Q&A - Science Behind Wood Coatings

jfynyson

Jeremy
User
Hey,
If you're like me and have been very confused or overwhelmed when trying to first learn about/understand wood coatings then know that I have a great opportunity coming my way next week (1/23/2020). I'll be having lunch with someone that is an expert the wood coatings industry and can explain the science behind it. He'll be there to answer any questions I have as a courtesy. I'm a scientist and love to try and grasp what's actually going on in different wood finishing formulations. Why certain solvents, resins, etc are used and why others are not used in certain situations.

I took the time a couple years ago to lay out in more clear terms (bullet pt format) to help me visual the differences, benefits, and trade offs of different types of top coat/finish. Sure, there are tons of books and other tutorials on this topic that one could look up but I just wanted it all in one easy/quick guide visual format. This up coming meeting will be for me to understand what I've not easily found in my brief non-exhaustive research.

My Ask To You
  • I would like to take any questions you would like to know about any wood coatings to this meeting and get answers to your curious questions if possible. So, post to this thread between now and 1/23/2020 and I'll see if he has the answers to our questions. I'll post the answers back on this thread once completed (assuming we get answers to all of them).

Thanks,
Jeremy Finison
 

Willemjm

Willem
Corporate Member
Thanks Jeremy.

My question:

How many professional shops have switched to water based coatings?

I have ventured that way many times, but simply cannot afford the extra time it takes to wait for drying between coats, the more difficult scuff sanding of the first coat and the care one has to take with laying down correct film thickness without experiencing micro bubbles.

My typical process is sand to 220, spray a seal coat of solvent based conversion varnish, handle the item after 15 minutes and a very light scuff sand with 320 grit 30 minutes later. A final coat follows, can be handled 15 minutes later and I am done. That is one hour maximum for a professional extremely durable finish.

I cannot get even close to that with water based and have tried most of them.
 

Oka

Oka
Corporate Member
My experience with all the low voc is the coating thickness, like you it takes too long to dry and it is too thin for the work.

THe only exception I have found is the 2 part water based epoxy coatings, they seem to do ok. I guess I am just old school
 

smallboat

smallboat
Corporate Member
Jeremy- any chance you can share the short form you have already? I'd be interested if you don't mind. Perhaps we could include it here as an article.
 

jfynyson

Jeremy
User
Jeremy- any chance you can share the short form you have already? I'd be interested if you don't mind. Perhaps we could include it here as an article.
I can certainly create a thread with my information. I would like for this to be a quick ready reference for folks as a high level non-exhaustive "article" so I'll post it as text but would prefer to have our experts on this forum to chime in edit it (simplify it, correct anything I may have incorrect but not to make it complicated) prior to creating it as an official "article".

I'll post this after I meet with this gentleman on 1/23/2020 to answer many of the questions I have ready for him.
 

jfynyson

Jeremy
User
I want to give an update here. I met with my contact today and learned a lot. However, his focus of course was primarily the marketing side of the industrial coatings industry rather than what we typically see in the hobbyist market. He will take a look at my page and a half list of rapid fire questions as well as review my high level overview of wood finishing (to make sure I'm not misstating anything) and will be responding in the next few weeks.

Once I get those responses back I'll post them all here. I'd prefer we take a few weeks and get some of our forum professionals & those in the know from many years experience to weigh in to help edit. Then we can create a PDF "article" for the forum.
 

Skymaster

Jack
Senior User
RE water based coatings, I have tried numerous times to use them and all experiences with them have been bad. triple work, poor results, poor covering etc. I am old school also, Lacquer, poly, lacquer based stains work great :}:}:}:}
 

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