Wet block sanding can quickly argument large damage to a gloss undertaking provided not done right. Fascinating the date to assess the necessity of using wet block sanding is ethical as exigent as using Correct preparation and means when truly sanding an globe.
Sandpaper
Most wet block sanding projects for autos should not operate sandpapers that exceed 1000 grit. This lowers the risk of sanding concluded all of the top .5 mills of luminous coat, which is the object of the Stop that contains the UV Safeguard. The combination of useful grit with the lubrication of the douse does not assemble the potentially evil heat created by other techniques such as buffing.
Evaluating the Situation
Car intent repair and illustration desire careful scrutiny before any physical assignment is done. Conscious properly treat an imperfection, such as a scratch, Testament save generation, frustration and bankroll.
For instance, buffing or using a compound, depending on the Profundity of the damage, may aggrandized appropriately treat a scratch. Using wet block sanding on scratch that should be buffed away could head to aggrandized damage.
While sanding, it will be necessary to keep the area thoroughly lubricated with water. Using a spray bottle is more comfortable than dipping the sandpaper into the bucket ever time. However, the water will quickly make it difficult To measure your progress, as the water will fill scratches and make it hard to see when the scratches have been leveled out.
Using your help or your fingers Testament head to uneven impulse and create more harm than good.
Regardless of the manufacturer's specifications, the sandpaper should be thoroughly soaked before use. Add a drop or two of auto soap, which aids with the lubrication. Protect the areas near the area that needs to be sanded by covering those areas with auto masking tape.
Technique
Keep a spray bottle and towel on hand.
Preparation
In wet block sanding, imbue is used to lubricate the sanding formation and a solid backing block helps distribute the strength evenly over the world life sanded. Rubber or foam blocks are capital choices. Never wet sand without a block. Use the towel to wipe down the area to assess how much sanding still needs to be done.Hold the sandpaper at a 45-degree-angle to keep track of the scratch or problem area. By making sand scratches at a different angle than the "problem" scratch, it is easier to see when to stop sanding. Be sure to apply even pressure while sanding, but never stay in one area too long.
Once the scratch or other problem has been sanded to satisfaction, the entire area should be sanded smooth with 2000 grit finishing wet sandpaper. This grit will remove the sand scratches made by the comparatively course grit of the 1000 originally used. If the original grit sandpaper did not remove the scratch, it may be necessary to use a 1200 or 1500 grit sandpaper. Use extreme care not to sand past .5 mills or the panel will need to be repainted.
Buffing
Wet block sanding will remove the gloss from the automotive paint. Buff out the sand scratches to restore the shine. Use the buffer in slow, gradual passes to put the shine back in the panel.
Buffing is a heat-producing process and can cause paint damage if not done properly. Slow and steady is the key here.
