BumpyJack68 I don't know the names of the different typs of foam.
It is closed cell polyethylene foam. Different weights have different firmness.
https://www.foambymail.com/polyethylene-foam.html
Some craft stores and sewing fabric stores have for making seat cushions and such.
Good Luck, Ed
If you have a table saw you can make all the strips you want out of extruded foam.
Good luck,
Richard
Home Depot has something that you may want to try and adopt - cut into strips..
https://www.homedepot.com/p/Frost-King-1-1-4-in-x-1-1-4-in-x-42-in-Grey-Air-Conditioner-Weatherseal-AC42H/100059869?source=shoppingads&locale=en-US&pla&mtc=SHOPPING-BF-ARM-GGL-Multi-Multi-NA-NA-NA-PLALIA-NA-RBA-NA-NA-NBR-NA-NA-NA-ALL_IN_TEST_SIMPSEEK&cm_mmc=SHOPPING-BF-ARM-GGL-Multi-Multi-NA-NA-NA-PLALIA-NA-RBA-NA-NA-NBR-NA-NA-NA-ALL_IN_TEST_SIMPSEEK-71700000109986253-58700008375337160-92700076237673149&gad_source=1&gclid=Cj0KCQiAr8eqBhD3ARIsAIe-buMY_wvDITXJYhH_UMYEM-Dp6Fu4f6U2lGkPppuN65BOMgUD7yI-SBAaAvlDEALw_wcB&gclsrc=aw.ds
Amazon carries it as well..
https://www.amazon.com/Frost-AC42H-Conditioner-Weatherseal-42-Inch/dp/B000117C40/ref=sr_1_5?crid=10WQ72C0U5281&keywords=Frost+King+weathering+strips&qid=1699879683&sprefix=frost+king+weathering+strips%2Caps%2C119&sr=8-5
Neal
I seem to remember reading long ago that the foam strips can be replicated with material from a furniture upholstery shop.
As for the thin plastic material, the thin rolled plastic wrap that can be found in the moving section at a certain big box store seems to be a good replacement IMHO.
Foam inserts for Athearn Blue Box freight cars. Grayish black 1" x 3/4" foam strips, I don't know how to look this up? I don't know the names of the different typs of foam. Also does anyone what the soft, transparent, thin, flexible material is called that is rapped around Locos & high class rolling stock? Thanks