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Aviation Products // Line Maintenance & Exterior Cleaning

Unblock
Pipe and Tank Cleaner
  • Ready to use - fast acting formulation
  • Descales quickly and safely
  • Clings to vertical surfaces
  • Water-based and non-flammable
  • Conforms to AMS 1640C

Description

During normal daily use aircraft, toilets carry solid and liquid wastes that form limescale, calcium and other deposits throughout the system. Callington Unblock has been specially designed to deal with these build-ups and help maintain a fully functioning toilet system. Regular cleaning with Unblock ensures toilets fully operational during flight and helps control odours over long term.

Application

Callington Unblock is suitable for both vacuum and re-circulating toilets. It is powerful enough for deep soaks during engineering checks and can also be used diluted in a regular cleaning cycle.

Directions for Use

For vacuum toilets – general maintenance: Add Unblock neat for dilution with clean water from the flushing system.

  1. Fill the bowl with crushed ice.
  2. Then pour 2 litres of Unblock down each toilet.
  3. Flush the toilet several times.
  4. Complete this procedure for all toilets on the aircraft.
  5. Allow the cleaning solution to remain in the system for 10-15 minutes.
  6. Rinse with water once complete. Empty the waste tank again before returning the toilet to service in order to maintain capacity and minimize weight. DANGER: Causes severe skin burns and eye damage

 

Re-circulating toilets general maintenance:

  1. Make sure that each toilet unit has been emptied.
  2. Start the process at the most forward lavatory by putting 2 litres of Unblock down each toilet.
  3. Flush the toilet twice.
  4. Complete this procedure for all toilets on both sides of the aircraft.
  5. Flush the toilet 3 –4 times in the first hour to re-circulate Unblock through the toilet unit. Continue to flush at hourly intervals).
  6. Allow cleaning solution to remain in the system for 10-15 minutes.
  7. Empty the waste tank again before returning the toilet to service in order to maintain capacity and minimize weight. DANGER: Causes severe skin burns and eye damage.

Approvals

• AMS 1640C

Physical Properties

Appearance:               Slightly viscous light link liquid      

Density at 20°C:          1.0 +/- 0.1       

pH:                              2.2 +/- 1                      

Odour:                         Slightly piquant

Ordering Info

Product CodePackaging
5123/33 2L
5123/51 20L
5123/64 200L