Cleaning surface after sanding primer

C

Chris Martin

Promoted Users
Gents,

Maybe silly question but here it goes: A few minutes ago I was cleaning a large surface (wing) with 700 W&G and realized I am using a large amount of material (prep wipes and 700) getting all the primer dust left over on the surface after sanding. Seems like a waste of expensive material since the main purpose of the W&G is to remove, well, W&G and not dust.

Is it acceptable to rinse the surface with water, and maybe a clean rag, after sanding to get the dust off and then, after a letting it dry overnight, hit it with 700 W&G and proper prep wipes? I would think yes but learning so might as well ask to be sure.

Thanks,
Chris
 
I blow everything off very thoroughly then W&G remover. If you want to use water first, I would use Dawn and wash it first then rinse. Seeing you are working on a composite body using water should not hurt anything.
 
Thanks Chris and Dean for the info. Water and Dawn sounds good.

Someone told me about Sprayaway a while back and I tried it. Seems good and certainly good references here.

I have to say, Also tried it on a window and wow! Amazing stuff, my wife then tried it and we are now both blown away. I even used it inside the car windows and it is fantastic.

We then threw away all the bottles of Windex we had :)

Chris
 
I blow it off or vacuum it off with a brush attachment on my shopvac, and then I simply wipe down with a dry shop towel. If there is a lot of dust coming off on the towel I'll give it a second pass over with a dry towel. This gets 80% of it, then I start with WGR. Two passes of WGR. By the second pass my 'dry towel' is always completely clean.
 
cotton jersey glove and air blower first. otherwise, your pushing mud around. damp towels will get the dust off so you can clean it.
 
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Blow it off and then use a clean microfiber towel, that'll
get 99% of the dust, if you want it cleaner than that then follow with a tack cloth.
Keeping old tack cloths around come in handy for just that.
 
also you should be spraying the 700 or 710 on then wiping it off. many people seem to clean a surface by pouring it on a rag then wiping. that doesnt really clean anything. it just smears stuff around the surface. the idea is to spray or apply to the surface to dissolve the contaminants then wipe with a dry rag so the rag will absorb and pull the contaminants off the surface . definitely blow off the sanding dust prior to cleaning.
 
Thanks for the the replies guys! I certainly have a few well thought-out options to try.

What normally I do is I get the bulk of the dust off with a nice soft and clean brush and then I bought an electric blower to get the rest of the dust off. The night before I do 700 with a sprayer, spread with wet prep wipe, then immediately dry with another wipe. This is were I had so much dust left that I had to do twice (wings are not small so lots of wipes and 700). Then half hour before spraying I hit it with 710 with wet and dry wipes (not sprayed), as explained in one posting by Chris.

I will try one of your suggestions to see if I can remove more dust before the 700 cleaning and save some of the "expensive" materials.

Thanks,
Chris
 
Sorry to jump on here a little late, but very glad I found this thread earlier. For me using Sprayway is a game changer.

Certainly don't mind giving Barry money for quality product, honestly my biggest complaint was burning through the Finish Master smart brand wipe down towels so fast. Bought some sprayway and microfiber clothes, wiped down with that first and gave it a few hours to dry. Wipe down with W&G was a non-event, towels showed no visible residue.
 
texasking said:
Microfiber towels are a no-no. Can cause contamination
Click to expand...
Good information. Barry's post sums it up well.

What would be the best to use with the glass cleaner?

For final wipe down with W&G I use these: https://www.finishmaster.com/products/smart-premium-wash-dry-cloths

PXL_20231027_175445045.MP.jpg
 
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