Monday, June 13, 2011

How to Paint Your House: Scraping

There are many useful scraping tools you can use when painting your house. For most exterior siding surfaces, we usually use 3 different tools: a putty knife, a 5-Way, and a carbide scraper.
Left to Right: Hook scraper, carbide scraper, putty knife, 5-way.


They all work well for scraping different paint types on different surfaces. I am also showing the hook scraper here since it's popular, although we don't use them much.




The carbide scraper can remove a lot of paint fast--it tends to shave tough paint off, smoothing out edges easily, but the blades are expensive and can break if you hit screws or nails. The carbide scraper works more like a shaving razor than a scraper, and really bites into whatever you're scraping with it.
 
I highly recommend them, though, despite the cost (around $8/double-sided blade right now in Missoula).

The standard hook scraper has a steel blade that you can sharpen, so it lasts a long time. It also doesn't cost much and won't break against nails or screws.  If you examine the edge of the blade, you can see that it's really not a blade at all. It's more of a thin piece of steel.
The downside with hook scrapers is that they aren't very sharp and dull pretty fast, especially if you're dealing with old oil-based paint (since it's tough and often really hard). If you can master the technique, you can use an angle grinder to sharpen hook scraper blades fast and get a lot of work done. Still, I like the carbide better and tend to use them until the blades break.














Take a look at this short video we took today demonstrating the use of a carbide scraper:


Also take a look at my brother scraping the same area with a 5-way:

These are just a few ways to remove paint on this particular surface, but you can apply these techniques to most any surface.

Return to the previous article, How to Paint Your House: Assessing Your Job

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