) is what caused the damage.

I understand ALL of that. Please...

My point was that the issue here is determining the type of finish on his guitar, which he did. Telling him that he should expect that lacquer thinner not damage his urethane finish right after he has posted that he determined that this finish is urethane because lacquer thinner did not damage made little sense. That is all.

 

[Vasshu the humanoid typhoon]

Re: Acetone + Poly = Damage?

zappa quote...shadup and play yer guitar....lol

 

[ItsaBass]

Re: Acetone + Poly = Damage?

Poly or lacquer...makes no difference. We know that.

But the OP was told the guitar was one thing, and it is another. That is the issue.

 

[Vasshu the humanoid typhoon]

Re: Acetone + Poly = Damage?

Don't buy stuff you have not tried....
And do not trash it up if you wanna return it.....kinda braindead thing to do!

 

[hamerfan]

Re: Acetone + Poly = Damage?

I'm ripped off because I've attacked the finish with lacquer thinner and it doesnt do anything to it. So the conclusion is my guitar is painted with very thin urethane finish that can be wiped down with acetone, but strong enough against a lacquer thinner. I've tried my acetone on my MIM strat which is covered by turtle shell thick urethane and do nothing to it except polishing it. The bridge is the same size but different material (alumunium and iron) how can a normal human differentiate it?

The difference is the weight and it is big!

 

[Edgecrusher]

Re: Acetone + Poly = Damage?

This is some fine entertainment. If the type of finish was such a important issue that your willing to ruin the finish to prove it why would you not verify this BEFORE you make the purchase? But now the finish is damaged so if you try to return the guitar you cant and you will take a hit on the resale value of it. Brilliant I say just Brilliant!

 

[GuitarDoc]

Re: Acetone + Poly = Damage?

This is some fine entertainment. If the type of finish was such a important issue that your willing to ruin the finish to prove it why would you not verify this BEFORE you make the purchase? But now the finish is damaged so if you try to return the guitar you cant and you will take a hit on the resale value of it. Brilliant I say just Brilliant!

Indeed!!

 

[Redmist]

Re: Acetone + Poly = Damage?

This thread confuses me somewhat, and obviously some of you lot as well ....


Acetone does not affect poly, but will melt a laquer finish. I don't know why people think otherwise but I have used acetone to clean poly many times with no problems. It is possible to dilute acetone with water, or any other solvent, but as supplied, it is pure acetone and does not come in "different strengths".


It sounds like the "pro" got it wrong, and the guitar does indeed have a laquer finish as the acetone melted it, so the OPoster wasn't ripped off at all.

It was, however, a dumb-assed thing to do, when he wiped a laquer finished guitar with acetone to prove indeed that it was a damageable laquer finish.

(I would blame the "pro", but not to the extent that he is liable or anything :- he didn't suggest using acetone to clean it)

 

[ItsaBass]

Re: Acetone + Poly = Damage?

This thread confuses me somewhat, and obviously some of you lot as well ....


Acetone does not affect poly, but will melt a laquer finish. I don't know why people think otherwise but I have used acetone to clean poly many times with no problems. It is possible to dilute acetone with water, or any other solvent, but as supplied, it is pure acetone and does not come in "different strengths".


It sounds like the "pro" got it wrong, and the guitar does indeed have a laquer finish as the acetone melted it, so the OPoster wasn't ripped off at all.

It was, however, a dumb-assed thing to do, when he wiped a laquer finished guitar with acetone to prove indeed that it was a damageable laquer finish.

(I would blame the "pro", but not to the extent that he is liable or anything :- he didn't suggest using acetone to clean it)

As was mentioned earlier in the thread, there are different types of things that we generally call "poly" in the guitar community. It is kind of used to describe and "plasticy" finish, regardless of the exact type. IME, acetone (and lacquer thinner go right through old '70's Fender "poly," but quick. OTOH, they don't harm some "poly" finishes one bit. Probably due to a change in the plastics over the years.