stripper comparison

[thepianoarts]

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Dan Reed

Dallas Chapter


on 12/31/00 3:13 AM, gutlo at gutlo@bestweb.net wrote:

> 
>> Date: Saturday, December 30, 2000 12:48 PM
>> 
>> Arthur,
>> 
>> You mentioned you would post the results of the comparisons you were
>> going to make between different finish strippers.  If you posted them to
>> the list, I missed it. Have you finished your experiment?  Is the
>> verdict in?
>> 
>> John Voigt
>> 
>> Yes, John and List, the verdict is in.
> 
> I tested Woodfinisher's Pride, Savogran NMP-based stripper, Citristrip, and
> Dyna 2.
> 
> The winner, by any measure, by a huge margin is Dyna 2.
> 
> WP, Savogran, and Citripstrip are all gels.  They are prone to dripping and
> sagging on vertical surfaces, must be re-applied (sometimes 3 times) to be
> effective, and even then don't strip down to the bare wood.  They have a
> pronounced odor (especially Citristrip) and take around 1 hour for each
> application to work.
> 
> Dyna 2 is a heavy paste.  No matter how much you pile on, it will not drip
> or sag.  It has extremely low odor because its NMP penetrates down into the
> coating, not evaporating into the air.  It forms a skin as it works, and
> one hour later, it peels off like a banana skin, revealing the bare wood.
> 
> Its green color acts like an inidicator-when it starts to turn dark brown,
> it's time to test scrape with a spatula.
> 
> These tests were performed on an 1876 Knabe with the original varnish
> finish-very thick and very hard.
> 
> The savings in labor and material with Dyna 2 are significant.  The virtual
> absence of odor is important, as most of us work in small shops where
> ventilation in the cold weather can be a problem.
> 
> Dyna 2 has been available in commercial quantities sold directly to big
> industrial users.  The company has graciously allowed StarHawk Labs to be a
> sort of beta tester.  They have shipped me 6, 1/2 pint containers with tech
> data sheets to give to interested parties on the list.  If the feedback is
> good, StarHawk will become a distributor.
> 
> Dyna 2 will cost $48/gallon.  Citristrip sells in New York for $21/half
> gallon.  This makes Dyna 2 an incredible bargain, at only $6/gallon more,
> for far greater performance and efficiency.
> 
> The first 6 respondents to this posting will received, free of charge, the
> half pint.  I only ask that you post your opinions, good or bad.  Email
> your snailmail address.
> 
> Arthur Grudko
> StarHawk Labs, Manufacturer of PianoLac, the Waterborne That Works