# fiberglass help??

**URL:** <https://forums.speedlife.net/t/fiberglass-help/36377>\
**Category:** NYSpeed Automotive\
**Created:** [October 3, 2007, 8:22am UTC](https://forums.speedlife.net/t/fiberglass-help/36377 "2007-10-03T08:22:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![speedbluntz44](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/speedbluntz44/32/5158_2.png) [@speedbluntz44](https://forums.speedlife.net/u/speedbluntz44)\
**Post date:** [October 3, 2007, 8:22am UTC](https://forums.speedlife.net/t/fiberglass-help/36377/1 "2007-10-03T08:22:03Z")

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hi everyone, just joined up, got a new car, cracked the fiberglass front air dam already, need some advice on how to fix or ne1 to go to around western ny … thanx -Dom

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**Author:** ![Schema](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@Schema](https://forums.speedlife.net/u/Schema)\
**Post date:** [October 3, 2007, 8:25am UTC](https://forums.speedlife.net/t/fiberglass-help/36377/2 "2007-10-03T08:25:34Z")

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Grind out the cracked glass.  
Sand with 60 grit, create a very rough surface  
Buy Bondo fiberglass filler, short strand  
Apply, sand, smooth, paint

They key is to create as rough of a surface for the new glass to stick to. This will be a physical bond, and can only be as strong as what it can grab on to.