finishing materials

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Across
  1. 4. Protective liquid used on wood surfaces
  2. 7. A type of floor covering made of wood pieces
  3. 9. Boards used to cover floors
  4. 10. Hard natural material used for floors and walls (5)
  5. 11. Material used on walls, available in many patterns
  6. 12. Strong natural material often used in kitchens
  7. 14. Material used to fill gaps between tiles
  8. 15. Material used for sealing joints
Down
  1. 1. Soft material used for curtains and upholstery
  2. 2. A layer applied before painting (7)
  3. 3. Wall covering made of wood or MDF
  4. 4. Artificial floor material resistant to water
  5. 5. Thin layer of wood used as decoration
  6. 6. Soft floor covering made of fabric (7)
  7. 8. Wall finishing material applied in wet form (8)
  8. 13. A substance used to stick materials together (8)
  9. 14. Transparent material used for windows and decorations