Door frame installation_Anagha Engineers

PU Foam – Install Door Frames In Just 17 minutes!

Door Frame Fixing_Anagha Engineers

What does PU Foam offer that putty can't?

The cause of separation and crack formation between the masonry walls and door frame joints occur due to the different co-efficient of thermal expansion of wood and masonry wall i.e., brick/ block masonry. A gap occurs between them as expansion and contraction of both is different during change in temperature, which we identify as cracks. In tropical countries like India, the difference in maximum and minimum temperature during the day & night is normally 200 C. Cracks are normally visible in half brick wall (115 mm) and not in 230 mm thick brick wall as in partition wall, they flush with the wooden frame.

  • Mortar Joint between masonry walls and door frame is not filled up properly and hence a gap remains as it is. This ultimately appears as separation cracks.
  • Due to shrinkage, cracks also appear at joints. The expansion and contraction occurs because, when the quality of the wood is not good. Generally wood has a tendency to change volume due to change in moisture content.
  • The decay of wooden door frame due to the chemical reaction. It also develops cracks at joints.
  • In rainy season, wooden door frames or shutters absorb the moisture from air and swell, and the doors refuse to shut properly. Hence force is required for operating of the door. Such force slowly leads to the development of separation cracks at joints.
  • Due to the heavy wind sometimes, the door shutter forcefully strikes the frame, and due to the impact of such forceful strikes, the cracks develop at joints.
  • Due to poor workmanship during the time of frame fixing in brickwork, if holdfasts are not embedded properly in the masonry wall, it will lead in separation cracks in long term.
  • Construction of full height masonry wall in a day time also results in Crack between masonry wall and door frame joints.
  • False construction practice also develops cracks. i.e. constructing a wall more than 1m a day.You need to always adhere to the rule of not constructing wall more than 1m a day

Things to take care of before application

  • Before starting to apply the PU Foam, make sure that the door dimensions match the opening in the walls. 
  • It is recommended to leave approximately 2 cm gap between the door and the wall opening.
  • Do make sure to check that the corners of the door opening are at 90 degrees and are aligned perpendicular to the floor.

Now you can proceed to install the door frame using Anagha PU Foam.

The Materials Required

  • Anagha AE 100 PU Foam
  • Water spray can
  • Anagha Masking tapes
  • Brush 
  • Cutter
  • Spacers (optional)
  • PU Foam Gun Applicator and Cleaner (if you are using the Gun Grade version)

Installation Procedure

  • Clean the surface thoroughly, i.e., make the walls on either side dust free with the help of brush.
  • Align the door frame in the civil frame with at least 2 cm joint width.
  • Apply Anagha Masking Tapes to mask the polished or painted surface.
  • Moisten the surface on either side by sprinkling water through spray can for better yield and adhesion.
  • Shake  Anagha AE-100 PUF can for at least 20 seconds.
  • Hold the Straw firmly and apply the PUF between Frame & wall.
  • After an hour cut away the excess hardened foam.
  • After three hours apply plaster, mortar or similar and fix the frame and door.

Here's a simple video to see how easy it is to use Anagha PU Foam


  • Apply thin strands.
  • Shake can regularly in intervals.
  • Fill Anagha AE-100 PUF in the joints of about 2/3 size.
  • Product can be painted over and sanded as per the requirements
  • Gun Grade is a recommended for more precise application, more yield and less wastage.

Areas of Application

Filling of joints, seams and cracks in:

  •  Partition walls with ceilings.
  • Structural space between window- and door frames and walls.
  • Structural and fitting space between prefabricated construction elements.
  • Around cables and pipes, penetrations through walls and ceilings.
  • Gluing panels/ insulating sheets.

Industries That Need This Product

  • Construction: Fitting Door frames , window frame gaps, sealing tie rod holes/joints , gap between bricks and  beam, bonding AAC blocks.
  • Power plants: sealing gap between cable and wires , gap between electric panel outlet.
  • Solar Plants:  sealing gap between cable and wires.
  • Interiors: Gap filling.
  • Terrace: heat insulation.
  • Cold Storage/ Wooden houses: gap filling


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