The tensile shear strengths of the wood substrates that have been bonded with Application Method 4 are presented in Fig. 5. All dried wood substrates bonded with gum dispersions have higher tensile shear strength than 10 MPa and thereby fulfill the D1 criterion according to EN 204 except those that were bonded with xanthan gum dispersion and 11 wt% tamarind gum dispersion. The wood substrates bonded with locust bean gum, guar gum and 6 wt% tamarind gum dispersions as well as locust bean gum dispersed in brown liquor show tensile shear strengths comparable to Cascol and all result in fiber tear.