[gtz101]

I brought one from maplins, i used it today but notice it sprays out repellant (or fluid) when spraying, in motherboard etc to clean dirt etc, would this cause damage to my PC? The can is also very cold.

[Me__2001]

it only sprays propellant out if you hold the can upside down

i wouldnt recommnend using them whilst the PC is on in anycase, but the propellant evaporates off in a few seconds so nothing to worry about

[gtz101]

i do switch pc off and then spray it but i do hold the can upright and it still sprays out repellant so is this ok? it wont damage components?

[floppybootstomp]

As long as the machine is disconnected from the mains, probably not.

But I don't like them compressed air cans myself, I consider them a waste of money.

All you be doing is redistributing them dust bunnies, admittedly somewhere else than your PC.

I use a clean 1" (25mm) paintbrush and a vacum cleaner with flat nozzle attached.

In fact, the 'paintbrush' is a dedicated cleaning brush from RS components but a paintbrush will do.

[gtz101]

i sometimes also use those anti static brushes as well but it doesnt clean everything out in pc

[Electronics & Photo Fan]

When you use the can it will get cold, this is to do with the way it works. (It's the same way a fridge works, compressed substance forced through small hole makes one side warm (the air outside the can) and one side very cold... (inside the can) it's to do with energy transfer.

If the can is nearly empty, all you will get is propellant coming out. And it's not nice stuff, IMO it stinks and I would recommend not being inside a house if you are still hell-bent on getting that last little bit out of the can. It is also HIGHLY flammable, and until it evaporates (a few seconds) it is dangerous (NO sparks or live equipment) or you will have a flamethrower on your hands.

Please note when used as instructed and when NOT nearly empty these cans are perfectly safe...

[Abarbarian]

I use sevral different sized brushes , I have masking tape round the metal bits to stop accidental shorts . Also I use a high power modern bicycle pump with a flexible extension , this is a home made bodgeup . This really gets the dust flying and I hold a hoover tube close by to suck up the dust . The pump is a low cost item , lasts for ever and is very environment friendly , oh I nearly forgot , its very cheap to run in the long term .

[Taffycat]

Abarbarian ... sorry, but I've just got to ask... If you are using a bicycle pump, then one hand is presumably holding the tube-part, whilst the other is doing the pumpy-bit... how then, do you manage to hold the hoover tube at the same time? I have this mental picture of a bit of a juggling act going on

[Abarbarian]

Originally Posted by Taffycat

Abarbarian ... sorry, but I've just got to ask... If you are using a bicycle pump, then one hand is presumably holding the tube-part, whilst the other is doing the pumpy-bit... how then, do you manage to hold the hoover tube at the same time? I have this mental picture of a bit of a juggling act going on

If I remember I'll post pics when I get back from patio and wall building next week .

[floppybootstomp]

Bicycle pump.

What a brilliant idea.

I like it

I have a high powered bike pump, it's just found an extra use