Buick Bumper Material and Bumper Repair
Buick 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.
Allure (2010) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Allure CX|CXL|CXS; w/Mldg (2005-2007) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Allure CX; w/o Mldg (2005-2007) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Allure CXL|CXS; w/o Mldg (2005-2007) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Allure CX|CXL|PREMIUM|TOURING; w/o Park Assist System (2010) Rear Bumper PP (Polypropylene)
Allure CXS; Dual Exh; w/Park Assist System; w/Side Object Sensor (2010) Rear Bumper PP (Polypropylene)
Allure CXL|CXS; w/Chrome Pkg; w/Object Sensor (2005-2009) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Allure CX|CXL|CXS; w/Chrome Pkg; w/o Object Sensor (2005-2009) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Allure CXL|CXS; w/o Chrome Pkg; w/o Object Sensor (2005-2008) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Allure CXL|CXS; w/o Chrome Pkg; w/Object Sensor (2005-2008) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Century Century/Limited (2004-2005) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Century Century/Limited; w/molded impact strip (2003-2005) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Century Century/Limited; w/o molded impact strip (1997-2003) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Century (1989-1996) Front Bumper PUR or RIM (Urethane)
Century (1982-1988) Front Bumper PUR or RIM (Urethane)
Century Century/Limited (2004-2005) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Century Century/Limited; w/o molded impact strip (2003-2004) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Century Century/Limited; w/molded impact strip (2003-2005) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Century Century/Limited (1997-2004) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Century 4dr sedan (1989-1996) Rear Bumper PUR or RIM (Urethane)
Century 2dr coupe (1989-1996) Rear Bumper PUR or RIM (Urethane)
Century 2dr coupe (1984-1988) Rear Bumper PUR or RIM (Urethane)
Century 4dr sedan (1984-1988) Rear Bumper PUR or RIM (Urethane)
Century 4dr sedan (1982-1983) Rear Bumper PUR or RIM (Urethane)
Century 2dr coupe (1982-1983) Rear Bumper PUR or RIM (Urethane)
Enclave w/Parking Aid Sensors (2008-2012) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Enclave (2008-2012) Rear Bumper PP (Polypropylene)
Lacrosse (2010-2013) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Lacrosse (2008-2009) Front Bumper PP (Polypropylene)
Lacrosse CX; w/o Mldg (2005-2007) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Lacrosse CX|CXL|CXS; w/Mldg (2005-2007) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Lacrosse CXL|CXS; w/o Mldg (2005-2007) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Lacrosse CX|CXL|PREMIUM|TOURING; w/o Park Assist System (2010-2013) Rear Bumper PP (Polypropylene)
Lacrosse CXS; Dual Exh; w/Park Assist System; w/Side Object Sensor (2010-2013) Rear Bumper PP (Polypropylene)
Lacrosse SUPER Model (2008-2009) Rear Bumper PP (Polypropylene)
Lacrosse CXL|CXS; w/Chrome Pkg; w/Object Sensor (2005-2009) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Lacrosse CXL|CXS; w/o Chrome Pkg; w/o Object Sensor (2005-2007) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Lacrosse CX; w/o Chrome Pkg (2005-2007) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Lacrosse CXL|CXS; w/o Chrome Pkg; w/Object Sensor (2005-2007) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Lacrosse CX|CXL|CXS; w/Chrome Pkg; w/o Object Sensor (2005-2009) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Lesabre Custom (2000-2005) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Lesabre Limited (2000-2005) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Lesabre (1997-1999) Front Bumper PUR or RIM (Urethane)
