Postcard Backings

Postcard Backings come in three grades of board:

Economy: 0.030" thick, pH neutral chipboard, white one side. Short-term storage.
Standard Acid-free: 0.028" thick, acid-free cardboard, white two sides. Long-term storage.
Super-Archival: 0.040" thick, 100% Alpha Cellulose board, all-white, acid-free, Lignin-free (alkaline pH 8.5). Conservation grade. Indefinite storage.

Backings for Regular Sized Postcards.
Regular Postcard Backings.
3-1/2 x 5-5/8".
0.030" thick chipboard.
White on one side.
Short-term storage.

Base SKU:kcb30pcr

Acid-free Postcard Backings
Regular Postcard Backings.
3-1/2 x 5-5/8".
0.028" thick acid-free board.
White both sides.
Long-term storage.

Base SKU:kaf28pcr

Museum Grade Postcard Backings
Regular Postcard Backings.
3-1/2 x 5-5/8".
0.040" thick acid-free, lignin-free, buffered board.
All white. Indefinite storage.

Base SKU:kaf40pcr

Archival Postcard Backings
Regular Postcard Backings.
3-1/2 x 5-1/2".
0.040" thick. Acid-free, lignin-free, buffered board.
All white. Indefinite storage.

Base SKU:kaf4035

Postcard Backings
Large Postcard Backings.
4-3/8 x 6-1/4".
0.030" thick chipboard.
White on one side.
Short-term storage.

Base SKU:kcb30pcl

Large Postcard Backings
Large Postcard Backings.
4-3/8 x 6-1/4".
0.028" thick acid-free board.
White both sides.
Long-term storage.

Base SKU:kaf28pcl

MUSEUM GRADE Large Postcard Backings
Large Postcard Backings.
4-3/8 x 6-1/4".
0.040" thick. Acid-free, lignin-free, buffered board.
All white. Indefinite storage.

Base SKU:kaf40pcl

Museum Grade Postcard Backings
Large Postcard Backings.
4 x 6".
0.040" thick, acid-free, lignin-free, buffered board.
All white. Indefinite storage.

Base SKU:kaf4046

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