need help for bondo shit

[drftwerks]

do i need to use the hardener? does that quicken the hardening time? can i use it w/o harderner so i have more time to work with it?

thanks
Bryon

[japslapsilvia]

no u need the hardner...the more hardner u use the faster it will harden, if you are using bondo brand regular filler, the one that comes with the red hardner...u want to mix it till its a pink/salmon color...the same color as the spreaders they sell....and as long as it not 80+ degrees outside u will have plenty of time to work with it...

[95Kouki]

step away from the bondo buddy...lol...you will need the hardener....otherwise u get a clay like mush that you can not sand and will not stick...

[wiggafly808]

You need the hardener.

Put about an inch of the hardener per golf ball sized bunch of bondo you use.

Mix it together well so that its all one color, then use a spreader to put it on smoothly, try not to make bubbles. It should be hard to the touch within 10 minutes or so, depending on how much hardener you put. Wait a couple hours then you can start to sand.

Make sure you sanded all the paint/rust/whatever off the surface youre putting the bondo on or it'll just peel right off.

[DataXUnknown]

be sure to put the correct amount of hardener. if your unsure, put more hardener in. i just did some bondo to my fender, didn't use enough hardener so it was just squashy and hasen't dried for a week. had to scrape most of it off and do it again.

[thejapino]

A quick rule of thumb I learned is:

1) lay out your bondo like it was a pancake

2) squeeze a line of hardener across the pancake once

like the sign (the red part, not the smoking):
https://hawaiismokersalliance.com/images/bantheban.jpg

Go from there and play with different amounts of hardener until you come up with something you're comfortable with. Weather/humidity/heat/your skill level all affect how much/little you'll need.

G/L

[Addicted2Kouki]

Its supposed to be.... 2% hardener.


Only time to add more is if its too cold for it to dry normally.

[PhAtXSuMo]

yes u do need the hardner!!!

i would just use the plastic top which is the mixing cup i believe

put some of the bondo in it

and eye ball the hardner until u get that salmon color that JapSlap was talking about

and then u should lay it on let it dry...

than sand it

my first time using bondo i fucked up.... i just put all of the hardner in the can stirred it and all of a sudden my mixing tool got stuck in like 10 seconds lmao

[infinitexsound]

take it from someone who has done autobody for 8 years and going....

u need about 1/10 of cream hardner... the less u put the more time u have to spread the bondo

if u use the method by just running a line across the bondo... then chances are u have about 2 min of work time with the putty... u just need a tint of hardner just the change the color, but not drastically.... as long as u mix thorough itll get hard..

tools u would need for a good bondo spread..

1/4" plexi glass sheet
a pretty wide metal putty knife to work in the cream hardner
red scotch brite
some thinner to clean tools after ward
and a good clean spreader..

people forget that a good spread involves a good spreader, if u have a unclean one it leaves ridges in the bondo when u spread it.when mixing avoid creating bubbles because thats just more pockets to fill after ward. and involves filling them with a small razor blade.... instead of using a spreader.. which fucks up your job. personally i hate using bondo the brand it sucks ass seriously,, use Evercoat http://www.evercoat.com/imgs/products/Rage%20Gold.jpg or 3M. theres an additive to the body filler that i love and swear by it also.. it called supercharger.. it helps with spreading because it makes the body filler really slick and smooth.. and eases up on blocking time.. because the bodyfiller becomes less dense...http://www.uschem.com/products/lg_image/body_filler_super_charger.jpg
when done spreading... give it time to set... but not too long... so itll be easier to knock it down... ill save the next post for sanding..

[ayuaddict]

yes, evercoat works dope as fuck.

also, regardless of how careful you are, you will most likely get bubbles, and most fiberglass also has little tiny bubbles in it which will become apparent after sanding, so pick up some spot putty which will help a bunch in filling those in.

[Addicted2Kouki]

take it from someone who has done autobody for 8 years and going....

u need about 1/10 of cream hardner... the less u put the more time u have to spread the bondo


take it from the manufacturer and new product development...

http://evercoat.com/faq.aspx

Q. How much cream hardener should be used to activate body filler? (http://javascript%3Cb%3E%3C/b%3E:__doPostBack%28%275$questionLB%27,%27%27%29)
A. Add a ribbon of cream hardener from edge to edge across the center of a 4" diameter puddle of filler (2% by weight). Puddles larger than 4" in diameter will require addidtional hardener. (http://javascript%3Cb%3E%3C/b%3E:__doPostBack%28%275$answerLB%27,%27%27%29)

straight from evercoat's website.

it may have been 1/10 of hardener 8 yrs ago... but nowadays its only 2%.

[JDMSTYLE]

use hardener! dont be scared to use excess hardener, if you dont have enough hardener it will not harden the bondo causing soft spots. remember practice makes perfect so just keep practicing.
dont be scared to make mistakes you can just sand it off and redo.

[infinitexsound]

yeah apply one line across and tell me how much time u have to work with it... chances are u have like a 2 min window or less... take it from someone who has been doing bodywork for 8 years... u dont need all that much... quit trying to justify yourself with excerpts from the manufactures webpage.... if you never done any major bodywork your self...jack ass

[Addicted2Kouki]

yeah apply one line across and tell me how much time u have to work with it... chances are u have like a 2 min window or less... take it from someone who has been doing bodywork for 8 years... u dont need all that much... quit trying to justify yourself with excerpts from the manufactures webpage.... if you never done any major bodywork your self...jack ass

Everything you stated is true.
but if you say 1/10..
The person not knowing how much to put,
might put too much and have an even smaller window to apply the bondo.

I do body work myself FYI.
I also paint cars. [email protected]
I was taught... 2% by weight.

I was telling you that you were right, I just thought you were going to be putting too much when you said 1/10

[hey808]

I've seen where they will mix fiberglass resin with body filler to make a more creamy mixture as a top coat. I've worked with fiberglass, and with body filler, but not the 2 together like that. Why do they do that (pros/cons)? What ratio of each is ideal, and what is used as the hardener with something like that?

[japslapsilvia]

I've seen where they will mix fiberglass resin with body filler to make a more creamy mixture as a top coat. I've worked with fiberglass, and with body filler, but not the 2 together like that. Why do they do that (pros/cons)? What ratio of each is ideal, and what is used as the hardener with something like that?

from what i understand you can use it as a "glaze" for filling in pinholes

[infinitexsound]

then u can chime in on how the block bondo.... since u got that credentials...

[thejapino]

Cheese grater fun! Feels like hard gum!

[TOMKAIRA93]

like someone else already said, stay away from the BONDO brand. I'd recommend Rage Gold...its so easy so sand off and easy to apply. I used it on my 240 and it came out great! Good luck!