The MUF adhesive used in VENDIA marine plank
Phenol formaldehyde adhesive is the most commonly used glue in marine plywood. It is water-resistant and commonly used in plywood industry. Originally the phenol formaldehyde adhesive is colourless but effect of air and oxygen convert the phenol into brown. That is why the dark glue seams stand out in plank board joints and edges if wooden boat is made of normal marine plywood.