M3 Bumper Group Buy

[pnosker]

I just want to see how much interest I can get in a group buy for bumpers.

It appears that the price not be close to as high as any seller I've seen online. The bumper will be the stock M3 4 door molded out of polypropylene (PP). Here's a pic.


Ok, looks like this will be about $250 + s/h. I'm still not 100% sure about the final cost but let's say this is a rough estimate.

Minimum order is 5, of course cost will be significantly cheaper with more orders.

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Just put your name next to the next available number if you're definitely going to do this. If you have questions, let me know and I'll ask.




EDIT: I don't have time to run this group buy in addition to the HID one, so if anyone wants to do this, PM me and I'll give you the details to resume this buy. Sorry. I suggest someone from the West Coast take it over since the shipping from Asia to there is much less than to the NYC seaport.

[BurningRiver]

I'm interested.

[Flava Flav]

there is a group buy for m3 bumpers on bimmerforums. Here's the link
http://forums.bimmerforums.com/forum...ight=m3+bumper

[aznlonewolf135]

School just started and I've got things to pay for...but I would be interested...

[pnosker]

Originally Posted by Flava Flav

there is a group buy for m3 bumpers on bimmerforums. Here's the link
http://forums.bimmerforums.com/forum...ight=m3+bumper

This bumper is made of PP, not PU. PU is brittle and will crack easily after about 1 year. It stays flexible for a while because of the oils saturated in its hydrogen bonds. Also, this bumper will be ~$100 or so cheaper than that one.

Edit:
Right now it's not $100 less, but with 10 people it will get closer (due to shipping costs).

[campaiar]

I'd do it for around $100 cheaper.

[thedyingiraffe]

Interested...

[96cali]

There is no way that is made of polypropylene. PP is waxy, has low melt/flex point and most of all will not hold paint. PP is what most shampoo bottles are made of. Check this out, think you must be misinformed. OEM are probably ABS or PU. PU comes in all different durometers (flexibility) including the self skinning, flexible variety some spoilers are made of.

[96cali]

Originally Posted by Flava Flav

there is a group buy for m3 bumpers on bimmerforums. Here's the link
http://forums.bimmerforums.com/forum...ight=m3+bumper

Quoted fom th bf.c link above:
"These are OE quality bumpers, made from OE materials. E36 is PolyUrethane (PUR), and E39 and E46 are PolyPropylene (Coupe E46 is ABS OE Quality),"

Still cannot believe the e46 and e39 are PP. Moot point as the e36 is listed as PU.

[pnosker]

Yeah, for that group buy. My dad has a PhD in polymer physics and I work with him over the summer in his research center at Rutgers University. In fact I have a patent involving a blend of PU + others in order to create a fire retardant that sticks to polyethylene. I know that PP has a low melting point, but as long as the polymerization is created in a way that there are long enough chains, it will be fine for a bumper. OEM is made out of ABS.

[HigH RevZ]

Originally Posted by campaiar

I'd do it for around $100 cheaper.

x2

[hhspunter]

Originally Posted by pnosker

Yeah, for that group buy. My dad has a PhD in polymer physics and I work with him over the summer in his research center at Rutgers University. In fact I have a patent involving a blend of PU + others in order to create a fire retardant that sticks to polyethylene. I know that PP has a low melting point, but as long as the polymerization is created in a way that there are long enough chains, it will be fine for a bumper. OEM is made out of ABS.

that's really cool... for real i'm a big nerd... how old are you?

[96cali]

Originally Posted by pnosker

Yeah, for that group buy. My dad has a PhD in polymer physics and I work with him over the summer in his research center at Rutgers University. In fact I have a patent involving a blend of PU + others in order to create a fire retardant that sticks to polyethylene. I know that PP has a low melting point, but as long as the polymerization is created in a way that there are long enough chains, it will be fine for a bumper. OEM is made out of ABS.

Mkay, you win. I want to see paint stick to the PP e46 part though. There is a reason OEM is ABS despite PP being much less expensive.

[pnosker]

Yeah that's true... I hope people have a black 318ti then... hahah, well seriously, http://forums.bimmerforums.com/forum...=483549&page=2 is made of PP too and mentions how paint works.

[pnosker]

Originally Posted by hhspunter

that's really cool... for real i'm a big nerd... how old are you?

17, 18 in 2 days.