Audi Bumper Material and Bumper Repair
Audi Bumper Material and Bumper Repair
Polyurethane (PUR), Reaction Injection Molding (RIM), Reinforced reaction injection molding (RRIM), Thermoset polyurethane — Most common on domestic vehicles. Yellow or grey in color. Bubbles and smokes when you attempt to melt. Thermo-set PUR sands powdery and can be smoothed with a grinder as long as you don’t use high pressure or high speed that causes the plastic to liquefy.
PUR and most thermo-set plastics are repaired by heat fusing and grinding a “V” groove and filling with urethane filler material and structural support (stainless steel screen) to the backside of the cracked material.
Thermoplastic Olefin (TPO), Thermo-Elastic Olefin (TEO)— TPO and TEO are a combination of polypropylene, an elastomer or rubber, and a mineral filler such as calcium carbonate or talc.
TPO bumper material sands in chunks melts like butter with high-speed grinders, feels like wax and gets stringy when hot, so keep this in mind when trying sand or grind a TPO bumper cover.
TPO bumper covers are the most difficult to repair because they contain 3% to 5% wax-based mold release within the material. The embedded wax makes it difficult for filler, adhesive, primer and paint to stick. Body shops prefer to discard a TPO bumper because the repair is so difficult
However, TPO IS repairable as long as you know how to prepare it. You must use a cleaner and adhesion promoter prior to adding any filler material.
Thermoplastic Poly Propylene— PP is semi-flexible, melts & smears when grinding, waxy or greasy feel. Repaired by heat fusing and grinding a “V” groove and filling with polypropylene filler material and structural support (stainless steel screen) to the backside of the cracked material.
A3 S line trim; w/o headlamp washer (2006-2008) Front Bumper PP (Polypropylene)
A3 w/Parking Aid (2009-2013) Rear Bumper PP (Polypropylene)
A3 w/o Parking Aid (2009-2013) Rear Bumper PP (Polypropylene)
A3 w/Sport Pkg (2006-2008) Rear Bumper PP (Polypropylene)
A3 BASE (2006-2008) Rear Bumper PP (Polypropylene)
A4 CABRIO; w/o Sport Pkg; w/o Headlamp Washer (2007-2009) Front Bumper PP (Polypropylene)
A4 base line; w/o headlamp washer (2006-2008) Front Bumper PP (Polypropylene)
A4 w/S-Line Pkg; w/Headlamp Washers (2005-2008) Front Bumper PP (Polypropylene)
A4 Sedan/Wagon; w/o Sport Pkg; w/o Headlamp Washer (2005-2008) Front Bumper PP (Polypropylene)
A4 Cabrio (2003-2004) Front Bumper PP (Polypropylene)
A4 Sedan/Wagon; From 3-03; w/o Parking Aid (2003-2005) Front Bumper PP (Polypropylene)
A4 Sedan/Wagon; To 3/03 (2002-2003) Front Bumper PP (Polypropylene)
A4 Sedan; w/o S-Line Pkg; w/o Parking Aid (2009-2012) Rear Bumper PP (Polypropylene)
A4 4dr wagon; w/o parking aid (2005-2008) Rear Bumper PP (Polypropylene)
A4 4dr sedan; w/o parking aid (2005-2008) Rear Bumper PP (Polypropylene)
A4 Sedan; w/o Parking Aid (2004-2005) Rear Bumper PP (Polypropylene)
A4 Cabrio; w/o park sensor (2003-2006) Rear Bumper PP (Polypropylene)
A4 4dr wagon; w/1.8L engine; w/o park sensor (2002-2005) Rear Bumper PP (Polypropylene)
A4 Sedan; w/o Parking Aid (2002-2003) Rear Bumper PP (Polypropylene)
A4 4dr wagon (1996-2001) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
A4 4dr sedan (1996-2001) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
A5 Quattro Coupe; w/o S-Line Pkg; w/Headlamp Washer; w/Parking Aid Sensors (2013-2017) Front Bumper PP (Polypropylene)
A5 Quattro CABRIO; w/o S-Line Pkg; w/Headlamp Washer; w/Parking Aid Sensors (2012-2017) Front Bumper PP (Polypropylene)
