diffierence between these - Page 2

D Valerius · 19-01-2010, 11:09 PM

Plastic ones haze glass ones have that stupid refractive designs in them ...cant win...

chicaboo · 19-01-2010, 11:25 PM

Quote:

Originally Posted by bourbon

chicaboo it doesnt matter if it is a genuine mazda or not...never buff the lights you have a real good chance of getting crazy cracks in them...its where there is all these small cracks in the plastic you can only see at certain angles...

ive seen genuine bj lights 1 & 2 gone hazy...it all depends on how they are looked after and the amount of sun they get...

If you look at Matt's aftermarket lights, you will understand what I am talking about, versus the micro scratches in plastic that you are referring to... I have never seen genuine BJ lights go HAZY and discolour [not foggy/dull that just polishes off]. If you are talking about the plastic going dull, and just polishing them back to good, that's a different thing all together. You can't easily polish the inside of a crappy aftermarket headlight where it has gone poop from the glue/resin leaching into the plastic over time, turning it opaqué...

Gav.

bourbon · 19-01-2010, 11:32 PM

i thought we were talking about the plastic lens going hazy...i havnt been talking about the reflector going poop

chicaboo · 20-01-2010, 07:08 AM

I'm not talking about the reflector either... I'm saying the plastic on the inner face of the cheap aftermarket lenses, actually turns $#!T from age/UV/proximity to adhesives/poor seal, etc, and no amount of buffing will ever get it good again. Short of taking the light apart and buffing the inside of the lens, but that won't change the fact that the plastic ages right through any how.

This isn't confined to just aftermarket headlights, but it usually is the case. The most classic example of genuine factory headlights that go bad, are the Starlet GT headlights. But at least on them, the plastic goes milky in a consistent fashion. You can polish a genuine BJ lense back to good health, but these cheapies are doomed to stay crap.

Gav.

bourbon · 20-01-2010, 09:31 AM

oh your talking inside the light...ive never seen a lens go ****ty on the inside of the plastic...it always the outside...happens to falcons ef/el, skylines, hondas, mazdas, lexus, toyotas...

nearly all headlights that were made between 1992-2004 in the plastic from the dealers origional moulds go ****ty after 3-5 years...

chicaboo · 20-01-2010, 09:51 AM

Yeah, I mean on the inside of the lens, or even through the thickness of the lens. That's why you can't polish it out. I know what you're talking about by polishing the surface micro-abrasions out which give it that foggy look, that's cool if the plastic hasn't gone off.

People hang $#!T on Neesahn, but my JDM headlights are still very clear after 12 years on the Pulsar. The vinyl on the other hand is another story...

Gav.

bourbon · 20-01-2010, 10:02 AM

wait for yours to go ****ty gav...it will happen...

asanga · 20-01-2010, 10:46 AM

Most headlight lenses are polycarb and the problem is its tendency to yellow and cloud over time as a result of UV exposure.......polycarb without a UV inhibiting additive will show strong yellowing upon exposure to natural and artificial sources of UV (sunlight and HIDs)..... so apart from the nature of the plastic itself, lamp selection can affect the yellowing process!!

marcs_sp20 · 25-01-2010, 01:20 AM

Did this with 2mins of hard rubbing, with toothpaste!

Google it, it works (and has in this instance)'

From this:

to this:

crappy pics I know, but the tootpaste has got rid of around 75% of the dullness, will go over them again tomorrow...

