It was sheets of fiberglass that you bent into shape, and then peeled backing off of, or put vacuum to the bag of to make the pre-soaked resin cure. Used for large, flat, in place panels. It was hot rod, car craft, or grm article sometime between 1995 and last year.
I may be having an acid flashback, but it seems way too boring for one.
We used a fiberglass and honeycomb product with scoring on one face that allows bending. I can find out the manufacturer info next week.
Google prepreg fiberglass. May be what you are looking for
Prepreg fiberglass is a composite material made of fiberglass and a partially cured resin. It's used in construction and as a protective layer for other components.
I recall seeing a product like that but it also had a stainless steel mesh like wire cloth embedded in it. About 1cmx1cm squares. That mesh allowed you to bend the product in to a shape and have it maintain that shape while the resin cured. It was very cool.
Prepreg usually takes an oven to cure. I've never seen one that did it in-place.
I guess if it were kept anaerobic and peeling the sheet allowed it to catalyze with air?
Maybe UV curing resin?
I've seen water cured prepreg. That was neat stuff
Yeah! It was a prepreg with something in it to keep shape while it cured. I dont remember if it was air, vacuum or uv cure.
The article had them making ducting and enclosures.
I want to use it for a complex shape on the rear cab wall of a truck for a fiberglass sub box. Dont want to mix resin and mat in there.....
You might change your plan after you see the prices and quantities available. I played around with Sunrez resins years ago but it was too expensive to ship the quantities I needed.
https://www.fibreglast.com/products/sunrez-uv-vinyl-ester-prepreg-fabric
Here's a fiberglass patch kit that has the mesh already impregnated with resin, oddly enough you wet it with water to get it to set up. https://www.amazon.com/J-B-Weld-FiberWeld-Automoitve-Repair/dp/B09BBGS7CN?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&psc=1&smid=ATVPDKIKX0DER&gQT=1
Here's another one that sets up from the sun's UV rays. https://www.kbs-coatings.com/kbs-patch?srsltid=AfmBOoraw-hv5a_EujiaWoJR-xPl4aEKk60CwSEZ4S66PgxTeiP2uD-I
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