Tech Tips: Mixing Hardener with Body Fillers and Glazes

Рет қаралды 29,308

Күн бұрын

Shawn Collins, 3M senior technical services engineer, demonstrates the proper ratio of hardener to body filler and how to mix them.
Important notes (00:40)
Wear proper PPE: safety glasses, protective gloves, respirator and whatever else you need for the job. This video is intended for a professional setting such as a body shop or paint shop.
Get your mixing ratio in the right range (01:19)
The proper ratio is 2% hardener for the weight of the body filler, but it can vary from 1.5% to just under 3% depending on the temperature in the shop.
Weigh out your filler and hardener every so often (01:53)
This can be a helpful spot check, especially when the weather changes. Shawn shows what 2% looks like for various amounts of body filler.
Best practices for hardener (04:25)
1. Knead it really well to keep it from being watery.
2. Use fresh hardener. Try to keep it with the can of body filler it came with.
3. Dispense a little onto a paper towel first in case it’s still watery.
4. Use the same brand for both (3M™ hardener with 3M™ body filler).
Shawn demonstrates weighing (05:26)
Best practices for weighing (06:21)
1. Always close the lid on the body filler.
2. Don’t put the hardener directly on the filler.
3. Don’t weigh out too much at once.
You can draw a pattern for future reference (08:05)
The 2% can be adjusted slightly (08:23)
You might use a little bit less in the summer and a little bit more in the winter, but stay in the 1.5% to under 3% range.
Best practices for mixing (09:04)
1. Mix, don’t stir.
2. Keep flattening, and push all the air out as you flatten.
3. When you’re done, spread it in a thin layer over the board to get more work time.
Shawn demonstrates mixing (09:31)
Important note:
There are of course many factors and variables that can affect an individual repair, so the technician and repair facility need to evaluate each specific application and repair process, including relevant vehicle, part and OEM guidelines, and determine what is appropriate for that repair.
Products used in this video:
3M™ Platinum™ Plus Filler 01131
www.3m.com/3M/en_US/company-u...
3M™ Cream Hardener
www.3m.com/3M/en_US/company-u...
3M™ Disposable Paper Mixing Board 20382
www.3m.com/3M/en_US/company-u...
For more advanced tutorials, check out 3M Collision Repair Academy
www.3m.com/3M/en_US/collision...
You’ll find courses that will expand your knowledge, deliver practical procedures that you can use right away, and, in many cases, earn you I-CAR credits.
Safety and Warranty Information
www.3m.com/3M/en_US/collision...
Website: www.3MCollision.com
Instagram: / 3mcollision
Facebook: / 3mcollision

Пікірлер: 47

@normgraham6658 3 жыл бұрын

I am using waaaaaaaaay too much hardener.... great video

@josephmyers1492 Жыл бұрын

FINALY a true way to determine the proper ratio. Thanks, you for your precision.

@edwardalamo2507 Жыл бұрын

A scale is expensive and not needed

@marksearcy9708 2 жыл бұрын

Excellent, the % was what I wanted to know.

@3MCollision 2 жыл бұрын

Hi Mark, we typically recommend 1.5-3% hardener to filler, with 2% (or 1:50) being the most common mix ratio.

@edwardalamo2507 Жыл бұрын

A measuring scope for filler please,then 3/4 to 1inch hardener

@nc240coupe Жыл бұрын

Being experienced and using 3m filler and glaze for the most part everyday for the last 13 years, I take into consideration the temps, but most importantly the size of the spread and the difficulty when I mix filler which is essentially no more than what he shows in this video, if anything I use a little less on big spreads to give myself plenty of working time but mix it thoroughly, not “stir” is, press out air pockets, and tight, thin spreads, I get complemented a lot on how clean my spreads are, and painters love them because they rarely have pinholes

@MrFireman164 3 жыл бұрын

Excellent!!

@georgelusaka9646 2 жыл бұрын

Awesome information

@ali-sleimanchehade6129 Жыл бұрын

Thank you for that video! Love it! Helps a lot 🙏

@douglasgallardojr4759 Жыл бұрын

This is a great informative video.

@fabe202 Жыл бұрын

Great presentation!!!

@ayame5887 Жыл бұрын

And just for the record I now understand the right ratio of using the hardner.

@ayame5887 Жыл бұрын

I have to give you Sir the thumbs up... Because everything that you are explaining in this video is very reasonable and understandable and you also touch base on every point OMG I have never in my life heard anything like this great job.

