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Automotive Plastics/Questions

SubjectDate AskedExpert
Third brakelight plastice11/19/2012Octavio Torres
  Q: Octavio, A mechanic trying to lower the rear sunshade(the result of a faulty motor) on my car ...
  A: Your mechanic may be right. If this part was subject to photo-degradation, it is easy to verify: ...
Toyota Sienna - Broken Mirror Shell11/9/2012Octavio Torres
  Q: My 2004 Toyota Sienna XLE's driver side mirror has two plastic pieces broken out of it (see attached ...
  A: of course heat welding. these housings are normally made of : ABS, ASA, or Nylon it does not matter ...
custom plastic parts repair11/8/2012Octavio Torres
  Q: I'm Customizing a 2007 Mustang and when we replaced the hood we did not wand to drill into to ...
  A: I am 2.500 miles away from NY. I Ignore who can help you with this in your area. However if you ...
cracked headlight and moisture10/29/2012Octavio Torres
  Q: Suddenly I am getting condensation in my headlamp on a BMW 5 series from 2004 (E61). I suspect it ...
  A: You are right, the housing is made of >PP< which stands for Polypropylene, a thermoplastic polymer ...
Adhesive for use on car bumpers8/29/2012Octavio Torres
  Q: I want to be able to attached plastic LED signs like the one attached to auto bumpers. I can't ...
  A: there is no such adhesive to meet those requirements as far as I know. you may find a clear ...
red plastic lens stock7/11/2012Octavio Torres
  Q: Im trying to make custom tail light lenses and I need barrel shaped stock to cut a 6 1/2" X 2 1/2" ...
  A: tail light,side turn ligth and 3th brake light lenses are made from acrylic resin pellets, ...
DUCT ASSY, REAR VENTILATOR ORNAMENT, RH6/25/2012Octavio Torres
  Q: i'm looking for a DUCT ASSY, REAR VENTILATOR ORNAMENT, RH partnumber: 55870-95J01 for my Toyota ...
  A: I sincerely regret not being of help to you in your search to find that part (I am not a part ...
Rear windshield 3rd Brake Light5/30/2012Octavio Torres
  Q: please could you advice me on which type of adhesive to use to re-attach the black plastic 3rd brake ...
  A: plastic and glass are both low energy materials and difficult to join strongly in the interface. ...
plastic adhesive4/16/2012Octavio Torres
  Q: How can I re-attach a plastic stud broken from the cover below the glovebox in my 2007 Honda, ...
  A: >PP< (Polypropylene). There is no adhesive for PP. As explained in past posts the only effective ...
repairing/replacing plastic studs4/6/2012Octavio Torres
  Q: What is the correct adhesive to re-connect a broken plastic stud on a 1984 corvette upper inside ...
  A: I never make use of any adhesives nor glues to repair or replace a broken stud. by experience I know ...
plastic housing cracked on side mirror1/18/2012Octavio Torres
  Q: My nmae is Robert. I have a 99 Chevy S10. It came with aftermarket Sport Scene mirrors on it. The ...
  A: Those housings accept neither adhesives nor glues that may be worth trying. Instead, I would try ...
plastic types12/5/2011Octavio Torres
  Q: i know there are 3 types of plastic that bumper covers are made of. what are they and how do i ...
  A: bumpers are made of: >PP< polypropylene, TPO (THERMOPLASTIC OLEFINE),TPU (THERMOPLASTIC URETHANE,PU ...
headlamp housing11/23/2011Octavio Torres
  Q: Two curiosties, what type of plastic makes up the "back half" or housing side of the assembly? When ...
  A: headlamp manufacturers use >PP< polypropylene plus a reinforcing load >PP+T20< for instance, the T20 ...
Volvo Reservoir tank10/24/2011Octavio Torres
  Q: I was told I have a seep in the plastic overflow tank of the radiator in my 2001 Volvo and that is ...
  A: one thing is an overflow tank and connected to it by a rubber hose, a radiator. These two parts are ...
adhesive5/16/2011Octavio Torres
  Q: Is there an adhesive or plastic welding that will bind two pieces of plastic together? I tried ...
  A: there may be one at least or a method to weld them either chemically or by thermal fusion. However, ...
honda headlights5/14/2011Octavio Torres
  Q: I drive a s2000 2004 I have noticed the plastic that surrounds the headlight is coming off. I took ...
  A: Fran, if the problem is with plastics, there must be an affordable a solution. I ignore the type of ...
Dashboard coverstock material identification5/7/2011Octavio Torres
  Q: Octavio I am restoring a 1973 Datsun 240z and planning to repair the damaged dashboard. I have ...
  A: That skin in made of >PVC< and the foamy substrate of Polyurethane. I ignore what tradenames are ...
Cracked screw post4/2/2011Octavio Torres
  Q: Have had difficulty replacing damaged right rear tail light of 94 Buick LeSabre Ltd. After several ...
  A: the best way to repair a broken post whether severed from the very base or in a low place near of ...
Plastic trim repair '87 BMW 325i3/10/2011Octavio Torres
  Q: I need to modify the trim around the factory stereo by glueing strips of plastic to the existing ...
  A: I think we will need to take some pictures of the trim , an explanation of the kind of modifications ...
Mazda 626 interior fabric on door panel is loose1/24/2011Octavio Torres
  Q: I have a 2002 Mazda 626, 4 door, with leather interior. Since the first year I had the car the ...
  A: Using adhesives to join polymer (plastic) surfaces sometimes is hard to deal with. Therefore, we ...
Taillights lenses1/23/2011Octavio Torres
  Q: I have a classic truck and cant find a indicater lense. I have the left side one. How do i go about ...
  A: there may be a chance to make the other side lens but I need some pictures of the one available. ...
how to paint auto acrylic1/10/2011Octavio Torres
  Q: what product would i use to put a clear coat on acrylic tail lights? also, when i dissolved the ...
