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TOPIC: Do you have to Prime?

Do you have to Prime? 7 years 8 months ago #290814

  • badrhino
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Just a question?

Do you have to or better yet should you prime aluminum (i.e. wheels) before painting it?

I have painted other aluminum pieces without priming and they are still good.
1980 KZ1000 with a 1982 KZ1000J motor with 1100 pistons and heads, Vance & Hines, 29MM Smooth Bores, Work in Progress
Franken Z!
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Do you have to Prime? 7 years 8 months ago #290832

  • Old Man Rock
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Adhesion Promoter is he recommendation on bare metal or plastics...

Bull Dog @ Wally Word... Good stuff.. A PITA to work with but about the best I've found... DupliColor also has available in can spray... Works well enough.

Just fine scuff the aluminum and clean/prep... Then spray adhesion promoter... Then spray primer... Then paint.... This is how I did my headlight shell and it came out just fine...

1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
Keihin, 29mm CR specials
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter

Phoenix, Az
Last Edit: 7 years 8 months ago by Old Man Rock.
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Do you have to Prime? 7 years 8 months ago #290835

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I don't believe certain types of paint need a primer:
Wheel paint, engine paint, bar-b-que grill paint, perhaps others.
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Do you have to Prime? 7 years 8 months ago #290860

  • MFolks
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If the part is metal and you've used a good paint that can be baked, 350 F for an hour will give a durable finish. It might stink up the house, so open windows to vent any odors.

I use our electic oven several times a month for the odd bracket or two. I made up some hooks from wire clothes hangers and suspend the parts from the racks in the oven.

I found the best way to get a good paint job was to let the part(s) air dry for a day and then bake them.The finish will be so durable that paint stripper may not remove them, only by grit blasting or wire wheel abrasion will remove them.
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)
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Do you have to Prime? 7 years 8 months ago #290869

  • TeK9iNe
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The finish will be so durable that paint stripper may not remove them, only by grit blasting or wire wheel abrasion will remove them.

Except with the Duplicolor engine enamel. I've tried everything to make that stuuf stick and it just wont. Chips and scratches soooo easily! :angry:

Thier high performance wheel paint is MMUUCCHH more durable if done exactly the way MFolks describes.

I like a good self-etching primer, cause it dries real fast and helps to fill/hide some imperfections before your good color coat.


Motorcycle Shop Owner/Operator

79 Kawie Z1000 LTD
81 Kawie Z1000 CSR
83 Honda VT750C A
85 Kawie GPZ900 A2
86 Zukie GS1150 EG
93 Yamie XV1100 E
Lucky to have rolled many old bikes through my doors ;)
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