In all the information I have read about storage of stamps on various substances, the only problem I can remember reading is concerning rubber on EZMount. Never attach EZMount stamps to any plastic containing or composed of acetate. That includes acetate sheets, some page protectors, and some CD cases.
I have never heard of any difficulties with CLEAR POLYMER stamps on any substance. They are packaged on acetate. Some companies provide CD cases for their storage. The SU stamp cases are not acetate (couldn't be, or we couldn't put our rubber on cling mount in them) and there should be no problem at all storing them there.
__________________ Diane
On SCS since 2005...Fan Club since 2007
Quiltzi...High Plains Member of Punchkateerz I'll stand with arms high and heart abandoned,
in awe of the One who gave it all.
I'll stand, my soul, Lord, to You surrendered,
all I am is Yours.
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