How to Remove Redwood Tree Stains From Auto Paint

Redwood sap contains tannins that cause it to stain.

Stains on your car from redwood trees are caused by the high tannin content of the trees' sap. It appears as a spreading dark to rust-colored spot on the surface of the car's paint. Like all sap and sticky resins, simply washing is not always effective at removing the stains, although the sap may appear to be gone. Harsh chemicals should not be used on vehicle paint, since they may end up removing more than you bargained for.

Things You'll Need

• Car wash soap
• Sponge or cloth
• Clay bar
• Sharp knife
• Lubricant
• Clean soft cloths

Instructions

1. Wash the car to remove excess dirt and grime. Washing prevents the mild abrasiveness of the clay from creating tiny scratches in the paint.

2. Cut the clay bar in half or in thirds using a sharp knife.

3. Spray the sap stain with the lubricant that corresponds to the bar you are using. Do not mix brands, as each lubricant is formulated specifically for use with that manufacturer's bar. The lubricant allows the bar to slip over the service of the paint easily.

4. Use a back-and-forth motion over the spot until you see the clay bar change colors on the used portion, or the bar ceases to work. Turn it over and continue until the sap stain is gone. If both sides of the bar become “full,” knead the clay so you have a clean surface.

5. Polish the area with clean, dry cloths to remove the lubricant.

Tips & Warnings

• Use plenty of lubricant. If the clay begins to smear or stick to the paint, spray additional lubricant on the area.

• Do not drop the clay bar. If you do, discard it and begin with a new piece.

References

• Top of the Line: Applying Auto Detailing Clay
• Auto Geek: How to Use Auto Detailing Clay

Resources

• Superior Car Care: Making the Decision to Use Clay
• Ask the Builder: Bleeding Redwood and Cedar Siding Stains