Rokester 240.02 is a polyester polyol. It exists in the form of homogeneous, colourless to pale yellow liquid. It has hydroxyl value within the range of 230-250 mgKOH/g, and dynamic viscosity below 5000 mPas at temp. 25°C.
Rokester 2402.02 is an aromatic, modified PA/DEG polester polyol of “Specialty Industry standard” for production of sandwich panels with PIR core and PUR/PIR in soft lining, using continuous method. It is dedicated to auto-formulations of quick continuous lines. Owing to its unique features it can be used as the only polyol component in PIR (polyisocyanurate) formulation without addition of other polyesters or/and polyethers. It does not contain flame retardants. High ability of the polyol Rokester 2402 to create a stable emulsion with pentane isomers need to be emphasised. This has significant impact on the quality of the cell structure of the core and on aesthetic values.