An environmentally-friendly preparation of #plant material from pine could serve as a substitute for petroleum-based #chemicals in #polyurethane foams.
#Biotechnology #Biochemistry #MaterialScience #sflorg
https://www.sflorg.com/2025/01/btech01282501.html

Dress Up Your 3D Prints with Toner-Transfer Labels - We’ve always found the various methods for adding text and graphics to 3D prints s... - https://hackaday.com/2025/01/02/dress-up-your-3d-prints-with-toner-transfer-labels/ #3dprinterhacks #laserprinter #polyurethane #graphics #transfer #acrylic #label #laser #toner

Hi. I thought I'd #askfedi if there's a way to tell a water-based polyurethane from an oil-based one when you don't have the product label anymore? Maybe by smell?

Am asking so I know how to clean up afterwards. I got some of it from the office maintenance guy and he gave it to me in a plain glass jar. I also didn't know there was a difference at the time.
#polyurethane #varnish #topcoat

Custom Polyurethane Belts Made Easy - If you need to make polyurethane belts in custom lengths, it’s not too hard. You j... - https://hackaday.com/2024/05/15/custom-polyurethane-belts-made-easy/ #3dprintedparts #polyurethane #beltdrive #parts #belts #jig

Sandpaper Alternatives for 3D Prints - A finished 3D print, especially plastic deposition types, often have imperfections... - https://hackaday.com/2024/01/04/sandpaper-alternatives-for-3d-prints/ #3dprinterhacks #polyurethane #spraypaint #3dprinter #sandpaper #3dgloop #solvent #finish #epoxy #print

Myles and his team studied eczema "hot spots" around the country and found that #diisocyanates and #isocyanates were the most prevalent chemicals in the environment. These chemicals are used in #polyurethane products, such as adhesives, flexible foams, carpeting and fabrics.

What causes #eczema could be in the air we breathe, new science suggests | #Allergies #Health
https://www.nbcnews.com/health/health-news/causes-eczema-air-breathe-new-science-suggests-rcna76427