PENGABUH BERAT LABUR DAN KADAR PENGISI PEREKAT TANIN FORMALDEHIDA TERHADAP KETEGUHAN BEKAT LAPIS

adi santoso (Pusat Penelitian dan Pengembangan Hasil Hutan)
rodjak memed (Pusat Penelitian dan Pengembangan Hasil Hutan)
Paribotro sutigno (Pusat Penelitian dan Pengembangan Hasil Hutan)

Jurnal Penelitian Hasil Hutan
Vol 9, No 3 (1991): Jurnal Penelitian Hasil Hutan

It has been known that  tannin formaldehyde  resin  is suitable for exterior plywood  adhesive. one   of the source of tannin is Acacia decurrens bark. A study on using tannin formaldehyde from.  Acacia  decurrens   bark has been done  to predict  the effect of  glue spread  and percentage of filler on the plywood   bonding strength. The results show that glue spread has not sigatficant effect on plywood  bonding strength, while percentage of  filler  has significant effect on plywood  bonding strength and all plywood resulted meet German  Standard requirement for  exterior purpose. (AW 100).From  the economic paint of view,  it is recommended. to use glue spread of 150 g/m2 and percentage of filler of 4o%.