Good day,
Unfortunately, we have one client for food grade only. It prefer HEVEAFIL, in spite of difficult of work with HEVEAFIL. Once client took Rubberflex and didn't`t like for this latex. Rubber is worse than HEVE.
But H.V.Fila sample was worse than Rubber. As I understood by explanation of client, mail reason is tension. Go study its and send better saple again