Can you use TSP on painted walls?

Asked By: Henning Sanchoyerto | Last Updated: 15th June, 2020
Category: style and fashion bath and shower
4.9/5 (521 Views . 22 Votes)
TSP, which stands for trisodium phosphate, is a powder you mix with warm water and use to wipe down your walls before painting. It is essential to paint preparation. It acts in three ways to improve your paint's stick-to-itiveness: Degreaser: TSP helps to remove stubborn greasy areas.

Click to see full answer


Simply so, will TSP damage painted walls?

Damage to certain surfaces: Avoid cleaning with TSP in the bathroom; it can damage metal, ceramic tile, grout, and glass. And as discussed above, it's not suitable for painted surfaces.

Additionally, how do you clean walls with TSP before painting? Clean grease and grime from walls with trisodium phosphate.

  1. Fill a bucket with 1 gallon of hot water, and then add ¼-cup trisodium phosphate.
  2. Dip a sponge into the cleaning solution.
  3. Scrub the solution onto the walls, starting at the bottom and working your way up.

Beside above, how long after washing walls with TSP can you paint?

To use TSP as a paint stripper for removing thin coats of chalk paint, whitewash or a similarly thin material, mix a strong solution, wipe it generously on the paint and leave it for 20 minutes before scrubbing. Expect to repaint after washing any painted surface with TSP.

Do you have to rinse walls after using TSP?

Standard TSP must be rinsed away with clean water. Depending on how dirty the surface is, several rinses may be necessary. It isn't as strong as the original TSP, but it is well-suited for lightly soiled surfaces and general-purpose cleaning. It requires no rinsing when mixed as directed.

39 Related Question Answers Found

What to wash walls with before you paint?

Dust and clean the walls. For most surfaces, use a towel or a vacuum cleaner. When painting a bathroom or kitchen, wash the walls with a solution of approximately three teaspoons of laundry detergent to one gallon of water. Scrape any cracked or flaking paint with a paint scraper.

Is TSP dangerous?

TSP is moderately toxic by ingestion and is a minor skin irritant, but the big advantage of using it is that it doesn't produce toxic fumes. Keep TSP out of children's reach, and use gloves while cleaning with it.

What is good to wash walls with?

The best way to wash walls painted with latex paint is to use warm water and a nonabrasive all-purpose cleaner. Dip a clean sponge in the water, then wring it dry. Gently rub the wall. Pay special attention to areas that get touched often—such as around doorknobs and light switches.

Do you need to wash walls before painting?

While there is no best way to clean walls before painting, most walls can be washed using a sponge and warm water. For surfaces that have exposure to oil or grime, like kitchen walls, wash with a solution of water and grease-cutting detergent and follow up with clean water to remove any residual cleaning agent.

Is TSP a Deglosser?


TSP is in essence a strong detergent and should not be used as a deglosser. However, it is a good product for cleaning and preparing a surface for painting. Just like for any other painting job around the house it is important to work on a clean surface.

How do you clean walls with borax?

You can make an effective wall cleaner by mixing a cup of borax powder with 2 tablespoons of dish detergent in a gallon of warm water. This solution is mild, but you still may want to wear rubber gloves when you use it.

Is trisodium phosphate the same as baking soda?

TSP substitutes
The main ingredient in TSP is phosphate, but this product contains no phosphate. It has sodium sesquicarbonate, similar to baking soda, as the main ingredient (sodium sesquicarbonate makes up about 20% of actual TSP).

What is TSP substitute?

If you are looking for a more natural trisodium phosphate substitute, borax can be a fine replacement. It doesn't require all the safety measures of TSP and is inexpensive, easy to use and it won't hurt the environment. Borax can kill fungus and strip away dirt and grease on porous surfaces such as wood and cement.

How long should you wait to paint after washing walls?

With latex paint, you only need to wait a half hour or so before peeling off the tape. With alkyds, two or three hours is enough.

Can I use vinegar instead of TSP?


An all-purpose cleaner is made by combining ¼ cup baking soda, ½ cup vinegar and ½ gallon water. One-half cup borax can be added; increase the water to 1 gallon. borax, 1 tsp. ammonia and ½ gallon warm water.

How do you clean walls with vinegar?

Vinegar is a natural and powerful cleaner that deodorizes, kills mildew and doesn't emit any harsh fumes. Fill a bucket with warm water, and add 1 gallon of warm water. Dip a cloth in the solution, and wring it out. Clean the walls, starting at the top and working your way down.

How do you prep walls for painting?

To prepare for repainting:
  1. Wash the wall to remove any grease.
  2. Fill any holes and cracks with suitable filler, perhaps using flexible filler for cracks.
  3. Sand and prime the filled areas—priming will seal the filler and keep it in place.
  4. Repaint the wall with at least two coats of your new color.

How do you clean walls with flat paint?

Clean Flat Paint Walls
  1. Start by rubbing the stained wall with a clean, damp sponge or cloth.
  2. If plain water doesn't work, try adding vinegar to your damp sponge or cloth and gently scrub the walls.
  3. If vinegar doesn't remove the stain entirely, use an eraser sponge for problematic spots.

How do I prepare for painting?

  1. Prep Your Walls. Properly painting walls starts with removing everything possible, including all HVAC registers or outlet covers.
  2. Apply Painter's Tape.
  3. Spread Drop Cloths.
  4. Cut in with Primer.
  5. Prime Your Walls.
  6. Sand Primer.
  7. Cut in and Paint Walls.
  8. Wrap Up and Clean.

Can you mix bleach and TSP?


Mixing TSP
For mildew killing, household bleach is added to the TSP/water mixture. The recommended ratio is 1 part household bleach to 4 parts water. Read the manufacturer's mixing ratios, as they may vary.

Can you use TSP to clean kitchen cabinets?

Trisodium phosphate (TSP) is the best cleaner for the job, and you can pick up a bottle at most hardware and paint stores. Fill up another bucket with clean warm water. Soak a sponge in the TSP solution and start wiping down your cabinets. Focus on corners and any other areas where grease can build up.

How long after primer can I paint?

Most latex primers dry to the touch within 30 minutes to 1 hour. But do not paint the wall until the primer dries thoroughly, which can take up to 3 hours. High humidity and cool temperatures prolongs drying times.