1971 VW Type 3 Fastback

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broady_6
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Re: 1971 VW Type 3 Fastback

Post by broady_6 » 23rd July 2019 - 9:32pm

Well a little update. Ive been enjoying having a summer more than anything this year. Weekends away experiencing things ect and generally being outside. It has been a nice change. In the last couple of weeks ive taken a look at the car again.

Little jobs like finding the right size c clip, ordering and fitting one to the end of the speedo cable. Satisfying

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The sad news is the nylon insert in the knob didnt last, It obviously stressed the plastic and its cracked. Luckily I got myself a second knob with threads in. It was cleaned and installed.

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One or two other small jobs have been are being tinkered with. But I shall return to those.

My main focus while its been well over 25c is paint work. So who can help this bear of small brain? I seem to have the hang of the actual machine polishing, I can shine it up with out generating swirls. But I seem to fail at colour sanding. As you can see in the shot with the flourecant tube, there's a number of small scratched. I have been using 1500g on a soft flexy pad. With a hose pipe running and ocassional rubs of soap on the 1500 to stop the paint sticking. I use a light pressure and work the area for a short period Rather than a few hard firm strokes.

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I can get finishes like this to the cameras eye.

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So, why so scratchy? What monkey no do right?
The sultan of swing

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937carrera
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Re: 1971 VW Type 3 Fastback

Post by 937carrera » 23rd July 2019 - 10:46pm

I did not see any mention of what compound you are using, or are you still on wet'n dry. I have some Farecla g3 for the initial cut, followed by g10 for the polish ??
Last edited by 937carrera on 24th July 2019 - 12:10am, edited 1 time in total.
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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broady_6
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Re: 1971 VW Type 3 Fastback

Post by broady_6 » 23rd July 2019 - 11:02pm

I use G3 for the course cut and G10 for the final finish with the farecla sponges
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937carrera
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Re: 1971 VW Type 3 Fastback

Post by 937carrera » 24th July 2019 - 12:15am

Blind leading the blind here then, at least you can remember which does what. I have corrected my post above to avoid confusion.

I had a scratched Polo last weekend on the C post. A bit of G10 and slow speed mop cleaned it up nicely. No water and no mess,

I think monkey needs to ask his mate with customised bugs, but I don't think you should be using paper at this stage :?
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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Marko
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Re: 1971 VW Type 3 Fastback

Post by Marko » 24th July 2019 - 8:59am

you need to go finer than 1500 really and get those swirls out, colour sanding is an art in itself, best done a day or 2 after painting before the paint sets like concrete! (2 pack anyway).

try doing black, that is a pain!!
my 1968 Fastback Automatic build thread
viewtopic.php?f=4&t=6896

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broady_6
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Re: 1971 VW Type 3 Fastback

Post by broady_6 » 24th July 2019 - 9:13am

Fortunately the swirls aren't too bad. It's the sanding marks I'm struggling with. You make a good point though, I'm using celly rather than 2k. So it's much softer.

All the guides online say I need to be colour sanding it to remove the peel from my dodgy painting. Those scratch marks too much courser than 1500 tome though?
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937carrera
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Re: 1971 VW Type 3 Fastback

Post by 937carrera » 24th July 2019 - 9:16am

As I said, this is not an area where I have any great knowledge, but I was also thinking that 1500 was too coarse and more wondering why you need to use such an abrasive method on fairly fresh paint. It's not as though you have washed and polished the car with a grit encrusted sponge.

Is this of help ?

https://www.detailingworld.co.uk/forum/ ... p?t=277042

The Polo I was talking about was metallic black, so I appreciate the challenge of that colour
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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Marko
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Re: 1971 VW Type 3 Fastback

Post by Marko » 24th July 2019 - 9:29am

if it's celly it should be quite easy to buff out? I used to use 1200 on celly and simply buff out with compound, don't use wet and dry in a circular motion either, that will pronounce the flatting marks! if the swirls only came after machining then you're possibly using the wrong mop, I suggest a sponge head of medium hardness for an all in one solution.
my 1968 Fastback Automatic build thread
viewtopic.php?f=4&t=6896

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broady_6
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Re: 1971 VW Type 3 Fastback

Post by broady_6 » 24th July 2019 - 9:41am

The marks are showing up after colour sanding, Had a quick read, so maybe 4000? Though marko says 1200 and the guides id previously read say 12-1500. G3 even states it will remove 1500 grit marks.

Im using https://www.ebay.co.uk/itm/1-X-FARECLA- ... SwLilakvwN

That sponge. for G3 and the black for G10.

The marks are definitely straight lines as you can see in the photo. So I'm sure its a sanding issue rather than polishing.
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Marko
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Re: 1971 VW Type 3 Fastback

Post by Marko » 24th July 2019 - 12:59pm

some marks look a bit swirly, should be OK with that sponge, may be just a case of going over it again, 3000 grit shouldn't hurt the paint and would be easier to polish out..
my 1968 Fastback Automatic build thread
viewtopic.php?f=4&t=6896

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broady_6
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Re: 1971 VW Type 3 Fastback

Post by broady_6 » 24th July 2019 - 2:30pm

You've got a better eye than me! Would you say straight to 3000 or 2000 first?
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Marko
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Re: 1971 VW Type 3 Fastback

Post by Marko » 24th July 2019 - 2:32pm

broady_6 wrote:
24th July 2019 - 2:30pm
You've got a better eye than me! Would you say straight to 3000 or 2000 first?
2000 should be fine on celly
my 1968 Fastback Automatic build thread
viewtopic.php?f=4&t=6896

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937carrera
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Re: 1971 VW Type 3 Fastback

Post by 937carrera » 24th July 2019 - 2:38pm

I would have said go to 3000, and if you need to be more aggressive you can always go to 2000 ???

