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Some Tips on DIY Grinding Wood

Views:100     Author:Site Editor     Publish Time: 2021-12-29      Origin:Site

Sanding is usually a neglected surface preparation step on bare wood surface. However, the quality and uniformity of the finished product depend on proper grinding with tool grinder. In order to achieve good results, the following simple steps should be taken care.

 

 

1. Selection of Right Abrasive/Tool

The first thing to consider is the size of the workpiece. For smaller, inaccessible areas and more complex furniture or molding areas, sandpaper or sponges are required to provide versatility and flexibility to reach tighter areas after the next step of paint removal and completion. For bigger work and smoother surface, grinder motor is a better, faster and simpler wood grinder equipment. Belt sanders are very useful for smoothing large flat surfaces and removing paint, varnish or stains.

 

50-2-mini hand grinder

 

2. Selection of Suitable Sandpaper

Whether high quality grinder or hand sander is utilized, it is necessary to ensure that the smallest sandpaper is applied to remove defects or shape edges on the material surface. 40 to 60 raw emery paper can be selected for coarse sanding and stripping. 80 to 120 sand paper can be selected for smoo`thing the surface and removing small defects. In order to finish the surface treatment successfully, ultra fine sandpaper of 360 to 400 can be applied.  

 

There are two basic types of wood, softwood and hardwood. Understanding the differences in wood can prevent over grinding and prevent the situation that the wood can not be painted. Wear dust mask, gloves and safety glasses when grinding.

 

 

3. Prepare the Workpiece for Grinding

Scrape off any glue residue on the surface of the wood and remove any traces evenly. Clean all surfaces with microfiber cloth to remove sawdust.  

 

 

4. Grind the Workpiece

When electric grinder is used, always keep the grinding parallel to the wood grain to avoid scratches. Move the grinder tool anytime and anywhere to avoid unnecessary grinding. Always start with the coarse gravel belt or grinding wheel and gradually switch to the finer gravel until the required smoothness is achieved. Do not press too hard, otherwise it will block the grinding plate or belt. Let the weight of the tool provide the right amount of pressure. If mini hand grinder is selected for manual grinding, the same general process should be followed.

 

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5. Clean up and Prepare for the Next Step

After grinding, clean the surface with microfiber or adhesive cloth before applying coloring agent, coating agent or coating material.

 

 

6. Outer Layer Polishing

Once the above steps are completed, the workpiece will need to be grinded again with grinder polisher to smooth any surface defects or surface irregularities so as to obtain super smooth surface effect.

 

The first rule of grinding is that drill grinder should grind along the grain of wood. Because if it is polished against the grain, it will leave obvious permanent scratches. The second rule is to use grinding blocks, because if grinding blocks are not used, then uniform grinding strength will not be guaranteed.


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