What is the Difference between RUSTPROOFING & UNDERCOATING?

[Salanguit]

Hello,

Been reading comments about undercoating. Parang most of the comments suggest that newer cars hindin nmn need masyado ng undercoating since treated na yung mga metal. Question gaano katagal na pwedeng ganon yung sasakyan, at kelangan bang kinakawalang naba yung ilalim bago lagyan?

Another question is, if newer car cars dont need much of an undercoating, pano lilinisin or i-iliminate yung parang mga natuyong grease, mud dun sa coil spring, sa mga axle, etc. Yung saken napansin ko may mga dots or patches ng parang kawalang. Pano linisin yon. Mas okay ba kung paint tlg gagamitin kung medyo bago pa sasakyan?

[dr. d]

Hello,

Been reading comments about undercoating. Parang most of the comments suggest that newer cars hindin nmn need masyado ng undercoating since treated na yung mga metal. Question gaano katagal na pwedeng ganon yung sasakyan, at kelangan bang kinakawalang naba yung ilalim bago lagyan?

Another question is, if newer car cars dont need much of an undercoating, pano lilinisin or i-iliminate yung parang mga natuyong grease, mud dun sa coil spring, sa mga axle, etc. Yung saken napansin ko may mga dots or patches ng parang kawalang. Pano linisin yon. Mas okay ba kung paint tlg gagamitin kung medyo bago pa sasakyan?

rustproofing is a lot better now than 35 years ago.
my car is 13 years old, and it still hasn't got a spot of rust anywhere in its body.

the better rustproofing is perhaps done in the factory, during assembly.
the metal may be electroplated.
the paint is specialized.

ex-factory rustproofing might help, but it is far inferior to that in the factory.

undercoating is simply, an additional layer of thick paint under the car. its usefulness is argueable. google it, sir, for pros and cons.

how to clean the underside? a strong stream of water or steam, etc like manual manipulation.

small dots of rust on the heavy metal suspension parts underneath, is something i would not worry over. either it will need replacement thru wear and tear, long before rust becomes an issue, or retired na ako, ok pa yung piyesa...

the secret in fighting rust, is to have the offending spot cleaned of rust and re-painted asap.

[urbanmetal]

does scraping from speed bumps cause rust proofing issues?

[falken]

does scraping from speed bumps cause rust proofing issues?

If the primer gets scraped off, yes.

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[Salanguit]

rustproofing is a lot better now than 35 years ago.
my car is 13 years old, and it still hasn't got a spot of rust anywhere in its body.

the better rustproofing is perhaps done in the factory, during assembly.
the metal may be electroplated.
the paint is specialized.

ex-factory rustproofing might help, but it is far inferior to that in the factory.

undercoating is simply, an additional layer of thick paint under the car. its usefulness is argueable. google it, sir, for pros and cons.

how to clean the underside? a strong stream of water or steam, etc like manual manipulation.

small dots of rust on the heavy metal suspension parts underneath, is something i would not worry over. either it will need replacement thru wear and tear, long before rust becomes an issue, or retired na ako, ok pa yung piyesa...

the secret in fighting rust, is to have the offending spot cleaned of rust and re-painted asap.

Hello Sir, just a follow up here.

You mentioned "heavy metal suspension parts underneath", since 4 years na yung unit ko, napansin kong may mga kalawang na yung hub or yung kinakabitan ng mga gulong(not sure exactly kung anu tawag sa kanila), and yung axles, parts nga ng suspension and some metal parts underneath. Sa pagkakaalam ko, hindi nmn naa-undercoat tong mga parts na toh. ibig sabihin ba na repaint ang gamot? san may nagpapaint ng mga parts na to?

I ask several shops dito sa may malapit sa cash n carry makati, lahat sila ang sagot eh "baka undercoating sir?" in which gusto ko sana paint tlg, particluarly sa mga parts mentioned.

[dr. d]

Hello Sir, just a follow up here.

You mentioned "heavy metal suspension parts underneath", since 4 years na yung unit ko, napansin kong may mga kalawang na yung hub or yung kinakabitan ng mga gulong(not sure exactly kung anu tawag sa kanila), and yung axles, parts nga ng suspension and some metal parts underneath. Sa pagkakaalam ko, hindi nmn naa-undercoat tong mga parts na toh. ibig sabihin ba na repaint ang gamot? san may nagpapaint ng mga parts na to?