Lesabre Custom (2000-2005) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Lesabre (1997-1999) Rear Bumper PUR or RIM (Urethane)
Lucerne CXL|CXL SE|SUPER (2009-2011) Front Bumper PP (Polypropylene)
Lucerne CXL|CXL SE|SUPER (2008) Front Bumper PP (Polypropylene)
Lucerne CX (2006-2011) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Lucerne CXL (2006-2008) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Lucerne CXS (2006-2008) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Park Avenue (1997-2005) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Park Avenue except Ultra (1991-1994) Front Bumper Bexloy V
Park Avenue w/o proximity sensor (2001-2005) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Park Avenue (1997-2005) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Park Avenue except Ultra (1995-1996) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Park Avenue Ultra (1991-1996) Rear Bumper PUR or RIM (Urethane)
Park Avenue except Ultra (1991-1994) Rear Bumper PUR or RIM (Urethane)
Rainier (2004-2007) Front Bumper PP (Polypropylene)
Rainier (2002-2008) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Regal BASE|CXL|PREMIUM (2014-2017) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Regal eASSIST; w/o Front Bumper Panel (2012-2013) Front Bumper PP (Polypropylene)
Regal GS; w/o Park Assist (2012-2013) Front Bumper PP (Polypropylene)
Regal BASE|CXL|PREMIUM; w/o Front Bumper Panel (2011-2013) Front Bumper PP (Polypropylene)
Regal (1997-2005) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Regal 4dr sedan (1995-1996) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Regal 4dr sedan; w/o bright mldgs (1993-1994) Front Bumper PUR or RIM (Urethane)
Regal 4dr sedan; w/bright mldgs (1991-1992) Front Bumper PUR or RIM (Urethane)
Regal 2dr coupe; w/o bright mldgs (1991-1994) Front Bumper PUR or RIM (Urethane)
Regal 2dr coupe; w/bright mldgs (1991-1994) Front Bumper PUR or RIM (Urethane)
Regal BASE|CXL|PREMIUM; w/Parking Sensors (2011-2013) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Regal BASE|CXL|PREMIUM; w/o Parking Sensors; w/o Tow Hook Hole (2011-2013) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Regal 4dr sedan (1995-1996) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Regal 4dr sedan; w/bright mldgs (1991-1994) Rear Bumper PUR or RIM (Urethane)
Regal 2dr coupe; except Gran Sport; w/o bright mldg (1989-1994) Rear Bumper PUR or RIM (Urethane)
Rendezvous (2002-2007) Front Bumper PP (Polypropylene)
Rendezvous w/proximity sensor (2002-2007) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Rendezvous w/o proximity sensor (2002-2007) Rear Bumper TPO or TEO (Thermo Plastic Olefin)
Riviera (1995-1999) Front Bumper TPO or TEO (Thermo Plastic Olefin)
Riviera (1989-1993) Front Bumper PUR or RIM (Urethane)
Riviera (1986-1988) Front Bumper PUR or RIM (Urethane)
Riviera (1989-1993) Rear Bumper PUR or RIM (Urethane)
Riviera (1986-1988) Rear Bumper PUR or RIM (Urethane)
Roadmaster 4dr sedan (1992-1996) Front Bumper PUR or RIM (Urethane)
Roadmaster 4dr wagon (1991-1996) Front Bumper PUR or RIM (Urethane)
Roadmaster 4dr sedan (1992-1996) Rear Bumper PUR or RIM (Urethane)
Roadmaster 4dr wagon (1991-1996) Rear Bumper PUR or RIM (Urethane)
Skylark (1996-1998) Front Bumper PUR or RIM (Urethane)
Skylark (1992-1995) Front Bumper PUR or RIM (Urethane)
Skylark (1996-1998) Rear Bumper PUR or RIM (Urethane)
Skylark (1992-1995) Rear Bumper PUR or RIM (Urethane)
Terraza upper (2005-2007) Front Bumper PP (Polypropylene)
Terraza w/121 inch wheelbase; U.S. market; w/o park sensor (2005-2007) Rear Bumper PP (Polypropylene)
Terraza w/121 inch wheelbase; U.S. market; w/park sensor (2005-2007) Rear Bumper TPO or TEO (Thermo Plastic Olefin)