  A: I have never painted acrylic lenses but as with any other paintable polymer, you must degrease the ...
plastic repair1/3/2011Octavio Torres
  Q: I have a 2004 silverado ext. cab 4x4. On the inside of the door trim panel there is a bracket ...
  A: The markings you found may indicate that the external side is made of integral skin (PVC) and the ...
1989 VW Golf tail light project12/24/2010Octavio Torres
  Q: i am cutting apart a few sets of jetta tail lights to make a custom set that resemble old rabbit ...
  A: sorry for this christmas delay. I think your light housings are not coded for polymer ...
2002 Mazda 626 turn signal cover/lens glue12/17/2010Octavio Torres
  Q: As I was brushing some ice off of the right turn signal lamp the lens/cover fell off. Can I glue it ...
  A: To join the the two parts, get some methylene chloride. wet the broken places, press them both and ...
methylene chloride11/18/2010Octavio Torres
  Q: I've not been able to find this. Can you tell me what product to look for, where?
  A: this is sold under the name:acrylic cement by tap plastics: ...
How to fix a rear view mirror with a plastic button?9/11/2010Octavio Torres
  Q: My rear view mirror fell off my windshield and I tried to fix it by buying a rear view mirror repair ...
  A: plastics are low energy substrates to accept any adhesives,in fact adhesives rarely work well in ...
Automotive Plastic Panel Repair8/1/2010Octavio Torres
  Q: Trying to determine how to repair cracked automotive interior plastic panels. There are know marking ...
  A: If your car was made after the year 2000, there must be an identification code somewhere in the ...
Lens on Taurus 3rd brake light6/2/2010Octavio Torres
  Q: The shortcan you advise me on an adhesive to attach the plastic lens housing onto a 3rd brake light ...
  A: you are right. Methylene chloride is de proper adhesive. This substance is a water-like liquid which ...
Rear view Mirror - button glued into mirror assembly5/11/2010Octavio Torres
  Q: The mirror fell off of the window. The metal "button" that needs to be treated and re-glued to the ...
  A: Most rear view mirrors attached to windshields do not use any glues in the button assy. However, ...
repairing interior plastic4/2/2010Octavio Torres
  Q: As we were loading something into our Equinox, it scraped along the inside of the back plastic by ...
  A: Polypropylene interior trim and panels, like those in the Equinox can only be painted for ...
Affordable reproduction of tail light lenses2/12/2010Octavio Torres
  Q: Octavio, In an answer dated 1/28/2009 you answered a query on reproducing tail light lenses. In ...
  A: Unfortunately, I need the help of a busy neighbor and colleague who owns a tail light repair shop to ...
auto body glue1/31/2010Octavio Torres
  Q: While travelling about 40 mph in my 2003 Jeep Liberty, I was side-swiped (hit-and-run) by a driver ...
  A: There is no glue nor any adhesive to replace your metal or plastic fasteners. my suggestion for you ...
CRV Mirror Base Repair1/19/2010Octavio Torres
  Q: Torres The base plate which supports the mirror assembly (see picture:horizontal part with 4 large ...
  A: to exactly determine what plastic the base is made of ,you have to take the base off the door. to ...
Broken LH mirror housing/91 Honda prelude1/13/2010Octavio Torres
  Q: Someone knocked my driver side mirror off..seems to be broken at the base..otherwise the assembly ...
  A: almost always we get dissapointed when trying to fix plastics with adhesives. This is due to the ...
cracked Sprinter rear A/C housing1/4/2010Octavio Torres
  Q: The rear A/C housing on my Dodge/MB Sprinter passenger van is made of a rigid, gray unpainted and ...
  A: I have repaired many AC housings and found ALL were made of Polypropylene. I think your's must be ...
98 honda prelude rear-view mirror housing1/3/2010Octavio Torres
  Q: okay i bumped my mirror off the mount and im trying to figure out if i can take the mirror housing ...
  A: sorry for a late answer (health has not been o.k. these days. but now in the up &up) I understand ...
Broken tail light lens..12/19/2009Octavio Torres
  Q: I was wondering if I could glue the tail light lens on my 03 Alero. Someone bumped my car and broke ...
  A: tail light lenses are made of >PMMA< , which stands for polymethyl methacrylate, a plastic that can ...
ABS plastic sheet11/28/2009Octavio Torres
  Q: I have a bowler tomcat off road race car that I am renovating. the pick up sides are flat aluminium ...
  A: you are right. ABS is not the best polymer for this application. Despite having butadiene (a rubbery ...
plastic headlight lense11/24/2009Octavio Torres
  Q: Why do the lenses get milky/cloudy? Can it be cleaned? Seems to be common in late 90's to early ...
  A: lenses get dull for various reasons including: photodecomposition, micro-chipping because of gravel, ...

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Automotive Plastics

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Octavio Torres

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Expertise

I can answer any question concerning automotive plastics repair on condition that the specific part polymer is identified. However, I can also help in the identifying process of any plastic used in automotive applications (for both body work and under-the-hood). I can't answer a question if it is based only on make or model unless full details are provided.

Experience

Two decades working as automotive plastic repairman in my own business

Publications
THE INTERNATIONAL AUTOMOTIVE PLASTICS REPAIR MANUAL

Education/Credentials
Plastics technician.

Past/Present Clients
BMW

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