A5 Quattro Coupe; w/S-Line Pkg; w/ H/Lamp Washer (2008-2012) Front Bumper TPO or TEO (Thermo Plastic Olefin)
A5 Quattro w/o Headlamp Washer (2008-2012) Front Bumper TPO or TEO (Thermo Plastic Olefin)
A5 Quattro w/Headlamp Washer; w/o S Line Pkg (2008-2012) Front Bumper TPO or TEO (Thermo Plastic Olefin)
A6 w/o S-Line Pkg; w/Headlamp Washers; w/Square Fog Lamps (2009-2011) Front Bumper PP (Polypropylene)
A6 w/Headlamp Washer Assy; w/o Sport Pkg (2005-2008) Front Bumper PP (Polypropylene)
A6 w/V6 engine (2002-2004) Front Bumper PP (Polypropylene)
A6 w/V6 engine (1998-2001) Front Bumper TPO or TEO (Thermo Plastic Olefin)
A6 w/V8 engine (1998-2005) Front Bumper PP (Polypropylene)
A6 w/S-Line Pkg; w/Parking Aid; w/o Parking Assist (2016-2018) Rear Bumper PP (Polypropylene)
A6 4dr sedan; w/parking aid (2005-2008) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
A6 4dr sedan; w/o parking aid (2005-2008) Rear Bumper PP (Polypropylene)
A6 4dr wagon; w/parking aid (2005-2008) Rear Bumper PP (Polypropylene)
A6 4dr sedan; w/V6 engine (2002-2004) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
A6 ALLROAD QUATTRO; w/o Park Distance Control (2002-2005) Rear Bumper PP (Polypropylene)
A6 4dr sedan; w/V8 engine; w/o proximity sensor (2000-2001) Rear Bumper PP (Polypropylene)
A6 4dr sedan; w/V6 engine; w/proximity sensor (1998-2001) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
A6 4dr sedan; w/V6 engine; w/o proximity sensor (1998-2001) Rear Bumper PP (Polypropylene)
A8 Quattro w/o Distance Sensor; w/Parking Aid (2004-2007) Front Bumper PP (Polypropylene)
A8 Quattro w/proximity sensor (2000-2003) Front Bumper PP (Polypropylene)
A8 Quattro w/o proximity sensor (2000-2003) Front Bumper PP (Polypropylene)
Q5 w/S-Line Pkg (2009-2017) Rear Bumper PP (Polypropylene)
RS4 CABRIO; w/o Sport Pkg; w/o Headlamp Washer (2008) Front Bumper PP (Polypropylene)
RS4 Sedan; w/o Sport Pkg; w/o Headlamp Washer (2007-2008) Front Bumper PP (Polypropylene)
S4 CABRIO; w/o Sport Pkg; w/o Headlamp Washer (2007-2009) Front Bumper PP (Polypropylene)
S4 (2005-2008) Front Bumper PP (Polypropylene)
S4 w/Headlamp Washers (2005-2008) Front Bumper PP (Polypropylene)
S4 Sedan/Wagon; w/o Sport Pkg; w/o Headlamp Washer (2005-2008) Front Bumper PP (Polypropylene)
S4 Cabrio (2003-2004) Front Bumper PP (Polypropylene)
S4 Sedan/Wagon (2002-2005) Front Bumper PP (Polypropylene)
S4 (1996-2002) Front Bumper PP (Polypropylene)
S4 (1992-1994) Front Bumper PP (Polypropylene)
S4 4dr wagon; w/o parking aid (2005-2008) Rear Bumper PP (Polypropylene)
S4 4dr sedan; w/o parking aid (2005-2008) Rear Bumper PP (Polypropylene)
S4 Cabrio; w/o park sensor (2003-2006) Rear Bumper PP (Polypropylene)
S4 4dr sedan; w/o proximity sensor (2002-2005) Rear Bumper PP (Polypropylene)
S5 CABRIO; w/Parking Aid (2010-2011) Front Bumper TPO or TEO (Thermo Plastic Olefin)
S5 Coupe; w/ H/Lamp Washer (2008-2012) Front Bumper TPO or TEO (Thermo Plastic Olefin)
S5 CABRIO; w/o Parking Aid (2008-2012) Front Bumper TPO or TEO (Thermo Plastic Olefin)
S6 w/Headlamp Washer Assy; w/o Sport Pkg (2007-2008) Front Bumper PP (Polypropylene)
S6 w/V8 engine (2002-2003) Front Bumper PP (Polypropylene)
S6 w/Parking Aid; w/o Parking Assist (2016-2018) Rear Bumper PP (Polypropylene)
S8 w/proximity sensor (2000-2003) Front Bumper PP (Polypropylene)
S8 w/o proximity sensor (2000-2003) Front Bumper PP (Polypropylene)
TT Quattro w/o S-Line Pkg (2000-2006) Front Bumper TPO or TEO (Thermo Plastic Olefin)
TT Quattro (2000-2006) Rear Bumper PP (Polypropylene)