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Table 1 Composition of the gel formulations

From: Poly(vinylalcohol)-borate hydrogels with improved features for the cleaning of cultural heritage surfaces

PVA %

PEO %

Borax %

Cosolvent %

3

0

0.6

No

30% 2-propanol

30% acetone

3

1

0.6

No

30% 2-propanol

30% acetone

3

2

0.6

No

30% 2-propanol

30% acetone

3

3

0.6

No

30% 2-propanol

30% acetone

2

0

0.4

No

30% acetone