These polypropylene caps with Foam/PE liner are acid resistant. This F422 liner is comprised of a .38" LDPE core sandwiched between identical layers of .002" - .003" virgin HDPE.
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Product
Description
Unit [Price]
CAP-06462
38-430 White Ribbed Polypropylene Cap with F422 HDPE Foam Liner
CAP-00379
38-439 White Ribbed Polypropylene Cap with F422 HDPE Foam Liner
CAP-06482
38-439 White Ribbed Polypropylene Cap with F422 HDPE Foam Liner, Packed in bags of 12