Preservation Technologies presents Bookkeeper HM03 Manual Spray System – a modern solution designed for the safe deacidification of large-surface paper materials. For over 30 years, archivists, librarians, and conservators worldwide have trusted Bookkeeper technology, which effectively neutralises the acids that weaken paper structure.
Bookkeeper HM03 Manual Spray System - Professional manual paper deacidification system.
Bookkeeper programme introduces to the paper structure safe, non-toxic alkaline buffer, which neutralises the harmful acids responsible for the fragility and degradation of materials. To date, thanks to Bookkeeper technology, the following have been safely preserved: over 50 million individual sheets of paper and over 8 million books – using both the mass liming method and spray systems.
Model Surf It has been designed for precise, comfortable, and quiet operation. The device is ideally suited for archives, libraries, and conservation workshops.
Dimensions: 503 mm (Length) × 635 mm (Width) × 1130 mm (Height)
Net weight: 75 kg
Power supply AC 220V / 50Hz or AC 120V / 60Hz
Power 200W
Hydraulic pump operating pressure: ≤ 0.38 MPa
Tank capacity: 5 litres
Controls 10-inch touchscreen
Screen resolution 1920 × 1080
Number of nozzles 1
Intuitive touch interface with functions: start, stop, mixing, liquid recovery, settings, and device status
Monitoring the liquid level and fluid weight
Automatic preparation mixing
Acidifying spray recovery function
Low fluid level alerts
Removable, pressurised 5-litre tank with built-in agitator
High-precision spray gun and nozzle
Quiet operation – no need for an external compressor
Bookkeeper is a preparation non-toxic, non-flammable and safe to use. It contains no CFCs or solvents, does not clog nozzles, is practically odourless, and dries in a few minutes. Refills are also available in canisters. 5.67 kg.