..... but you guys have more experience than me
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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broady_6
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Re: 1971 VW Type 3 Fastback

Post by broady_6 » 24th July 2019 - 5:45pm

It has been suggested that It could well be scratches in the primer rather than the paint. And im just revealing them.
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937carrera
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Re: 1971 VW Type 3 Fastback

Post by 937carrera » 24th July 2019 - 5:55pm

broady_6 wrote:
24th July 2019 - 5:45pm
It has been suggested that It could well be scratches in the primer rather than the paint. And im just revealing them.
:tear: Oh, that wouldn't be good news, but if you used cellulose paint then there isn't a clear lacquer to show scratches in the colour layer underneath is there. Maybe I just don't understand - I know you wrote primer, but I would have though the topcoat would have covered that completely eliminating any scratches :?:
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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Marko
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Re: 1971 VW Type 3 Fastback

Post by Marko » 24th July 2019 - 7:44pm

Cellulose is not forgiving like 2pk, your prep has to be 100% spot on, 2pk is very high build and wont sink like cellulose. This is why I wouldn't use cellulose ever again (unless metallic basecoat and 2pk clear)
my 1968 Fastback Automatic build thread
viewtopic.php?f=4&t=6896

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broady_6
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Re: 1971 VW Type 3 Fastback

Post by broady_6 » 24th July 2019 - 9:06pm

Ive had a bit of play for an hour, I think its a combination of some primer scratches and needing to go to 2000. Ill pop some photos on later but I have managed to get a patch basically scratch free and but with some swirls. Im kind resigned to it being a 6fter. But as long as I can get the rest of the car to this standard ill live with the swirls as theyre only visible in direct sun light and focus on enjoying the car. I don't have the skills for celly
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broady_6
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Re: 1971 VW Type 3 Fastback

Post by broady_6 » 24th July 2019 - 9:10pm

Image

Image
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937carrera
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Re: 1971 VW Type 3 Fastback

Post by 937carrera » 24th July 2019 - 9:12pm

You should have the hang of it by the 200 hour mark - Platinum service :badgrin:

https://www.kdskeltec.co.uk/price-menu/ ... s/wet-sand

Seriously, you are probably been a bit self critical, and you still have the option of going to 3000 or using G3 again ?
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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vwfye
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Re: 1971 VW Type 3 Fastback

Post by vwfye » 28th July 2019 - 4:00am

Better than my 71s paint!
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Aaronslimvw
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Re: 1971 VW Type 3 Fastback

Post by Aaronslimvw » 29th July 2019 - 9:57pm

Great improvement!

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broady_6
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Re: 1971 VW Type 3 Fastback

Post by broady_6 » 29th July 2019 - 10:25pm

It would seem that theory was mostly wrong. I dont know why but something about the block was bugging me. So I sacked it off. Here is a shot of the roof which I used the flexi block with 1500. Pardon my french but its fucking awful!

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5 minutes later, a piece of 1500 and my hand.

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Far from a mirror but you can see a huge improvement. So it would seem that for some reason I am adding dozens of scratches when I use the flexi block and produce a much better finish using my hand and light pressure. Yet everything ive read says its best to use a block to get a nice uniform finish. Anyway, the block is gone, it is an ex block ect ect.

After a little more work I got to this. There are still marks in there, but theyre so small the camera cant pick them out. Hopefully they wont be visible in natural light. Electric light is a harsh critic!

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I think my only question now is, what the hell was I doing with the block to ruin the paint like that?
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937carrera
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Re: 1971 VW Type 3 Fastback

Post by 937carrera » 30th July 2019 - 12:01am

That's a huge improvement, you should be pleased. Maybe the block was not flat,had some hard spots of you were just pressing too hard ???
David
1974 412LS Variant
1973 412LE 4 door Fastback / Saloon

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Marko
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Re: 1971 VW Type 3 Fastback

Post by Marko » 30th July 2019 - 6:23am

I found the best block was a piece of old still foam about an inch thick, same type of stuff like the floor mats you can get for the garage floor, 6x2" approx so it bends to the shape of panel. That ans plenty of washing up liquid and it sucks itself to the panel for a perfectly flat finish. Flating by hand can be tricky as you can end up with finger marks as you put pressure on.

Looks 10 times better though!!
my 1968 Fastback Automatic build thread
viewtopic.php?f=4&t=6896

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broady_6
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Re: 1971 VW Type 3 Fastback

Post by broady_6 » 30th July 2019 - 8:05am

This is the thing id been using. https://www.ebay.co.uk/itm/VELCRO-RIGID ... SwRLlZnD0b

Id read/seen people using hard blocks and getting better results than I did. So I thought that block would be fine.

To be honest for now, blocks of any sort can sod off. I know I wont get a perfect finish using my hand, thats why i bought the block in the first place. But I at least know what im doing and that im going to get something half decent out of it. So I will do the whole care by hand. I can always revisit it in the winter after a practice on some scrap. Im just not prepared to F it up again with a different block. I feel rather motivated at the minute so a respectable finish over a crap one will keep me happy :)
The sultan of swing

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