How does one perform crack repair?
this is actually for a car bumper cover with a small crack; I’m thinking I can repair it from the backside. I just want to keep the crack from spreading. Any tips?
Drill round holes at the termini,
fill, sand, prep and paint.
This
I have heard good things about this stuff: http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_x_7100086-P_x_x?cm_mmc=CSE--Google--VALUE3-_-VALUE4&ci_src=14110944&ci_sku=#utm_source=cse&utm_medium=google&utm_campaign=value3&utm_content=value4
I have not used it myself. I actually heard about it being used to repair polyethylene boats. Ironically, it is said to work well on bumpers as well.
Here is an instructional pdf file: http://multimedia.3m.com/mws/mediawebserver?mwsId=66666UuZjcFSLXTtNxMyLXTyEVuQEcuZgVs6EVs6E666666–
awesome! thank you
Sounds like the ticket. Thank you so much. There is an Advance Auto down the road from me and I need to get this fixed before driving halfway across the country.
Thanks again!
Any reason not to use G-flex if one has
it already? If bumpers are ABS, I know that G-flex sticks “like glue.”
I would reinforce from behind is the cracked area will be under significant stress. What caused it to crack, a collision, or just the bumper bouncing on its mounts?
May well not be ABS
– Last Updated: Dec-19-11 12:02 PM EST –
A lot of automotive bumpers are made of so-called TPO (thermoplastic poly ofefin) which is often a blend of the polyolefins polyethylene and polypropylene. There are also mold release agents added to the plastic which makes adhesive bonding problematical.
G-Flex will adhere to polypropylene if the surface can be thoroughly cleaned and flame treated but it is tricky. Not even G-Flex will adhere to polypropylene.
More info here: http://www.autobodysupply.net/articles.asp?id=135
impact
I hit a big chunk of ice that fell off a semi mudflap! The crack is very clean as of now, but I’m worried about it spreading.