Pressure Washers

When preparing a home for a new finish, one tool we typically recommend is a pressure washer. However, all pressure washers are not created equal. Choosing the right pressure washer for the job is critical for the proper performance of our cleaning and finish removal products.

When selecting a pressure washer, there are some things to look for. One of the most important features is water output volume. It should be able to put out at least two to three gallons of water per minute (2-3 gpm). A lower output tends to move the degraded stain and wood fibers down the wall, but does not necessarily wash them off of the wall. For example, electric pressure washes may generate enough pressure to clean, but since they only put out about 1/2 gallon of water per minute, they really are not suitable for cleaning a wall down to bare wood.

Although a good pressure washer typically generates 2500 to 3000 pounds of pressure (psi), it does not mean that you need that much pressure to clean the surface. You want to hit the surface of wood with no more than 600 psi in order to avoid excessive feathering. However, the higher pressure allows you to stand back from the wall and clean off a wider swath with each pass of the wand tip. For removing old finishes we recommend using a 25-degree fan tip or an adjustable nozzle, if it’s available.

One more thing about pressure washers: we don’t recommend running any of our cleaners or strippers through the pressure washer. Our products should be applied separately, allowed to work on the surface for the labeled amount of time, then you should use the pressure washer to wash it off. To avoid streaks and runs, clean from the bottom up and rinse from the top down.

A pressure washer will definitely test the sealant system of a home. Water will undoubtedly enter the home, so have someone inside with some towels and to mark water entry points for later inspection and sealing. Lastly, the wood must be allowed to dry at least a day and be dry to the touch before applying a caulk, stain, or a wood preservative.


Last modified on Thursday, 15 February 2018 22:47

Monthly Special

loyal 0919 cc

Subscribe via Email

Join the Perma-Chink Family!

Receive News and Loyal Customer Offers

On a phone? Text LOGEXPERT to 22828

Project Spotlight

  • A simple comparison of the cost of a gallon of wood stain is a mistake because all stains differ in their lifespan, coverage rate and quality of appearance and protection

    Whether you’re currently building your dream log home or simply checking off tasks on your annual home-maintenance “to do” list, we’re always looking for ways to skimp on expenses around the house.

    But when it comes to putting your best foot forward with a beautifully stained home that’s also protected from the exterior elements, you might want to think twice before being lured in by the lower price tag of a middle-of-the-road finishing product.

    Think about it

  • Lifeline Ultra-7 stands out as THE top-of-the-line, long-lasting finish. Take a look at our tutorial video on proper application technique.

    Project Spotlight