I ask several shops dito sa may malapit sa cash n carry makati, lahat sila ang sagot eh "baka undercoating sir?" in which gusto ko sana paint tlg, particluarly sa mga parts mentioned.

undercoating is usually done on the car's sheet metal and "chassis".
suspension parts, steering and brake parts are usually not undercoated. napaka-kapal ng metal na yan. even if it started rusting, the metal is so thick, it won't weaken the part significantly during the entire lifespan of the part (or the car!).
personally, i'd get slightly worried if the axle rust shows pitting already. in which case, i'd just clean it with wire brush, turco it, then hand-paint with whatever fancy color strikes my fancy. but black is my default color. heh heh. it's DIY-easy, sir. and the part is built to take punishment. you can't harm it, even if you wanted to.

i know of some folks who will have their car's underparts painted, but these are more for aesthetic purposes, and not for longevity.

one notices, today's cars are so well-made and factory rust-proofed, hardly any rust, even after a decade on the road.
just looking around on the road, rust-free 20-year-old cars are common. corolla XE.. XL.. gli... sentra EX.. SS..

[Salanguit]

undercoating is usually done on the car's sheet metal and "chassis".
suspension parts, steering and brake parts are usually not undercoated. napaka-kapal ng metal na yan. even if it started rusting, the metal is so thick, it won't weaken the part significantly during the entire lifespan of the part (or the car!).
personally, i'd get slightly worried if the axle rust shows pitting already. in which case, i'd just clean it with wire brush, turco it, then hand-paint with whatever fancy color strikes my fancy. but black is my default color. heh heh. it's DIY-easy, sir. and the part is built to take punishment. you can't harm it, even if you wanted to.

i know of some folks who will have their car's underparts painted, but these are more for aesthetic purposes, and not for longevity.

one notices, today's cars are so well-made and factory rust-proofed, hardly any rust, even after a decade on the road.
just looking around on the road, rust-free 20-year-old cars are common. corolla XE.. XL.. gli... sentra EX.. SS..

good read Sir, salamat.

So I can sleep well then :-). I suppose my lifter kayo since madali sa inyo mag DIY. Maybe i'll buy at least the jack stand so I paint it myself as well. I really wanted it to reain it's sleak black color lang like nung bago. Since taga province ako, talagang napapasabak sa bato at putik yung ilalim tuwing uuwi ako. So it all started to rust from there siguro. Thank you sa advise Sir.

[boyksworld]

undercoating covers only the underside of your vehicle while rustproofing protects the panels (doors, fenders , etc.) of it. rustproofing involves the coating (injection) of chemicals to the backside of the panels. ziebart and tuffcoat dinol are the leading rusproofing companies in the phil. the caltex station along pedro gil street in paco is the leading undercoating specialist this side of town. have you considered electronic rusproofing?

sir idol good day. kukuha po ako ng mitsubishi mirage g4 2018 MT, approved na po car loan. then sabi ni dealer mas maigi daw mgparustproofing and paint protection daw ako kasi malapit bahay namin sa dagat..10k po lahat. 6k sa rustproofing at 4k paint protection. pde po bang humingi sa nu ng opinyon..salamat po.

[boyksworld]

undercoating covers only the underside of your vehicle while rustproofing protects the panels (doors, fenders , etc.) of it. rustproofing involves the coating (injection) of chemicals to the backside of the panels. ziebart and tuffcoat dinol are the leading rusproofing companies in the phil. the caltex station along pedro gil street in paco is the leading undercoating specialist this side of town. have you considered electronic rusproofing?

kasi may nababasa po ako mga reviews na di namn tlaga kailangan ng rustproofing kasi nka rustproof na daw ngayon mga bago sasakyan? pero i considering dn po na malapit sa dagat ang bahay namin..what do u think po.do i need to have rustproof..

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undercoating covers only the underside of your vehicle while rustproofing protects the panels (doors, fenders , etc.) of it. rustproofing involves the coating (injection) of chemicals to the backside of the panels. ziebart and tuffcoat dinol are the leading rusproofing companies in the phil. the caltex station along pedro gil street in paco is the leading undercoating specialist this side of town. have you considered electronic rusproofing?

kasi may nababasa po ako mga reviews na di namn tlaga kailangan ng rustproofing kasi nka rustproof na daw ngayon mga bago sasakyan? pero i considering dn po na malapit sa dagat ang bahay namin..what do u think po.do i need to have rustproof..

[travajante]

Today's cars are pretty well-protected against corrosion. Some underbody & suspension parts may be exposed. If you feel you must, get this product & just spray away....

FLUID FILM | Powerful Corrosion Protection & Lubrication
https://www.amazon.com/Fluid-Film-TP.../dp/B00B93ZXGS
Don't do the messy bitumen.

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