How to apply PU foam

using an adapter / using a gun / 2-component system

Using an adapter

1 The substrate must be clean, solid, and free from dust and grease. Align, wedge, and screw-connect the elements as specified in the relevant instructions. Cover adjoining surfaces (e.g. with Ramsauer Abdeckband masking tape). Slight moistening of the substrate is recommended.

2 Shake the can well prior to use (also after interruptions of the work)! The can temperature must be at least + 15 °C, and not exceed + 25 °C. The outside temperature must be at least + 5 °C, and not exceed + 35 °C.

Remove the protective cap, and screw the adapter onto the valve. Hold the can with the valve pointing downward and start applying the foam.

Try to not apply more foam than is necessary! The foam will expand to double or triple the applied volume. The tipping valve is opened – and controlled – by finger pressure against the adapter.

The foam cures through contact with air humidity and ambient humidity. Do not cut or spread the fresh foam, as it will spread automatically and fill the cavities. Once the foam has cured, corrections can be made by means of cutting or sawing.

6 If you do not completely use up the contents of the can, you can close the tube using the special adapter (see drawing).

Using a gun

1 The substrate must be clean, solid, and free from dust and grease. Align, wedge, and screw-connect the elements as specified in the relevant instructions. Cover adjoining surfaces (e.g. with Ramsauer Abdeckband masking tape). Slight moistening of the substrate is recommended.

2 Shake the can well prior to use (also after interruptions of the work)! The can temperature must be at least + 15° C and not exceed + 25° C. The outside temperature must be at least + 5° C and not exceed + 35° C.

3 Remove the protective cap. Screw the container (not too tight!) onto the NBS gun with the valve pointing upward. Then, start applying the foam.

4 After use, leave the can on the NBS gun. Remove the can only once its contents have been used up completely. Use Reiniger 817 to thoroughly remove any escaping foam from the valve and the thread. Subsequently, mount a new can RIGHT AWAY. Otherwise, the NBS gun will clog up. Applying foam by means of a gun makes it easier to apply just the necessary quantities of foam.

5 The foam cures through contact with air humidity and ambient humidity. Do not cut or spread the fresh foam, as it will spread automatically and fill the cavities. Once the foam has cured, corrections can be made by means of cutting or sawing.

6 Always leave a can mounted on the gun! For cleaning the gun, use Ramsauer NBS UNIVERSAL CLEANER 817. Use ample quantities of the cleaner! Rinse the gun well and long. Never remove the can forcefully from the adapter. If NBS guns are no longer functional due to clogging, dismantle and clean them, or use a new gun.

2-component system

1 The substrate must be clean, solid, dry, and free from dust and grease. Align, wedge, and mount the elements as specified in the relevant instructions. Cover adjoining surfaces (e.g. with Ramsauer Abdeckband masking tape). Do NOT moisten the substrate! Ramsauer 2C FIX cures independently of the presence of moisture.

2 The can temperature must be at least + 10 °C, and not exceed + 25 °C. If the temperature rises above + 25 °C, do not activate the can because reaction heat may cause it to burst! Remove the protective cap, screw the adapter onto the can. Turn the activation wing at the can’s bottom through 4 full rotations in the direction indicated by the arrow as far as it will go, in order to activate the cartridge containing the curing agent.

3 Important! Shake the can immediately and briskly at least 20 times with the valve pointing downward – shake it more often at low temperatures – in order to mix the two components. In this process, slight rattling will tell you that the inner receptacle containing the curing agent component has been opened. After shaking, allow the compound to mature for 30 seconds, shake it again briefly and apply it.

4 Hold the can with the valve pointing downward. If the contents have been mixed properly, green foam will be discharged. If necessary, shake the can briskly again. Without adding the curing agent, 2C FIX reacts like one-component PU foam with retarded curing.

5 The development of heat indicates that a reaction is in progress. The can must be emptied within approx. 8 minutes. Always empty the can completely.

6 Do not cut or spread the fresh foam, as it will spread automatically and fill the cavities. Once the foam has cured (approx. 20 mins), corrections can be made by means of cutting or sawing. The foam reaches its full load bearing capacity after approx. 120 mins.