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Remove Burnt in Wood Using Wood Sandblasting

Posted on: August 27th, 2018 by byersbushblog

Sandblasting or bead blasting is a generic term for the process of smoothing, shaping and cleaning a hard surface by forcing solid particles across that surface at high speeds. The effect is similar to that of using sandpaper but provides a more even finish with no problems at corners or crannies. Sandblasting can occur naturally usually as a result of particles blown by wind or artificially using compressed air.

wood sandblasting

(Source: https://www.youtube.com/watch?v=Z29I6VbGT48)

When you have old wood elements in your house like floors or fences that look considerably aged and burnt out by the weather, you can mock them up to look new and fresh again. You can do wood sandblasting yourself or call for a sandblasting service to help you out. Sandblasting can be a dangerous procedure and requires blasting hood for your safety and protection.

It is important to know the differences in blasting media since different abrasive blasting media are required for different applications. Blasting media can be used for purposes such as cleaning, stripping, etching, strengthening and polishing. In addition to the media type, grit or mesh size is another factor to consider for your application. In the case of cleaning burnt wood, three blasting media selections below are suitable for your handy work.

Pumice

Pumice is a light, natural mineral that is used mainly as a mild abrasive. Pumice is ideal for less aggressive operations where protection of the surface is of supreme importance.

Corn Cob

Corn cob is an organic, soft blasting grit that is safe for delicate parts and soft substrates. As the preferred blasting media for log homes and other wood surfaces, corn cob offers excellent cleaning and stripping properties without damage to the substrate.

Walnut Shell

Walnut shell is commonly used for applications that require aggressive stripping or cleaning without damage or effect on the underlying substrate. Organic and biodegradable, the walnut shell is extremely durable, angular in shape but is considered a soft abrasive. Walnut shell sees the utility in applications such as cleaning hardwoods and aircraft and automotive stripping.

Those are the choices you can take to clean your burnt wood property. Take good care when doing sandblasting yourself and use the right equipment. Here are some extra tips for sandblasting your burnt wood:

  • Use a soft blasting mediathat won’t embed into the wood or carve away too much of the non-burnt portions of the wood in an aggressive manner.

Examples: Dry ice blasting media, crushed walnut shells, corn cob grit, plastic beads or soda blasting. Soda blasting is used for cleaning timber, wood, oak beams, oak floors, doors, stairs & bannisters, cars, boat hulls, masonry, and food processing equipment. Soda blasting is very effective for mold and fire/smoke damage cleanup as it cleans and deodorizes.

  • Large sandblasting equipment.Since most burnt wood projects are rather large, you will need to use industrial sized equipment to efficiently get the job done. This requires a large pressure pot sandblaster, along with a large diameter hose and nozzle, and a high output air compressor.
  • Lighter blasting pressure.To ensure the wood won’t get damaged further, a lower pressure is usually used. Start with a low pressure and slowly turn it up until it cleans away the burnt part efficiently without carving into the good wood too much.

Byers Bush has been in operations since 1968, specializing in powder coating and sandblasting. We are one of the oldest powder coaters in the GTA. Contact us today and get a truthful, no surprises evaluation for your painting need!

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