Spetec Pur F400 [extra Quality] Link

Works excellently with moisture-sensitive PUR – the nitrogen purging option keeps polyols stable. However, highly abrasive fillers (e.g., alumina or silica >40% by weight) cause faster wear on the piston seals; Spetec offers ceramic-lined options as an upgrade.

Seal replacement every 200–300 operating hours (depending on filler abrasion). Parts are modular, so downtime is ~30 minutes. However, replacement kits are priced higher than generic alternatives – a common trade-off for precision systems. spetec pur f400

The touchscreen interface is intuitive for setup, but calibration requires trained personnel. The cleaning cycle is automated but consumes solvent – fine for continuous production but costly for small batches. highly abrasive fillers (e.g.