1. Alkali washing
With 8% ~ 10% sodium carbonate solution, or 4% ~ 6% caustic soda solution, cleaning pine, the pine oil saponification (oil and alkali effect into soap and glycerin), and then scrub sponge or brush dipped in hot water punching net.
2. Rinse method
20 grams bleaching powder mix 0.5 kg heating water, use the dissolved liquor repeatedly brushing pine site until slightly white, then wash with water.
3. Root out method
Use the blade exudate the local that contain more pine, then smooth the putty. No matter what kind of treatment is used, need wash again with alcohol or coated with a layer of shellac varnish. In addition to prevent oozing the pine and affect the film.
4. Dissolution method
With 25% aqueous solution of acetone dissolved, can also be used a mixture of 20% aqueous solution of acetone and small mixed liquor to wash.
No comments:
Post a Comment