Regular Postcard Backings. 3-1/2 x 5-5/8". 0.028" thick acid-free board. White both sides. Long-term storage.
Regular Postcard Backings
3-1/2 x 5-5/8"
0.028" thick, acid-free board.
White both sides. Long-term storage.
Use with: SPCR2, SPCR4, SPPPCR poly sleeves.
This board is made from recycled fibers that have had the acid removed or neutralized at the time of manufacturing. It is our most popular board. The .028" thick, acid-free, semi-rigid backing board is an excellent choice for protecting prints, posters or photos. This board is intended for long-term display or storage as it will absorb and neutralize migrating acids that can contribute to the degradation of paper over time. 
Material: Paperboard
Thickness: .028"
Color: White/Tan/White
Width: 3.5
Height: 5.625
PH Level: 7.0
Acid-Free: Yes
Lignin-Free: No
Buffered: No
Storage Length: Long-Term Storage (10-50+ years)
Made In USA: Yes
Recyclable: Yes, click here for more info