@dyingforpie6879 7 күн бұрын

Excellent video love 3m ( and not just because im from Minnesota 😉 ) i love the scale ideaand im betting alot of watchers are realizing they use way too much hardener- ive seen guys need 3 tubes per gallon - that scale will help . Thanks for the help.

@niazalsomai3526 5 ай бұрын

thank you for the tip

@timbartley5678 Жыл бұрын

On the 3 m sheets would be nice to see preprint colored coater on bondo to harder 3 to 4 different size like 4 6 or 8 inch then to the side harder lines

@deankay4434 2 жыл бұрын

The chemical reaction is exothermic, a process by which heat is created. I don’t live with math on the tip of my mind, unless my wife has the credit card. But using scales, 100 grams with 2 grams of hardener is 50 to 1. In this example, 50 grams with 1 gram of hardener is 2%. I do like the idea of placing the hardener next to the filler product as you have other things going on. A co-worker needs help installing a part, your name is called over the loud speaker as you have a call on line 3, or those times when nature calls, do to 4 cups of coffee! It all matters for a long lasting repair done right. Nice reminder of a basic function we take for granted! Thanks.

@santanagarza624 Жыл бұрын

Wow, I really need to rethink accelerence and hardener. My experience lies mostly in concrete but now I'm going to be less inept when it comes to adding calcium chloride, the correlation is crazy but now that I'm doing more Home Remodeling and repair this video will really help

@kennethugochukwu-cv5fi 7 күн бұрын

Please any tip on cream hardener production?. Any video link will greatly help me in this project

@douglasibarra4325 Ай бұрын

Now I am clear how the putty is worked.

@dausspraydausspray1138 Жыл бұрын

So great, i share yup..

@timbartley5678 9 ай бұрын

One other thing gussen weight the thickness on where you might be 1/2 filler on the board with a 4 inch puddle next time u might be thinker or thiner so that could be a difference in hardner

@mvadu Жыл бұрын

Why can't you just print that 2% by weight on the packaging.. Why write in terms of length of a cylinder for goopy thing!!

@boscomairena 3 жыл бұрын

👍

@jasirsofi3116 Жыл бұрын

Can we buy hardener tube seperately if finished ?

@JudoKnowles 2 жыл бұрын

I think you're better off shooting for 2% hardener at all Temps. It'll harden from what I've seen and heard but it may take longer if it's real cold.

@edwardalamo2507 Жыл бұрын

Why can't there be a measuring scope for accuracy

@raminnajibi8343 3 жыл бұрын

👍 🏎

@user-tl7hx2hw3i Ай бұрын

Use a peatbutter scope for better measurements

@timbartley5678 Жыл бұрын

Trouble i gauge the thickness to amount of harder makes a big difference on weight 50 to 1

@Mark-gg6iy 2 жыл бұрын

@5:22 "I like to dispense a bit of hardner at the beginning onto a paper towel" I understand why but if you have kneaded the tube properly why waste this? Using it from a paper towel is more difficult than need be. Apply it to cardboard that way if it's not watery you can scoop & use. Waste not want not. Good video, thank-you.

@douglasgallardojr4759 Жыл бұрын

The stuff on the paper towel isn't used - it's thrown away. Sometimes even after you knead the hardener some liquid stays in the hard plastic where the cap threads are and doesn't get mixed. There's not much to be done to avoid that, except maybe to mix your hardener before you add it to the filler.

@garybrady7245 Жыл бұрын

Wouldn't 2 percent be........2 percent instead of 7/8 of a inch lol like you put you the amount of filler you think you'll need and weigh it and then multiply that by .02 that will tell you how much hardener you need for your particular pile example say you have 32 grams of filler you would need 0.64 gram of hardener. 32 times .02 is 0.64. Would that be correct?

@evracer 3 жыл бұрын

I know this isn't exactly a rocket science thing....but you would think with the total brain power at 3M and all the container technology available.....that there would be an easier way to get body filler onto a board from a can and properly dose hardener in 2021.

@wildest8294 2 жыл бұрын

look at their Dynamic Mixing System, its a pneumatic gun that mixes the perfect amount of Part A & B in the nozzle and you can shoot it onto your board without having to mix it, also eliminates air bubbles completely

@scoobyg2396 2 жыл бұрын

2% by weight, why can't they just put that on the package along with their other instructions? Tare a scale with a plastic cutting board on it, 50 grams putty, 1 gram hardener, seems easy enough to do each time.

@xtreamcj3547 Жыл бұрын

Right… check out my comment to 3m about there mixing sheets and let me know if you think it’s a good idea.

@edwardalamo2507 Жыл бұрын

Needed like a ice cream scope then the bead