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It's Just String & Glue. This is a newsletter about composites, the strings, the glues, and the business.


A Bit of Sustainability News and Some Other Stuff
#composites, #sustainability, #rotorsails, #environmentalproductdeclaration, #recycling There has been a bit going on since my last post in 2025, so I thought this week I would catch everyone up with the sustainability initiatives across not only the composites industry itself, but in industries and sectors of the economy that are making heavy use and initial use of composites. Anemoi Rotor Sails on Union Maritime Chemical Tankers – CW 12/26/2025 First I want to talk a bit ab
6 days ago8 min read


This Week’s News about Recycling and End-of-Life Composites
#composites, #sustainability, #recycling, #end_of_life_composites, #thermolysis This week I’m going to make my newsletter just a bit shorter than what I did last week with all of the pictures of sailboats that use recycled or natural fibers for primary structure. There are a couple of fairly newsworthy things that have happened just in the last few weeks that I want to focus on this week. And I want to also let everyone know that I am going to take a couple of weeks off wri
Dec 3, 20256 min read


Now For the State of the Art in Carbon Fiber Recycling
#composites, #sustainability, #recycling, #carbonfiber, #thermolysis, #solvolysis Last week I went through the state of the art in wind turbine blade recycling, which could alternatively have been titled “state of the art in glass fiber recycling” because most of the wind turbine blades that have come to the end of their useful life or are nearing their demise are primarily made of glass fiber composites. In some of the larger blades, there is a carbon fiber spar cap that I
Oct 29, 20258 min read


What is the State of the Art in Wind Turbine Blade Recycling
#composites, #recycling, #windenergy, #thermolysis, #solvolysis, #pyrolysis, #sustainability I have talked about this repeatedly by giving examples of companies and organizations, some largely funded and supported by governments, in previous posts. This week, I thought I would provide a summary of what I see as the State of the Art in recycling wind turbine blades here in the US and in the EU and UK. A lot has happened in the last couple of years, and some companies are not
Oct 22, 20259 min read


Update on REFRESH Project – New LCA Study on Wind Turbine Blades
#composites, #sustainability, #windenergy, #recycling, #renewableenergy A few weeks back I wrote a couple of articles, one about this project (REFRESH) and another about a company in Norway (Gjenkraft) that has gotten seed money to build a plant to recycle wind turbine blades using their pyrolysis process. And of course the day after I wrote the article the REFRESH project posted the results of a Life Cycle Assessment (LCA) that they had performed by a consulting company in
Oct 15, 20256 min read


Revisiting an ICCM Paper – Continuous Carbon Fiber Recycling at NCCUK
#composites, #sustainability, #carbonfiber, #recycling, #fibers, #resins I mentioned this work in my post just after the ICCM conference...
Oct 8, 20255 min read


Investors are Interested and Taking Notice of the Recycled Composites Business
#composites, #sustainability, #recycling, #recycledfiber, #recycledresin I have talked in this space about composites sustainability,...
Sep 30, 20256 min read


Recycled Carbon Fiber Use in the Clean and Renewable Energy Business
#composites, #sustainability, #recycling, #carbonfiber, #renewableenergy I saw an announcement in Composites World that was repeated in...
Sep 24, 20257 min read


A New Entrant in the Recycled Carbon Fiber Scrap Business – Thermoplastic 3D Printing
#composites, #sustainability, #recycling, #carbonfiber, #thermoplastics, #recycledfiber There seem to be more new entrants into the use...
Aug 5, 20257 min read


Some Encouraging News in Carbon Fiber Composites Recycling – and a Few Other Things
#composites, #sustainability, #recycling, #aceticacid, #NREL, #fibers, #resins I saw something really interesting that was just reported...
Jul 23, 20258 min read


Composites Recycling in France Goes Full AI
#composites, #sustainability, #AI, #recycling, #carbonfiber I saw a very interesting news article this week about Fairmat, a French...
Jul 8, 20257 min read


A New Kid on the Block and Some Other News in Recycled and Plant-Based Composites
#composites, #sustainability, #recycling, #windenergy, #fibers, #resins This week is going to be another hodgepodge of news about...
Jun 25, 20255 min read


Some Recycling Updates for the Composites Industry – Wind Turbine Blades
#composites, #sustainability, #recycling, #fibers, #resins, #windenergy This week I thought I would give everyone some updates in the...
Jun 17, 20255 min read


New Process(es) for Continuous Recycling of Glass Fiber Composites
#composites, #sustainability, #recycling, #glassfiber, #reclaimedfiber, #reclaimedresin I have talked quite a bit in this newsletter...
May 12, 20256 min read


An Update on Carbon Fiber Recycling – Continuous Fibers No Less
#composites, #sustainability, #recycling, #recycledfiber, #carbonfiber I have talked about how difficult it is to recycle composites –...
Apr 28, 20257 min read


Hodgepodge of Recycled and Renewable Composites Applications
#composites, #sustainability, #recycling, #recycledfiber, #plantbased, #biocomposite This week is going to be sort of a hodgepodge of...
Apr 21, 20257 min read


Some Good News on the Recycling Front and Other Updates
#composites, #sustainability, #recycling, #fibers, #resins I heard about this a few days before it was announced at JEC World in Paris. ...
Mar 17, 20257 min read


A Bit Deeper Dive into Recycled Material Certifications
#composites, #recycling, #certification, #sustainability, #recycledfiber, #recycledresins I really was not able to cover the entire...
Jan 20, 20255 min read


How Do We Tell if Reclaimed Composite Materials are Good Enough
#composites, #sustainability, #certification, #recycledfiber, #recycledresin, #recycling, #reclaimedfiber, #reclaimedresin I’ve seen some...
Jan 13, 20255 min read


What to do With Old Wind Turbine Blades? You Might be Surprised
#composites, #sustainability, #recycling, #reuse, #architecture, #furniture I saw an interesting article in Composites World this week...
Nov 18, 20249 min read

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