How to Seal Latex Paint

Latex paint doesn't typically require an additional sealer. However, applying a clear topcoat over a latex-painted surface helps to seal and protect the surface area. Painted furniture that's subject to spills and wear-and-tear, such as tabletops and desks may benefit from a protective sealant. Clear sealants also provide additional protection for faux-painted walls. Topcoat sealants typically help in resisting damage from chipping, abrasion, scuffing, alcohol, water and a myriad of other household chemicals.

Screwdriver
Painter's tape
Plastic drop cloths
Sandpaper
Clean cloth
Topcoat sealant
Paintbrush

Instructions

- 1
  Remove outlet and switch plate covers with a screwdriver if applying topcoat sealant to walls. Tape screws to corresponding covers for ease in attaching them after painting. Also, remove all wall hangings and pictures.
- 2
  Apply painter's tape along adjoining surface areas that you don't want to paint.
- 3
  Lay plastic drop cloths over nearby floors, furniture or other surfaces to protect them from sealant splatters or spills.
- 4
  Sand the latex-painted surfaces lightly with fine-grit sandpaper. Wipe down sanded areas with a clean, damp cloth to remove sanding particles.
- 5
  Apply a thin coat of topcoat sealant to latex-painted surfaces with a paintbrush. Follow manufacturer's directions for drying time, which is typically a couple of hours.
- 6
  Sand sealed surfaces lightly with very fine-grit sandpaper. Wipe down sanded areas with a clean, damp cloth to remove sanding particles.
- 7
  Apply a second coat of topcoat sealant with a paintbrush. Follow manufacturer's directions for drying time, which is typically a couple of hours.
- 8
  Sand sealed surfaces lightly with very fine-grit sandpaper. Wipe down sanded areas with a clean, damp cloth to remove sanding particles.
- 9
  Apply a third coat of topcoat sealant with a paintbrush. Follow manufacturer's directions for drying time, which is typically 24 hours.
- 10
  Remove painter's tape and reattach outlet and switch plate covers.

How to Lime Wash a Baseboard

How to Whitewash a Chimney

Paint & Wallpaper