1. Mohawk Professional Furniture Stripper
2. Mohawk Oxalic Acid
3. Old Master Oil-based Exterior Finish Spar-Marine Varnish
Tools Required:
1. Cheap, small, natural paint brush
2. Scrapper
2. Used toothbrush
3. Fine sandpaper
4. Lint free rags
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| Black Spots Before Removal |
1. Pour small quantity of paint stripper onto a small plastic container;
2. Use paint brush to apply paint stripper on the affected area;
3. Use a scrapper to remove lifted varnish after about 5 minutes;
4. Repeat the step 1-3 several times until the varnish is removed, slight sanding before each repeat;
5. Mix 4 oz Oxalic Acid crystals with 500ml of warm water in a small container;
6. Use a toothbrush to apply the bleach solution to the black spots and brush off the black spots;
7. You might have to repeat step 6 several times until the black spots are removed;
8. Let the door dry overnight
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| Bare wood after stripping, bleaching, cleaning & sanding |
9. Apply varnish to the bare wood using a lint-free rag several times; allow to dry and sand between each application
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| Varnished exterior wood door after black spots removed |
