Hysol SL 35 XBBHysol SL 35 XBB and Alusol SL 51 XBB provide tangible benefits without the associated compromises, claims Castrol. The company says this new cutting fluid technology maintains constant pH levels (9-9.5) and stable conditions for longer than standard cutting fluids and that this reduces the need to add treatment additives and biocides.

These products do not rely on the use of boron or formaldehyde releasing agents or additional biocide and fungicide additive packs, but are still able to meet the service life expectations, says Castrol. Hysol SL 35 XBB is intended for use for use with ferrous alloys, while Alusol SL 51 XBB is claimed to improve precision performance in aluminium machining.