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Sprayer for Priming
To prime or not to prime...that is NOT the question.
I have been using rattle can version of SEM primer thus far, however as I primed the ribs for the wing, I noticed I started going through cans quite quickly. There is a lot of convinces and ease of use in the rattle cans, but I'm starting to consider a sprayer. I have a wagner paint sprayer which I know will now work, so considering a HVLP. I have heard a few folks mention that harbor freight has an inexpensive one. What is everyones thought on moving up to a sprayer, vs staying with a rattle can moving forward with the wings and fuselage, and any advice on a HVLP sprayer? Thanks Dave RV-7 in process |
In general, you'll come out cheaper buying paint/primer in bulk than using rattle cans, and you'll (likely) be using higher quality paints too.
The "purple gun" from Harbor Freight is my go-to cheap gun. Get the one with the 20 ounce cup and the regulator included. About $30 when it isn't on sale, far less when it is. I've sprayed everything from epoxy primer to high build primer to single stage to base/clear with it and it is a really good, inexpensive solution. https://www.harborfreight.com/20-oz-...tor-62381.html |
The primer product you intend to use should have a paint gun orifice recommendation in their instructions. Just make sure your gun has a tip size iin that range.
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HVLP
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The harbor freight gun seems to be sufficient for primer. I like the one with the regulator but the others are good as backups. These are cheap guns so they do break or the cups crack and leak. I've gone through a few during my build but they are cheap enough to not worry about it. Look for sales or coupons the price can be discounted quite a bit.
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Thank you all, the comments were very helpful.
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Are we talking about priming the whole exterior at once or priming the individual fabricated pieces? I can't see using the bowl of a full size gun for small parts without wasting a lot of mixed primer.
I used an air brush for 90% of the primed parts of my standard build. The bigger surfaces like tips and cowl were done with a cheap (HF ish) touch up gun, For those that don't know what a touch up gun is, it is simply a full function gun with a small supply bowl. The trigger is different too but that is not important. The small bowl is. If I chose to paint the exterior, then I would get a full sized gun but I would still use the air brush for fabricated parts. |
With Akzo, I use a primer pistol exclusively for all my interior and a few exterior parts, tho for a full exterior in prep for a paint job, Id go with a proper HLPV gun. I have the HF purple gun but have yet to actually use it.
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