PVB WW-A-70 by Anhui Wanwei Group is a polyvinyl butyral (PVB) grade. It is made from polyvinyl alcohol and butyl aldehyde with hydrochloric acid as catalyst. Offers high transparency, good cold resistance, water resistance, film forming properties and impact resistance. Available as white or slightly yellow powder with no visible impurity. PVB WW-A-70 by Anhui Wanwei Group is recommended for transparent material (safety glass interlayer), paint (copper-clad plate, ink, lacquer), cementing compound (glass adhesive, metal bond, enameled wire bonding, hot seal bond, mark copy printing bond) and stamp.
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PVB WW-A-70 properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
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Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Hydrogen Chloride Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Polyvinyl butyral Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Viscocity (-1 viscometer method) | 0.0 Visible After Login | Visible After Login | Visible After Login |