CRA® 23 is an extremely efficient controlled release additive for adjusting the release force of solvent-based DEHESIVE® systems.
- high release levels
- good release stability
- excellent bath life
Spezifische Merkmale von CRA® 23
CRA® 23 can be processed together with nearly all solvent-based DEHESIVE® products. It is miscible with them in all proportions.
Mixtures of CRA® 23 and DEHESIVE® are ideal for the production of release paper and PSA-laminates. Suitable substrates include PE-laminated paper, polyester films (PET) and papers.
Because of the high efficiency and stable release characteristics of CRA® 23 , the product is ideal for the production of double-sided release liners.
Batches of coating compound must be prepared in the
order given below.
1. First pour in solvent-based DEHESIVE® polymer
2. Add solvent and stir slowly until the mixture is homogeneous
3. Add CRA® 23 release modifier and stir slowly until the mixture is homogeneous
4. Thoroughly stir in Crosslinker to this mixture
5. Slowly stir in catalyst.
Local over-concentrations must be avoided.
To obtain exceptionally high release forces, CRA® 23 can also be processed without DEHESIVE®. In this case, the amounts of catalyst and crosslinker required for efficient curing may vary from DEHESIVE® containing formulations. However, we recommend the adjustment of specific formulations to optimize final coating properties for the intended use.