UPM Raflatac Technical Information
28.12.2011 ENG 110
RC7W (sales code)
Temperature-sensitive, clear acrylic adhesive for wash-off film labels in PET bottle-to-bottle recycling.
Clear and white filmic wash-off labels for PET beverage bottles destined for the PET recycling process. The labels can be washed off in hot caustic and separated from ground-up PET bottles by gravity, leaving available pure, food-grade polyester suitable for bottle-to-bottle use. The non-bleeding adhesive provides excellent performance in high-speed dispensing and resistance to water-whitening once labelled.
Typical technical values
Labelling temperature min
Service temperature min
Service temperature max
For optimal wash-off performance, the washing caustic should be > 80 °C and the NaOH concentration > 1.5%. The wash-off properties may be reduced if labels are stored in high temperatures or under UV exposure (such as outdoor conditions) for long periods of time. Adhesion to moist surfaces needs to be tested beforehand.
The performance of the printed label should always be tested in the actual application conditions.
Rafwash Clear TC 50, Rafwash White TC 60 and Rafwash Clear IL 60 with the RC 7W Rafwash adhesive have been approved for PET bottle-to-bottle recycling by Cleanaway PET International GmbH. The research centre ISEGA has given the adhesive approval for direct contact with dry and moist and such kind of fatty foodstuffs which have a reduction factor of at least 2.
From the date of manufacture: 1 year in +20°C and RH 50%
Our recommendations are based on our most current knowledge and experience. As our products are used in conditions beyond our control, we cannot assume any liability for damage caused through their use. This publication replaces all previous versions. All information is subject to change without notice.
Download printable version: RC 7W