How
to fix water/mould damaged or flaking paint on your walls
Often
when decorating your home, you will come across imperfections with your walls
such as mould, water damage and even just old flaking paint.
However,
by just simply painting over the top only masks the problem and can even create
a bigger problem too! This is because chances are you will see these problems
resurface again in a couple of months, or they will even be visible underneath your
new paintwork too!
It
is very important that you recognise what the issue is before you go about
fixing it, for you to find the right tools to fix this and avoid facing the
same problem again in the future.
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| Decorating Centre Online- Zinsser B-I-N Interior & Spot Exterior Primer-Sealer Stain Killer £16.50 |
Usually,
a great way of repairing and protecting your walls is to use a good,
well-respected primer that will not only cover the problem, but it will protect
your new paint by acting as a barrier that seals in any issues or odours. (See
table for list of issues and how to tackle them detailed below)
Below
is a handy quick little guide on how to fix water damaged walls, mould damaged
walls and even flaking paint too!
Just
follow the step-by-step guides below for some handy tips and tricks!
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| Decorating Centre Online- @homeinthemews Colour Match Paint from £13.99 |
How
do I fix water damaged walls?
If
your walls are stained from previous water damage and painting over them simply
won’t cut it - then a primer is the answer to all your problems.
The
primer that you choose will create a seal between the water damaged wall and
your new paint which means that the stains from the water damage will not
penetrate through to your clean and fresh new paint.
The
primer layer will also work to block in any moisture or discolouration created
form the water damage as well as creating a wall that is both smooth and
completely dry ready for a topcoat of paint.
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| Decorating Centre Online- Glitter Sand Brick Wallpaper £10.99 |
What
you will need:
- Sugar Soap-
- Sponge
- Surface Filler-
- Sandpaper- Assorted Fine, Medium and Coarse Grade Sandpaper 140mm x 230mm £1.50
- Stiff Bristled Brush
- Primer-Zinsser B-I-N Interior & Spot Exterior Primer-Sealer Stain Killer £16.50
- Paint Brush- Immaculate Finish Synthetic Bristle Brush 1" £2.19
- Top Coat Paint (Decorating Centre Online's Colour Match Paint or otherwise)
Follow
the step-by-step guide below in order to fix your water damaged walls quickly
and effectively:
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| Decorating Centre Online- Sugar Soap Ready to Use 500mls £1.99 |
2.) Fill in any cracks and/or any other small- or even
larger- surface defects with a suitable filler, such as the Toupret FineSurface Filler £7.60. You must ensure that the filler which you decide to use is
completely dry before you move into the next step below.
3.) Sand the area if there are areas of old
paint/flaking paint/ loose plaster. This can be done by wrapping fine sandpaper
around a wooden block, or other similar solid block and lightly rubbing it over
the surface which your are intending to paint.
4.) If there is any dust from the sanding step detailed above, or even other
common household dirt on your walls, you must make sure that you remove
dust and the other loose material using a stiff bristled brush. If this
step is not taken, the household dirt will get into your new layer of
paint and will either show through with a texture, or even change the
consistency of the paint applied. It is therefore essential that all dirt
and/or dust is removed from your walls. Once the wall is both clean and
completely dry, move onto next step.
5.) Apply Zinsser B-I-N primer to the wall using a
paint brush in random strokes. We recommend that you use a synthetic bristle brush that will hold a
good amount of the primer in the bristles for easy application- in
accordance to the manufacturer’s instructions- and allow a minimum of two
hours drying time. This step may need a second coat after the drying time
is complete.
7.) Apply your top coat of
paint. If you need more information regarding this step, please check out
our Other Blog post ‘How to Paint walls’.
For more help, check out the video below:
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| Decorating Centre Online- Zinsser Perma-White Interior Anti Mould Paint 1L £15.49 |
How
do I fix mould damaged walls?
Mould
growing over paint or wallpaper is a very common problem in homes and is often
caused by high humidity, condensation and water leaks amongst many other things
too.
Mould
occurs when moisture in the wall penetrates the paint and/or wallpaper causing
mould and damp spots to crop up. Not only does this have a distinctive ‘mould’
small to it, but it can also damage the wallpaper and even the wall if left for
a significant amount of time.
