GT85 vs WD40
WD40 IS a Lubricant. A thin lubricant with a lot of solvent. Leave some in a jar and it does not ALL disappear.
It does attack rubber – Workshop bulletin went round Rover/LandRover years ago.
Displaces water a treat.
After many years I have come back to it and am a fan.
GT85 seems very similar but not sure about the lubing qualities of the amount of Teflon. Not as oily.
Tri-flow with Teflon seems to work well with cables.Posted 6 years agoashthesplashMember
WD40 is a water displacer, “it took 40 attempts to make a Water Displacer” hence WD40
what about TF2? personally i dont think many cyclists use WD40 much these days it tends to be between TF2 and GT85 (obviously some people do still use WD40, i know i’m going to get a few who do still use it, but i’m talking cyclists as a whole)Posted 6 years agoandylMember
It displaces and water and leaves a protective film to prevent corrosion. It can also act as a light lubricant in the right situation (low load), be used as a cleaner on the right materials and help penetrate seized parts.
There are better products for penetration (oo-er), lubrication and cleaning but it’s a bit of a jack of all trades and as such useful round the house and in the garage for fixing your gardening tools and austin allegro.
GT85 is also good at penetrating due to the solvents (low surface tension organic solvent = able to get into tight spots) and doesn’t leave a wet residue (which is why I use it and not WD40) but also leaves a dry film of PTFE which may or may not be suitable. Also the solvent can damage some materials as with a lot of solvent based stuff.
I prefer IPA for cleaning and leaving no residue.Posted 6 years ago
GT85 if I need to give something a quick blast and protect and not have it al slimy.
WD40 for stuff in the shed that might rust and are nice simple items with nothing to get damaged, also works well cleaning the plastic parts in the car engine bay but I normally use the waste diesel from changing the fuel filter for that.rootes1Member
WD40 is the only one I use. I use it for displacing water (from my chain) and cleaning and unseizing things.
They spray it on surfaces in dodgy pubs to stop people doing drugs off the surfaces.
WD40 is a better flame thrower and lighting the end of the red plastic tube gives you a built in pilot light…Posted 6 years agoandylMember
stevewhyte – Member
I have used GT85 for 20 years as a chain lube, and never had to replace a chain before replacing the Alloy chainrings!!
You really should be going through more chains than chainrings. Alloy inner and middle chainrings are a bad idea to me personally and I wonder if poor surface lube of a chain increases wear on the rings? You are better with a dropper bottle of dry PTFE lube than GT85 (similar thing, no aerosol so better for the environment and goes on thicker) although if I use PTFE dry lube I normally give the chain a good going over with the GT85 and then lube with the bottle on the bike.Posted 6 years agotransappMember
Gt85 always used to do me fine as a lube. Plus it smells if bike workshops which = fun therefor is ace. I stopped using it when I became too ham fisted to not get it on my disc brakes and it was costing a small fortune in pads!
WD40 smells of cars that don’t start = no fun
Simples!Posted 6 years agoNorthwindSubscriber
reggiegasket – Member
WD is such a good lubricant it sticks grips on….
Erm. The idea is to make it easier to get tight grips on, then the solvent flashes off and leaves the grips attached. Just like isopropyl alcohol only worse. WD40 leaves an oil film which is a lubricant- not a very effective one and not suitable for much on bikes though.Posted 6 years agoreggiegasketMember
The idea is to make it easier to get tight grips on, then the solvent flashes off and leaves the grips attached. Just like isopropyl alcohol only worse. WD40 leaves an oil film which is a lubricant- not a very effective one and not suitable for much on bikes though.
like I said, it’s such a good lubricant the grips are well and truly stuck on….Posted 6 years ago
The topic ‘GT85 vs WD40’ is closed to new replies.