Anyone Use Isopropyl Alcohol instead of DNA?

[TonyL]

I saw a post a FB, asking the same question. We use IPA on or kitchen counter tops (stone). I have strictly used DNA to wiped-down by wood blanks adter sanding.


DNA vs Isopropyl

 

[NJturner]

I've stuck to DNA simply because water is a component in most Isopropyl alcohol bottles sold in local stores, more or less depending on the dilution rate (usually shown on the bottle). I know it is sold in a more pure form from lots of different sources, but usually when someone asks me about using it, it's from the drug store and a max of 91% alcohol.

Since water is not always wood friendly or helpful, I prefer DNA for more predictability for what it will do. I am not super thrilled with the flammability of DNA in my shop environment however, and keep it stored in a metal can or in my flammable materials metal cabinet. I have a small metal trash can in my shop with a tight lid that is my disposal place for used finish or alcohol rags. I've got a deep fear of fire from past experiences, so caution is always forefront for me.

Kevin

 

[TonyL]

I've stuck to DNA simply because water is a component in most Isopropyl alcohol bottles sold in local stores, more or less depending on the dilution rate (usually shown on the bottle). I know it is sold in a more pure form from lots of different sources, but usually when someone asks me about using it, it's from the drug store and a max of 91% alcohol.

Since water is not always wood friendly or helpful, I prefer DNA for more predictability for what it will do. I am not super thrilled with the flammability of DNA in my shop environment however, and keep it stored in a metal can or in my flammable materials metal cabinet. I have a small metal trash can in my shop with a tight lid that is my disposal place for used finish or alcohol rags. I've got a deep fear of fire from past experiences, so caution is always forefront for me.

Kevin

Thanks!

 

[Woodchipper]

Isopropyl alcohol can be 71% or 91%. I used 91% in the past of a business but now use DNA 100%.

 

[duncsuss]

I suspect the biggest difference is evaporation rate. 70% Isopropyl (with 30% water) can take minutes to dry off, DNA typically is much faster.

 

[TonyL]

I suspect the biggest difference is evaporation rate. 70% Isopropyl (with 30% water) can take minutes to dry off, DNA typically is much faster.

Never thought of that.

 

[howsitwork]

both work but isopropyl , if it has the higher water content raises grain slightly . Relevance depends on the job in hand , eg if i'm wiping out oily woods before gluing tubes it it's irrelevant but if it's wiping wood surface you might need to denib with very fine paper after

 

[d_bondi]

When wiping extremely oily woods, I use Acetone.

 

[Lmstretch]

I have used IPA in the past and have had no issues.