tomaxcars
New Member
- Messages
- 8
- Location
- Waterford, Ireland.
Hi Folks,
Firstly - I'm delighted to see how this site & forum has developed - I found Malcolm's site years ago and was hugely impressed by all the info (it even spurred me on to buy a 20 gallon pot-blaster which has proved to be an absolute godsend). It's great to see how active the forum is - I've been scouring for the past fortnight on all manner of subjects.
My brother and I are in the middle of a resto of a classic 2 Door Range Rover and the minute which brings me on to the subject as per the title. To date we've always used 2 pack etch on aluminium and bare steel but in the main we have always been able to metalwork the items being painted to near perfect and very little filler has needed to be used. The doors on the classic are a birmabright (aluminium 93% / magnesium7%) skin over a steel frame and due to the number of internal spars in the door any dents in the outer skin can't easily be accessed and beaten out. We're using small holes and hooks to pull out the heated metal and durawelding them back up - but still there will need to be more filler used than we normally do.
Having read all the threads on here about the great properties of the 2 pack epoxy primer I'm convinced this the way forward for priming our various restos but I'm getting slightly differing reports from the paint suppliers here in Ireland and also the much lauded lechler primer doesn't seem to be easily attainable here.
The 3 products I can easily get hold of are:
PPG (DPLF I think) - (4.5L - €50 / £44)
Datasheet - http://www.custom-aerosol.com/pdf/PPG-DPLF-epoxy-primer-product-sheet.pdf
The feedback from the paint supplier for the PPG is that it won't stick to bare aluminium and requires an etch - sort of defeating the purpose. From the PPG DPLF datasheet is seems to suggest that this is not the case that it will stick to a properly cleaned and sanded surface with "Film build of 1.2–1.5 mils of DPLF required". I've read the comments about this maybe requiring extra heat to set up. The DPLF seems to be a 2:1 mix whereas what I'm being offered is apparently a 4:1 mix. Is it the DPLF 40 / 50 that people are using?
Jotun - Jotamastic (4.5L - €75 + €40 epoxy thinners)
This is a high solids paint and needs epoxy thinners to make is sprayable or switching to a 1.8mm nozzle. Having read jamesmacc's post below about the Jotun paint he was supplied and the cost I'd rather avoid this.
Tikkurila - Temacoat GPL-S (4.5L - €50 / £44)
Datasheet - http://www.paintshop.ie/Upload/Product/256450842_Temacoat%20GPLS.pdf
This seems like a good option because it explicitly states that with a properly abraded surface it will stick to aluminium and is available in a range of colours, as per peoples notes of a preference for matching topcoat colours for possible stonechips etc.
I'd really appreciate if people could shed some more light on the PPG product that they have used and cast an eye over the Temacoat datasheet and let me know their thoughts - as it is the one I'm currently veering towards.
Many thanks folks and keep up the excellent work.
Andrew
Firstly - I'm delighted to see how this site & forum has developed - I found Malcolm's site years ago and was hugely impressed by all the info (it even spurred me on to buy a 20 gallon pot-blaster which has proved to be an absolute godsend). It's great to see how active the forum is - I've been scouring for the past fortnight on all manner of subjects.
My brother and I are in the middle of a resto of a classic 2 Door Range Rover and the minute which brings me on to the subject as per the title. To date we've always used 2 pack etch on aluminium and bare steel but in the main we have always been able to metalwork the items being painted to near perfect and very little filler has needed to be used. The doors on the classic are a birmabright (aluminium 93% / magnesium7%) skin over a steel frame and due to the number of internal spars in the door any dents in the outer skin can't easily be accessed and beaten out. We're using small holes and hooks to pull out the heated metal and durawelding them back up - but still there will need to be more filler used than we normally do.
Having read all the threads on here about the great properties of the 2 pack epoxy primer I'm convinced this the way forward for priming our various restos but I'm getting slightly differing reports from the paint suppliers here in Ireland and also the much lauded lechler primer doesn't seem to be easily attainable here.
The 3 products I can easily get hold of are:
PPG (DPLF I think) - (4.5L - €50 / £44)
Datasheet - http://www.custom-aerosol.com/pdf/PPG-DPLF-epoxy-primer-product-sheet.pdf
The feedback from the paint supplier for the PPG is that it won't stick to bare aluminium and requires an etch - sort of defeating the purpose. From the PPG DPLF datasheet is seems to suggest that this is not the case that it will stick to a properly cleaned and sanded surface with "Film build of 1.2–1.5 mils of DPLF required". I've read the comments about this maybe requiring extra heat to set up. The DPLF seems to be a 2:1 mix whereas what I'm being offered is apparently a 4:1 mix. Is it the DPLF 40 / 50 that people are using?
Jotun - Jotamastic (4.5L - €75 + €40 epoxy thinners)
This is a high solids paint and needs epoxy thinners to make is sprayable or switching to a 1.8mm nozzle. Having read jamesmacc's post below about the Jotun paint he was supplied and the cost I'd rather avoid this.
Tikkurila - Temacoat GPL-S (4.5L - €50 / £44)
Datasheet - http://www.paintshop.ie/Upload/Product/256450842_Temacoat%20GPLS.pdf
This seems like a good option because it explicitly states that with a properly abraded surface it will stick to aluminium and is available in a range of colours, as per peoples notes of a preference for matching topcoat colours for possible stonechips etc.
I'd really appreciate if people could shed some more light on the PPG product that they have used and cast an eye over the Temacoat datasheet and let me know their thoughts - as it is the one I'm currently veering towards.
Many thanks folks and keep up the excellent work.
Andrew