Painting over magnolia matt trade paint

Iv not long moved in my flat and every wall exept kitchen is magnolia mat trade paint i bought johnstons white silk emulsion and iv done 3 coats and still magnolia comes through would pva be any good to seal before painting ???

Asked by Tracey on 21st Jan 2026
Expert Trade Answers
"You can prime the wall first with primer or any emulsion paint, thanks"
Answered on 21st Jan 2026 - Member since Apr 2025 - report
"Hi. I would use a thicker paint or just keep going with new paint. It will cover but it Johnson’s paint isn’t the best I will admit"
Answered on 23rd Jan 2026 - Member since Jan 2026 - report
"Sanding the wall down & putting a primer or standard white matt paint on the wall before the silk is the best thing to do"
Answered on 21st Jan 2026 - Member since Jan 2026 - report
"use a product called zinza its a stain blocker , , its expensive though , an alternative buy light grey matt paint and use it as a primer.
steve"
Answered on 21st Jan 2026 - Member since Aug 2025 - report
"Yes you could use PVA, make sure its fully dry before applying white silk. Emulsioning the walls with whte matt emulsion could be a cheaper otion."
Answered on 21st Jan 2026 - Member since Sep 2025 - report
"The Great PVA Painting Disaster
​This video explains why using PVA as a primer is one of the most common mistakes in decorating and shows the damage it can cause to your walls over time

How to Fix It (The Professional Way)
​To get a crisp white finish without doing ten more coats, follow these steps:
​1. Lightly Sand the Surface
​Since you already have three coats of Silk on the wall, the surface is now quite shiny. Paint doesn't like sticking to shiny surfaces. Give the walls a quick "scuff" with fine-grade sandpaper (120-180 grit) to remove the sheen and give the next coat something to grip."
Answered on 24th Jan 2026 - Member since Jan 2026 - report
"Don’t use pva.are you using trade or retail paint.if it’s retail it won’t cover.id also avoid silk as it causes no end of issues.if your looking for a strong durable white get the Goodhome tough and durable from b&q,not very often you’ll hear a professional painter recommending anything but trade paint but this stuff is the best white emulsion about,you’ll have to sand the walls because you’ve got silk on it or you’ll get lots of little blisters in the paint but if you do get any allow them to dry thoroughly and they may settle back,if not you’ll have to sand the walls again and put another coat on"
Answered on 21st Jan 2026 - Member since Oct 2023 - report
"You would be well advised to apply two coats of Matt emulsion followed by one coat of emulsion glaze Good luck."
Answered on 21st Jan 2026 - Member since Jul 2023 - report
"Before doing silk. You need to do one coat white Matt on it because silk is shiny or glossy look paint it’s work as transparent you need to remove his effect you need 2 coats of any company white Matt"
Answered on 24th Jan 2026 - Member since Jun 2025 - report
"Don’t use PVA - it can cause peeling. Magnolia matt is very porous, and white silk doesn’t cover well. Seal it with Zinsser Bullseye 1-2-3 or apply one coat of white matt first, then finish with silk."
Answered on 24th Jan 2026 - Member since Jan 2026 - report
Find Tradespeople, compare up to 3 quotes!
It's FREE and there are no obligations
Ask a Trade
Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.
Ask your question
Ask a Trade

Are you looking for advice on a DIY project or have a question for our tradespeople?

We'll email your question to tradespeople who are skilled in your chosen category.

Your question will be made public - please do not include any personal details.

{{ first(ask.errors)[0] }}

By continuing you agree to the Community Guidelines.

Report Content

{{ first(reportForm.errors) }}

Thank you

Your report has been created and will be investigated shortly.

Ready to get a price for your home improvement project?
Get started

Over 1 million homeowners and over 50,000 tradespeople
use MyJobQuote nationwide each year