Class B
Visible seal with lower requirements for the finish.
The material should be liberally but evenly applied.
Lines and minor pitting is acceptable.
The sealant must not have been applied too thickly.
The dimension of the bead must be as in panel section B.
B1 = minimum 0.5 mm, maximum 2.0 mm.
B2 = minimum 4.0 mm, maximum 10.0 mm.
B3 = minimum 2.0 mm.
B4 = minimum 2.0 mm, maximum 4.0 mm.