Some time ago there was a post on one of the diaper sewing lists about Lastin in diapers disintegrating. The diapers weren't really subjected to anything out of the ordinary, unless you want to count Borax and getting a squirt of Bac Out.
It's been a while, but I didn't have and Lastin on hand to test anything that crossed my mind. Now that I have some, I decided to soak a scrap of Lastin in Bac Out to see if the citrus oils might have an impact on the Lastin like I've seen happen (with other citrus products) on certain plastics. Well, I haven't been scientific with my testing (don't ask me how many days the Lastin has been soaking in a closed container other than it's been well over a week), but the Lastin doesn't seem to be showing any damage from the Bac Out. I've pulled the Lastin out and stretched it out a few times, but there doesn't seem to be any change in how it stretches nor do I see any weak spots. Not conclusive, but a really good sign.
This makes me feel a bit better about switching over to Lastin after having loads of fun picking out shot elastic from one of my daughter's diapers. Most of my diapers were made with bulk poly knit elastic from Jo Ann's, but this one was made with cotton woven swimwear elastic. I think the way the cotton aged caused the damage to the elastic strands. Just a guess, but it's not something that I care to repeat.
