Bendywood® should always be bent around a mould. Start bending from one end towards the other and fix the bent part with clamps, tension belts, etc. onto the mould. Then you should wait until the bent form has stabilized, best by drying it to 8% final moisture content. Pictures of moulds can be seen on our website under the rubric "Bending moulds for Bendywood®".
When loosening the bent part from the mould, the curve will slightly open up. Also see on our website under "Spring-back after being taken from the mould".
At a moisture content of about 12% Bendywood® can be bent:
- up to a radius of 1 : 10 if not jointed in length (e.g. a 10 mm thick section up to a radius of 100 mm)
- up to a radius of 1 : 20 if jointed in length (e.g. a 10 mm thick section up to a radius of 200 mm)
The dryer the Bendywood®, the more dimensionally stable it is.
Humidify dry Bendywood® when you need to bend it to a tight radius.
Bending radii up to a radius of 1 : 30 can also be reached when the wood is dry. In this case, however, the "spring-back" will be greater (also see "Spring-back after being taken from the mould").
Should you be in need of raising the moisture content, the Bendywood® should be placed between two layers of moist cardboard. A few spacers should be positioned above and below the wood in order to avoid direct contact with the cardboards. Finally, the whole lot should be covered with a plastic foil and left at rest for 1 - 2 days and nights: in this way the moisture content is raised to about 12%, the ideal humidity for bending.
Using this technique (referred to as "Sandwich Method") the Bendywood® absorbs humidity form the air without getting wet.
BENDYWOOD® MUST NOT BE PLUNGED INTO WATER OR COME IN DIRECT CONTACT WITH WET MATERIAL.
The ingress of water will make the wood swell and – in case of jointed parts – it can cause the glued joints to open up.