19-01-2010, 11:09 PM	#21
D Valerius AstinaGT Regular Join Date: Jan 2009 Location: Nundah, QLD Car: 2014 GJ Mazda 6 Posts: 317 View Photos By: D Valerius	Plastic ones haze glass ones have that stupid refractive designs in them ...cant win... __________________

19-01-2010, 11:32 PM	#23
bourbon The Hairy Mod Join Date: Sep 2005 Location: southside ya'll and North Side, Brissy Car: MINI Cooper S 2003 Posts: 8,110	i thought we were talking about the plastic lens going hazy...i havnt been talking about the reflector going poop __________________ For All your crash repair panels & lights, clear lights contact us at PANEL HOUSE 45 RANDALL ST SLACKS CREEK QLD 4127 PHONE : 07 3808 8737 FAX : 07 3808 8735

20-01-2010, 09:31 AM	#25
bourbon The Hairy Mod Join Date: Sep 2005 Location: southside ya'll and North Side, Brissy Car: MINI Cooper S 2003 Posts: 8,110	oh your talking inside the light...ive never seen a lens go **ty on the inside of the plastic...it always the outside...happens to falcons ef/el, skylines, hondas, mazdas, lexus, toyotas... nearly all headlights that were made between 1992-2004 in the plastic from the dealers origional moulds go ty after 3-5 years... __________________ For All your crash repair panels & lights, clear lights contact us at PANEL HOUSE 45 RANDALL ST SLACKS CREEK QLD 4127 PHONE : 07 3808 8737 FAX : 07 3808 8735**

20-01-2010, 10:02 AM	#27
bourbon The Hairy Mod Join Date: Sep 2005 Location: southside ya'll and North Side, Brissy Car: MINI Cooper S 2003 Posts: 8,110	wait for yours to go **ty gav...it will happen... __________________ For All your crash repair panels & lights, clear lights contact us at PANEL HOUSE 45 RANDALL ST SLACKS CREEK QLD 4127 PHONE : 07 3808 8737 FAX : 07 3808 8735**

20-01-2010, 10:46 AM	#28
asanga Senior Member Join Date: Dec 2006 Location: Sutherland Sydney Car: astina BA 1997 1.8Ltr Posts: 609 View Photos By: asanga	Most headlight lenses are polycarb and the problem is its tendency to yellow and cloud over time as a result of UV exposure.......polycarb without a UV inhibiting additive will show strong yellowing upon exposure to natural and artificial sources of UV (sunlight and HIDs)..... so apart from the nature of the plastic itself, lamp selection can affect the yellowing process!! __________________ 1997 Astina BA11P3, 5 Door Hatch, 1.8 DOHC, 5 Speed, 90,000 kms

20-01-2010, 07:08 AM	#24
chicaboo Senior Member Join Date: Sep 2004 Location: Logan prefecture Car: Touge monster Posts: 7,585	I'm not talking about the reflector either... I'm saying the plastic on the inner face of the cheap aftermarket lenses, actually turns $#!T from age/UV/proximity to adhesives/poor seal, etc, and no amount of buffing will ever get it good again. Short of taking the light apart and buffing the inside of the lens, but that won't change the fact that the plastic ages right through any how. This isn't confined to just aftermarket headlights, but it usually is the case. The most classic example of genuine factory headlights that go bad, are the Starlet GT headlights. But at least on them, the plastic goes milky in a consistent fashion. You can polish a genuine BJ lense back to good health, but these cheapies are doomed to stay crap. Gav.

20-01-2010, 09:51 AM	#26
chicaboo Senior Member Join Date: Sep 2004 Location: Logan prefecture Car: Touge monster Posts: 7,585	Yeah, I mean on the inside of the lens, or even through the thickness of the lens. That's why you can't polish it out. I know what you're talking about by polishing the surface micro-abrasions out which give it that foggy look, that's cool if the plastic hasn't gone off. People hang $#!T on Neesahn, but my JDM headlights are still very clear after 12 years on the Pulsar. The vinyl on the other hand is another story... Gav.

25-01-2010, 01:20 AM	#29
marcs_sp20 Moderator Join Date: Oct 2005 Location: Ipswich, Queensland Car: 2002 Mazda Astina SP20 2006 Mazda 6 GY Wagon Posts: 9,769 View Photos By: marcs_sp20	Did this with 2mins of hard rubbing, with toothpaste! Google it, it works (and has in this instance)' From this: to this: crappy pics I know, but the tootpaste has got rid of around 75% of the dullness, will go over them again tomorrow... __________________