Arctic Hayes CI/400 1 x 400 ml Crack-It Shock Freeze Release Spray, Bio-Degradable, Fast-Action Lubricant, Breaks Apart Corroded Parts in Minutes (400ml), White

I bought this to help while working on an older car and trying to undo rusted bolts and nuts. This was a great tool and combined with a blow torch to heat the nuts then a blast of this spray to cool it to break the rust and lubricate this. It worked very well and certainly worked for me. It is better value here than other stores. Will buy again.

As some may know, Campagnolo Power Torque carbon cranksets are notoriously impossible to remove using the designed-for-purpose tool. Filling the hollow crank with cotton wool and freezing it with the spray meant knocking the chain set out from the non-drive side was surprisingly easy.This stuff works.

used this along with a heat gun and plusgas to try and remove a bottom bracket from a bike. didn't feel like this made any difference at all

Worked slightly

Doesn’t freeze anything, ice is colder. A total con, avoid.

Had tried several ways to undo a large flywheel nut on a 14HP Briggs & Stratton mower engine. Would not budge. Then applied Crackit per instructions. Then reapplied socket with long extension and hit it with hammer as before but this time it suddenly gave way after which the nut came off easily . This is not the first time I have used this product. I have also used it successfullt in the past to remove a recalcitrant gear box pulley.

Does not drop the temperature at all, no freezing effect. No more cold than WD40 when it comes out of the can!

Used with blow torch to heat and cool rusted solid brake bleed screw- after 2 heat / cool steps unscrewed out of caliper with ease. Fabulous cooling spray for this type of work. Highly recommended.