If you are asking me that question then yes load liners are not fitted as such , they just sit on the floor so can be taken out at any time , they are vehicle specific , they may not even do one for your van .
Mine is actually from a Mazda estate car and it fits bang on between my inner arches of the Fiat fiorino , and the best bit was i found it propped against a wheelie bin , one mans rubbish is another mans treasure

The fibreglass is pretty much going to be there for good once cured off .
Rich