Home>Discussions>PAINTING & FINISHING>scraping siding with a heat gun: residue
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Tom
scraping siding with a heat gun: residue

I'm scraping old wood siding that's been covered by vinyl for years. This is the first time I've scraped with a heat gun. It's very gooey and leaves a residue behind. It's sticky when hot, but dries hard and is firmly adhered to the wood. I'm not able to scrape it off, but I could probably sand it off. Is this common? Since it seems to be adhered so well, and since I presume it's just paint, is there any harm in just leaving it?

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HandyAndyInMtAiry
Re: scraping siding with a heat gun: residue

Tom,

Depends on how smooth you want your finish to be. I would never use a heat gun on wood siding. That gets too how and could easily cause the clutter on the inside of the wall to catch fire. Use an Ultra-Violet light, that does the same thing, but without heat, or a grinder that removes a very small layer. Something as small as a sixteenth of an inch at a time. You can use a nice sander to get most of it off.

Andrew

Handy Andy In Mt Airy NC

Tom
Re: scraping siding with a heat gun: residue

Thanks, Andrew. Most significantly, I'm concerned about whether the new paint will bond to that residue, as well as it would to wood. It sounds like you don't think that'll be an issue?

HandyAndyInMtAiry
Re: scraping siding with a heat gun: residue

Tom,

Just prime the surface, paint sticks to primer. I would sand that smooth, because paint will magnify the imperfections. I would love to replace all of our siding with new cedar, but I don't want to lose the original siding. So, I scraped, sanded and used a siding grinder to remove the old layers. I replace all that I did not like the look of. Things that were not so pretty, etc... But there were not too many to replace. I shot the primer before installing the new cedar wood. Then shot on the paint, followed by a dry brush to give it the brushed on look. They did not have paint sprayers when this house was built 130 years ago.

Andrew

Handy Andy In Mt Airy NC

Clarence
Re: scraping siding with a heat gun: residue

Did you have it tested for Lead ?

Using a heat gun to remove lead paint is not a good idea.

ordjen
Re: scraping siding with a heat gun: residue

 If the house pre-dates the mid70's, there is a very good chance that there is lead paint on it.  Sanding or burning lead paint is not a great idea. For Pro's, it is outright illegal to disturb more than 6 square feet without taking proper lead containment procedures. Frankly, I am glad i am no longer in paint contracting, after 4 decades of having done it. Those containment procedures would drive the costs of painting a house right through the roof!

Clarence
Re: scraping siding with a heat gun: residue

 ORDJEN are you one of the old time members before the take over about 2.5 years ago.

ordjen
Re: scraping siding with a heat gun: residue

Yes, Clarence, I remember you well. You are very knowledgeable on topics plaster and masonry, areas in which it is getting harder and harder to find good trades people, at least in this country.

Clarence
Re: scraping siding with a heat gun: residue

What is your opinion on how this site is managed v the old forum i don't remember who made the statement about this site is a goner but they had some insite.

ordjen
Re: scraping siding with a heat gun: residue

I am not sure yet Clarence, as I have just returned. Getting to the "Discussions" blog is not exactly intuitive for someone trying to get here to ask a question, but then, I was always having problems with the old system which constantly wanted to throw me out and difficult to navigate getting back in. Unfortunately, the Home Depot public website and answer blog is even worse

What do you perceive as problems with the present site? What should I be aware of?

I have noticed that if someone posts a pic, i have to download it to my documents before I can view it. That is awkward. There is also the chance that I could be downloading something malecious onto my computer too.

Clarence
Re: scraping siding with a heat gun: residue

I don't have to down load pictures to documents I can't advise you on computer operations as i am not up to date with the mo systems.

AS for the site i did find it hard to navigate but have gotten used to it some what. When a poster has a question there seams to be only two or three people that will give advice to the DIYer asking the question they get very limited advice or information on the subject. You can check the unanswered questions and there are more unanswered that answered i don't understand that part i am on another DIY forum & that forum will have many answers and there are alot of questions ask on the other forum.

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