+ Reply to Thread
Results 1 to 8 of 8

Thread: How to prevent fog lights from cracking

  1. #1
    Join Date
    Jan 2004
    Posts
    58

    Default How to prevent fog lights from cracking

    Does anyone have an effective way to prevent your fogs from taking damage? I ordered a pair of new ones, and would like to prolong their life. I travel 80 miles per day for work...

    Are those protective covers effective?

  2. #2
    bimmerd00d's Avatar
    bimmerd00d is offline Throbbing Member
    Join Date
    Dec 2003
    Location
    Little Elm, TX
    Posts
    1,262

    Default

    bavarian autosport sells 3m Stoneguard, it works rather well and is unnoticeable from more than 2ft away
    1998 540i 6-spd - Old Faithful (no i dont mean the radiator)
    2005 Dodge Ram 2500 Cummins - Smoke Machine
    2001 Volvo C70 Coupe - The Wifemobile

  3. #3
    shragon is offline Big, Big Time Poster
    Join Date
    Dec 2003
    Location
    Bay Area, CA
    Posts
    486

  4. #4
    Join Date
    Jan 2004
    Posts
    58

    Default

    Thanks, I ordered the clears today. Have you done business with them before?

  5. #5
    winfred's Avatar
    winfred is offline 5-10 Grand Master
    Join Date
    Dec 2003
    Location
    baton rouge, loserana
    Posts
    8,985

    Default

    i've got the bubbles and the stick on's between my two cars, i think the bubbles give a little better protection, by keeping the impact off the surface of the light, but they can yellow but are easy to replace
    all america wants is cold beer warm pussy and a place to take a shit with a door on it

  6. #6
    Unregistered Guest

    Default

    Spray-on Chip Guard by SEM may be a possibility. It's a urethane-based clear spray that's used to prevent rock chips in the paint on rocker panels, etc. I put it on the vertical fascia beneath my headllights, and plan to shoot some on my old, cracked fog lenses to see how it effects the brightness and projection of the light beam.

    I did some research on Google looking for info on headlight and paint protection films such as Stone Guard, etc.. Reportedly, urethane-based is the way to go, as vinyl based products are said to evaporatively thin, and then yellow. (One website noted that, for example, vinyl shower curtains start out heavy but get lighter as the chemical fumes evaporate. That's why they stink when new.)

    Anyhow, upon reading the SEM product website label and Chip Guard can, it seems this stuff is urethane-based and so should be resistant to evaporative thinning. Thus, it should offer good impact protection for a long time. At ~$15 per can, one could do a lot of headlights for a lot less money than paying ~$50 for a few small pre-cut scraps of 40 mil film.

    Optical clarity could be an issue with a spray-on application. But, driving in the rain with water on the lenses does not seem to hurt their optical clarity, so I suspect sprayed-on Chip Guard might do the trick. We'll see.

  7. #7
    Unregistered Guest

    Default

    I found this to be an interesting approach...........

    http://www.bmwe34.net/e34main/upgrad...tive_cover.htm

  8. #8
    winfred's Avatar
    winfred is offline 5-10 Grand Master
    Join Date
    Dec 2003
    Location
    baton rouge, loserana
    Posts
    8,985

    Default

    the main issue is can it handle the heat

    Quote Originally Posted by Unregistered
    Spray-on Chip Guard by SEM may be a possibility. It's a urethane-based clear spray that's used to prevent rock chips in the paint on rocker panels, etc. I put it on the vertical fascia beneath my headllights, and plan to shoot some on my old, cracked fog lenses to see how it effects the brightness and projection of the light beam.

    I did some research on Google looking for info on headlight and paint protection films such as Stone Guard, etc.. Reportedly, urethane-based is the way to go, as vinyl based products are said to evaporatively thin, and then yellow. (One website noted that, for example, vinyl shower curtains start out heavy but get lighter as the chemical fumes evaporate. That's why they stink when new.)

    Anyhow, upon reading the SEM product website label and Chip Guard can, it seems this stuff is urethane-based and so should be resistant to evaporative thinning. Thus, it should offer good impact protection for a long time. At ~$15 per can, one could do a lot of headlights for a lot less money than paying ~$50 for a few small pre-cut scraps of 40 mil film.

    Optical clarity could be an issue with a spray-on application. But, driving in the rain with water on the lenses does not seem to hurt their optical clarity, so I suspect sprayed-on Chip Guard might do the trick. We'll see.
    all america wants is cold beer warm pussy and a place to take a shit with a door on it

+ Reply to Thread

Similar Threads

  1. cracking the code
    By shogun in forum 8 Series BMW
    Replies: 0
    Last Post: 11-07-2007, 01:51 AM
  2. Anyone ever use POR-15 rust prevent?
    By Jon K in forum 5 Series BMW
    Replies: 12
    Last Post: 07-23-2006, 11:59 PM
  3. Can bad compression prevent my e34 from starting?
    By gmannino in forum 5 Series BMW
    Replies: 10
    Last Post: 04-16-2006, 03:03 AM
  4. Replies: 6
    Last Post: 10-27-2005, 04:56 AM
  5. Burlwood is cracking
    By Gooch in forum 5 Series BMW
    Replies: 14
    Last Post: 05-07-2004, 11:54 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts