Cat Crap?

[laRIKin]

and wasn't very impressed. However after reading everyones comments I might give it another try (if I can find it in the garage!). I too found it a bit smeary. But I do recommend "Plexus" plastic polish for visors and screens. Again about $10-12 from Motomail. Has a limited effect on fogging but really cleans plastic. Even use it on my plane!

We are now using Plexus as well, it's good sh... I mean good stuff.
When I have used Cat Crap I put it on real lightly and wipe it lightly off.

http://www.plexusplasticcleaner.com/plexus.html

[MyGSXF:Me]

I used it over the weekend just gone.. on both inside & outside of visor.

Inside.. didn't do much to stop fogging

Outside.. made the rain smear, instead of running off (like it does with Pledge) & made it bloody hard to see!!!!

Plus as mentioned.. it's $10 retail.. & no freight charge!! check out your local bike shop!

[T.W.R]

After actually seeing the results of it use on a visor that endured a few hours riding in varying levels of rain & drizzle only a few days ago I wouldn't touch the shit the way it left the visor with moisture build-up was bloody dangerous considering the last hour of travel was in the dark & necessitated riding with the visor up (and it's a clear visor)

I'd rather stick with a genuine optical lens cleaner brought from an opticians It cleans better than any imitation glass/visor cleaner and minimised moisture & condensation build-up.

Most opticians sell cleaner kits for around $7.50 that includes a spray dispenser (42ml) & micro mesh cloth. It's suitable for glass, plastic, AR coated, & Mirror coated lenses

[Grantasaurus]

Excuse my ignorance, whats a fog city?

It works by effectively double-glazing your visor. There's a pocket of air sealed in under the plastic by the strip around the edge and this insulates the inside of your visor from the cold air outside and stops your warm moist breath from condensing on it.
They really work apparently, although I've never used one.

[klingon]

Hmm... interesting comments.

I've only been using it for a couple of weeks so my thoughts should be taken in that context, but I have found it works well for me. I live in Auckland so I don't have to face the severe fogging issues that some of you do.

I was told when I bought it (from Motomail) that I would need to reapply it after a couple of hours. In my limited experience, I think that's a couple of hours of actual fogging. I ride to work and back every day, so the maximum fogging I get is about half an hour a day (mornings only). After 4 days I needed to reapply it.

It is definitely possible to apply too much, and when I did that it made the visibility through the visor worse than if I hadn't used it at all. Particularly riding in the dark, it made the reflections of headlights and street lights really difficult.

If I use it correctly, that little tub will probably last me a year of commuting. I just wipe my finger over the surface of the crap, then rub my finger around the inside of the visor, then buff it off with a piece of soft cloth. It's hard to resist the temptation to use too much and I wonder if that might be part of the problem with the night vision thing?

By the way, I was advised to put it on the inside of the visor only.

The best part of it (that I'm surprised nobody has mentioned yet) is saying to your friends "I have cat crap on my visor!" and "I carry cat crap in my pocket wherever I go!" and other such juvenile comments.

So in summary I recommend it as a cheap option for Auckland conditions.

[What?]

It works by effectively double-glazing your visor. There's a pocket of air sealed in under the plastic by the strip around the edge and this insulates the inside of your visor from the cold air outside and stops your warm moist breath from condensing on it.
They really work apparently, although I've never used one.

Rubbish. They don't fog up if you breath on them straight out of the packet, so whilst there may be a small pocket of trapped air between the visor and Fog City, that does not affect the way it works. Nolan's pinlock inserts also don't fog up, and they have no gap when fitted.
As for Cat Crap - the second half of the name bears the truth, IMO, although it may be better than nothing. But then, polishing the inside of the visor with soap is just as effective, and won't cost as much.

[placidfemme]

Interesting comments... deffinatley making me thing about whether I wanna buy the cat crap or the fog city insert thingy-ma-bob

[Grantasaurus]

Rubbish. They don't fog up if you breath on them straight out of the packet, so whilst there may be a small pocket of trapped air between the visor and Fog City, that does not affect the way it works. Nolan's pinlock inserts also don't fog up, and they have no gap when fitted.
As for Cat Crap - the second half of the name bears the truth, IMO, although it may be better than nothing. But then, polishing the inside of the visor with soap is just as effective, and won't cost as much.

If thats not the case, then how do they work exactly? Enlighten us.
A magical anti-fog material that prevents water from condensing no matter what conditions it's working under?

Methinks its the insulation, and perhaps some anti-fog property of the insert. The only reason they don't fog up out of the packet is that they're not sitting on a cold visor as they do on a cold morning, the conditions under which they're supposed to work. Air + Saturated water vapour in your breath + cold visor = condensation. The visor is below the saturation temp of the water vapour so you get condensation.

[centaurus]

If thats not the case, then how do they work exactly? Enlighten us.
A magical anti-fog material that prevents water from condensing no matter what conditions it's working under?

The fog city insert is made from a special material that doesn't fog. Doesn't matter how much you try, you will never be able to fog a fog city - it repels condensation. I know this because I tried until I got it wet - that's how humid the air around it was, and still no condensation.

The visor behind the fog city doesn't fog because it is isolated from the atmospheric humidity (the fog city has sticky edges), this way it doesn't matter how much difference is between the inner and the outer temperature, because the air between the visor and the insert is isolated, it can't gain humidity so there is no condensation.

[Grantasaurus]

How does it repel condensation? What's this material called?
Sorry, I'm still sceptical and don't think there is such a material. Why don't they make visors out of this material then if it's so incredibly good at "repelling" condensation.
You tried breathing on it until it got wet? That would be condensation would it not? Water condensing out of the air and all....

[centaurus]

How does it repel condensation? What's this material called?
Sorry, I'm still sceptical and don't think there is such a material. Why don't they make visors out of this material then if it's so incredibly good at "repelling" condensation.
You tried breathing on it until it got wet? That would be condensation would it not? Water condensing out of the air and all....

Apparently this is a trade secret. Nobody wants to say what this material is and how it repels the condensation.

As far as I can tell from what information I've found on the net, they don't make full visors out of it because the material is too flimsy.

However, looks like even the default antifog inserts that come with Arai helmets and other high end brands are made from the same material (but don't quote me on this, I am not 100% sure)

When I say it got wet, I mean that after about an hour of breathing at 99% humidity, exactly in front of the nose the visor was wet for a couple of square cm wet, but transparent (when it fogs, it's not transparent anymore).

[centaurus]

Oh, and by the way... I've just read somewhere on the net that cat crap is not produced anymore. I can't guarantee the source, but it seemed pretty genuine.

[Matt]

I used Cat Crap for a couple of weeks on my glasses & visor and it seemed to work a bit, but had to reapply daily - then got my eyes zapped & bought a pinlock visor and now never fog at all - IMO put the $10 towards a pinlock/fogcity solution...

Matt

[mazz1972]

They have a website www.catcrap.com.au

here's a review including pics of a visor they tested it on http://www.webbikeworld.com/r2/motor...isor-anti-fog/