trizact ????? who is using them ?
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Hey guys ,
I am still doing the old method of flattening by hand and if i am doing show cars i rip it down with 1000 ,1200,1500,2000 then 3000trizact But this takes hours sometimes days
everyone i speak to tells me to hit it with 1200g blocking then 1500trizact da then 3000 trizact da
they also said i can use my palm sander even tho it has a larger orbit ?
just looking at this from a productive mesure
how dose this sound ??
tommy
From a production point of view – you don’t want to be doing anything by hand that a machine can do 😉
I’ll hit any large chunks of dirt with a 1200 on a palm sander then refine with a 1500. If there’s a bit too much peel I’ll go over the whole panel with the 1500. I switch brands a bit, but at the minute I’m using Mirka Q Silver 1200’s, and 3M 260L 1500 discs.
I’ll then refine the surface with a Mirka 2000 Abralon disc before buffing, but again, I may be swapping back to 3M and the 3000 Trizact for that stage.
It’s certainly much much faster than doing it by hand, without too much loss in quality. I wouldn’t do it that way for a show car that wanted to be perfectly flat, but then such a finish would look out of place on a “regular” job anyway.
We do have a small orbit Mirka palm sander (2.5mm), but their regular 5mm orbit ones are fine for the job, and a little quicker.
Just make sure you clean the surface before moving to a finer grit, so you don’t get pigtails.
cheers andy ,
i was thinking knocking panels flat with say 1000 by hand then 1500 tri then 3000 tri
do you think the results would be good ? or maybe get 1200 discs too?
also how many discs would you use on a full car?
That would get the finish flatter, but it’d be too much for my liking on normal stuff as it’d be flatter than the factory finish on the non painted panels.
The 3M 1500 discs last quite well. 1 generally does a full front end, so probably 4 for a full car, although if you’re trying to remove 1000 grit linear sanding marks you may need a couple more as it’ll take a bit more effort. I’ve done 1200 hand to 1500 disc before, and that seems to work OK.
Abralons are about the same, but Trizact seem to last much longer
[quote=”turbo t” post=20782]cheers andy ,
i was thinking knocking panels flat with say 1000 by hand then 1500 tri then 3000 tri
do you think the results would be good ? or maybe get 1200 discs too?
also how many discs would you use on a full car?[/quote]
I have tried them all, but still revert to flatting by hand, but i would maybe do it different if i was working on show cars .
Consider trying Sia velvet discs i am sure they go all the way up too 4000.
They are very well padded if you soak them in water then squeeze the excess out they last about twice as long, also using them damp with water reduces the cut, thus making the finish even finer, therefore easier to polish.
I use the Norton system and a Hutchins water bug DA with intermediate pad and get fantastic results. I hit it with 1000, 1500 then 3000. I then rub it out with the Farecla compound products. I know everyone has their own system. This works great for me on big buck paint jobs that require a killer finish. Careful not to get any dirt between the pad and the finish or you’ll leave some nasty DA scratch tracks. Use plenty of water and flush frequently.
I start off with 3m 1500 finishing film with an interface pad. Makes it real easy to find any imperfections, blow it off with a blower then hit my nubs with 3m 1000 without an interface pad, ( I find with the 1500 it wont cut the nub out flat enough) Then I will chase it again with the 1500/interface combo. On darker colors I will use 2000 Abralon pad ( I think that it eliminates any random pigtails) then go to 3000 Trizact. I like how the Trizact will foam up when it is cutting, lets you know when to get a new one. And recently we have switched to the Mirka Compounds. The C20 cuts real nice and quick and finishes out nice. Find that it dont have alot of fillers that trick you into thinking that it is buffed up.
turbo, that is my procedure exactly for every part that goes out of the shop. 1000, 1500 then 3000 trizact. all done with a da. for regular collision work andy is right that it gets the finish too flat. if you want that perfect smooth finish though then that is the procedure you want to use. dont bother with 1200 or 2000 or any grit in between as it will be a waste of time and not needed. it should be a very fast system. the last complete car i did was a 78 vette. did the whole thing and from 1000 to final polish was 6 hrs.
[quote=”turbo t” post=20780]Hey guys ,
they also said i can use my palm sander even tho it has a larger orbit ?
tommy[/quote]
You should try and use a sander with an orbit no bigger than 5mm, there is no need to go all the way down to a 2.5mm orbit.
:pcorn: Paying attention to this one…I have to polish nibs out of everything I paint unless it’s something that I don’t care about and it turns out fine :whistle: . What polishing system is the “best”? I’m using Norton Liquid Ice right now and find that it has some oils or something in it that makes me think it’s time to move on to the next stage of polishing only to find out later that I’ve got to do it again as the gloss washed off :huh: . I’m using 3M (purple bottle) for final finishing on dark colours.
well today i went out and bought 3m 1200paper to block the car down box of 1500 c/c sanding discs trizact and 3000 trizact
also bought 3m fast cut with green pads 3m perferct it with yellow pads and 3m holigram/swirl remover with blue pads and chucked some black pads in there too lol
and you could say i came home alot lighter in the pocket lol
i will do a test panel tomorrow and let you know how it goes
I was using them for a bit but found I usually failed to completely remove the 1500 scratches with it so it never really saved me any time!
just a little tip. i have found most guys, me included tend to overuse the discs. since they are foam its really hard to tell when they stop cutting. when they are half wore out you end up in a situation like jimmo. took me quite a while to get the feel for the discs and get the hang of them. average lifespan for a disc is maybe a small door and hood or 2 larger doors. beyond that they start to just polish instead of working out the 1500 scratches. problem is they still leave a foam on the surface so you think they are still cutting. if you change the disc often enough they take out 1500 grit scratches pretty quick and you sould be left with a really nice finish that will buff right out.
Ive always thought 1500 to 3000 is a bit of a big jump up the grits, Im sure trizact makes 2000, but i rarely see people use it, usually go right from 1500 to 3000. I dont do much polishing anymore, myself.
Just a thoughtFor regular paper or wet/dry it is too big a jump but trizact is a totally different technology. With a good disc it really cuts 1500 grit out quite fast. Like i said they take a bit of getting used to but when you get the whole sysyem down it works fantastic.
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