MayhemsPC Coolant - XT-1 Premix - Thermal Performance Series, UV Fluorescent, 1 Litre, Plasma Jet Purple

Does what it says on the bottle!

I have 2 radiators 480 outside and 520 on inside plus 4 meters of tubes (I am only testing custom loop, I will cut tubes and staff to spec after) and I needed 1,3 Liters approximately. So 1 Liter will fill any loop with single rad or 2 360.

The media could not be loaded.  Looks good and effective in my very first build by my self good out come I made a good choice with the coolant

I've been using Mayhems for years, up until now using the H20 product with a little bit of biocide. This premix takes the need to add your own biocide out but has a weird sticky residue when handling and smells strange! I'll be going back to the Ultra Pure H2O after this one I think.

This stuff is great but they shipped it via hermes so I never actually received it

I'd recommend it, just don't drink it... It's for your pc

Niche product but if you need to clean your custom loop there's no better option.

It does clear a radiator better than any home made solutions I've ever used. Mayhems deserves plaudits & a good return for all the R&D time spent finding which chemicals are best for such a product.. But part of me wishes that I'd just read the data sheet (downloadable from Mayhems website) beforehand. The active ingredients are just cheap and common cleaning chemicals. Part 1 is just a solution of phosphoric acid (solution strengths also in datasheet) and Part 2 is a solution of Benzalkonium Chloride, otherwise known as alkyldimethylbenzyl ammonium chloride (bit of a mouthful eh). Naturally I'd caution anyone that may struggle with calculating the correct final solutions. I'd also stipulate the imperativeness of safety & having access to the correct PPE.. But having made those obvious stipulations, anyone capable of a bit of common sense could buy and concoct a lifetimes supply of these chemical solutions, (even here on Amazon) for around the same price as single use Mayhems kit. The margins on this kit must be making someone very happy indeed.