Installing interior doors with PU foam

Interior doors are mounted with PU foam to avoid unsightly screws in the door frame. The right assembly foam for the interior door should be extremely strong so that it can withstand everyday bumps and jolts for many years.

This is where the harder 2C PU foams come into their own. Sealing is less important in living areas. Here, only 20 to 30 percent of the upright frame surface needs to be adhered. To attach interior doors it is sufficient to apply the assembly foam at six to eight points.