Woodonglass
Supreme Mariner
- Joined
- Dec 29, 2009
- Messages
- 25,926
Re: Painting aluminum
I'm Thinkin......^^^^^^^
I'm Thinkin......^^^^^^^
Your on the right path ..
Bare Alum = Alumiprep + Alodine + Primer all in the same day .. True this ..
Dont head spin this IS the the Old book way .. Tried and True .. anyone can say You dont need to prime .. but .. Well I have not Tried that so good luck to you if you want to "skip a step" .
YD.
Alright, I spoke with Interlux and this is what they recommend. Any feedback would be great.
Above the waterline:
1. Degrease the surface with Fiberglass Solvent Wash 202
2. Sand/Grind/Blast the aluminum to a bright white metal
3. Remove all residue with a broom/vacuum/clean air line
4. Immediately (within 2 hours) apply 1 coat of InterProtect 2000E which has been thinned 15% by volume using 2316N
5. Apply 2 coats of Pre-Kote
a. Thin each coat up to 10% by volume using 333 when brushing/rolling or 10-15% by volume using 216 when spraying
b. Sand between coats with 220 grit paper
c. Remove all sanding residue with 333 or 216
6. Apply 2-3 coats of Brightside
a. Thin each coat up to 10% by volume using 333 when brushing/rolling or 10-15% by volume using 216 when spraying
b. Sand between coats with 320 grit paper
c. Remove all sanding residue with 333 or 216
Below the waterline:
1. Degrease the surface with Fiberglass Solvent Wash 202
2. Sand/Grind/Blast the aluminum to a bright white metal
3. Remove all residue with a broom/vacuum/clean air line
4. Immediately (within 2 hours) apply 1 coat of InterProtect 2000E which has been thinned 15% by volume using 2316N
5. Apply 3-4 coats of VC Performance Epoxy
a. Thin each coat up to 10% by volume using 2333N when brushing/rolling or 10-15% by volume using 2316N when spraying
I know I'm WAY overthinking all of this. I do that all the time. I'm even worried something will go wrong since I took my cap off but I'm sure it's just fine. I appreciate all the excellent advice. Theres a great wealth of knowledge here and I understand everyone has their own way of doing things, all with excellent results.
$82 for the SEM primer, I can live with that compared to $200+ for awlgrip or Interlux. Thanks again.
Looks like SEM has 3 different self etch primers, green, black and grey. From my research I need the green. Is this correct?