CRYOGENIC PICKLING ON WOODEN SHUTTER

How does it work?

As soon as dry ice has the impact on the pollution to be treated, it cracks and peels off the support: soft wood shutter.

Three phenomena then take place:

• The impact generates a mechanical action (cracking of pollution),
• The intense cold of the ice retracts the pollution thermal action,
• Finally, dry ice passes from the solid state to the gaseous state and takes 700 times its volume, blowing pollution: this is sublimation.

Advantages of cryogenic pickling on wooden shutters

The advantages of cryogenic pickling on wooden shutters

are multiple:

– the removal of pollution does not require solvents or strippers,

– No need for a thermal stripper or spatula either,

– The work is fast and does not generate excessive dust

For a quality finish, you can complete the stripping operation using sandpaper sanding.

Finally, if the wood is likely to be marked or have a brushed effect, you can consider the use of

cryogenic scrub

or the use of dry ice mixed with abrasive for a more powerful stripping: rust, rim stripping … You will be able to use bicarbonate for the stripping of graffiti, to strip the lacquer. The aggregate used will depend on the type of pollution of the surface to be stripped: paints, oxidation… on wooden furniture, metal surfaces…

Comparable to the sandblasting technique, cryogenic scrubbing is as precise and gentle as manual sandpaper stripping…

Equipment used

ATX25-E: Electropneumatic cryogenic cleaner