This
means that, because mould is such a common issue, a lot of people end up having
to re-paint their walls every couple of months to cover up the problem, which is
not only time-consuming, but expensive too!
However,
doing this allows the problem to keep occurring as the moisture continues to
penetrate the new layers of paint or wallpaper and so you will only be covering
up the problem, rather than fixing it for good.
Using
Zinsser B-I-N will
not only allow you to cover the problem in an efficient two steps, but also it
will help to stop the problem all together as a result of its anti-fungicidal
properties.
Zinsser’s
B-I-N Primer also creates a coating that can be used to paint over and kill all
existing mould, mildew, moss and odour causing bacteria.
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| Decorating Centre Online- Stone Effect Wallpaper Grey £10.99 |
What
you will need:
• Sponge
• Stiff Bristled Brush
• Paint Brush-
• Perma White Paint-
Following
these steps below can help to
rid your walls of mould and avoid it resurfacing in the future:
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| Decorating Centre Online- Colour Match Paint from £13.99 |
- Prepare the mould damaged walls by removing damaged wallpaper- if
you have any- by following the steps in out Other blog Post ‘How to Strip
Wallpaper’.
- After the step above has been taken- if you must do it- ensure that
you completely clean the wall with sugar soap. By completing this step, you
will have to ensure that you remove all mould or other organic growth,
dust and any loose bits of plaster from the wall.
- Next, ensure that you fill any cracks or small surface defects with
a suitable filler such as Toupret Fine Surface Filler.
- Make sure that the wall is nice and smooth after repairing any
damage by rubbing it down with a fine grade abrasive paper to ensure the
wall is smooth. You must allow the wall to completely dry out before
moving onto the next step below.
- Apply Zinsser B-I-N primer to the wall using a
paint brush once the wall is completely dry. Much like in the water damage
guide above, we would recommend using a synthetic bristle brush that will hold a
good amount of the primer in the bristles for easy application (in
accordance to the manufacturer’s instructions) and allow a minimum of two
hours drying time.
- Once the Zinsser primer has completely dried, this should act as a
breathable barrier between the wall and the paint and prevent moisture
from breaking through the primer which is what usually causes mould
damage. This primer also has anti-fungicidal properties which helps
prevent mould causing bacteria as an extra barrier against mould growth.
- Next, paint over the primer with at least two coats of Perma-White. This is an anti-mould paint
that will resist cracking, peeling and blistering for up to 7 years. It is
suitable for areas of persistent high humidity, frequent temperature
changes and poor air circulation such as bathrooms or even kitchens too.
It is a scrubbable paint and perfect for high traffic areas such as
bathrooms and laundry rooms too.
- Leave to dry for the appropriate time.
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| Decorating Centre Online- Puzzle Geometric Triangle Wallpaper Mustard £16.99 & |
For more help, check out the video below:
How do I fix the flaking paint on my walls?
Flaking
paint is often caused by moisture beneath the paint, or if paint has been
applied to a poorly prepared surface. This means that preparation is the key to
creating a perfectly smooth wall which is free from flaking and other imperfect
textures.
This
can also be the case for wood surfaces if moisture penetrates the wood and a
primer has not been used.
The
best way to rectify flaking paint on your walls is to sand down the surface as
much as possible and apply Zinsser Peel Stop which is a
flexible sealer that creates a breathable membrane and a sound surface for new
paint.
This
tough acrylic film stays flexible and helps prevent peeling by letting moisture
escape.
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| Decorating Centre Online- Kismet Moroccan Damask Wallpaper Silver £13.99 |
What
you will need:
·
Wallpaper scraper- Soft Grip Stripping Knife 50mm £3.50
·
Synthetic Bristle Brush
·
Other Primer- Zinsser’s Bulls Eye 1-2-3 £9.75 or Zinsser’s Cover Stain £7.69
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| Decorating Centre Online- Zinsser Peel Stop Bonding Primer 1L £10.29 |
Follow the
step-by-step guide below in order to remove your flaking paint from your walls and
to ensure that your new paint won’t flake again:
- To prepare the surface for the application of the Zinsser Peel Stop using a sugar soap to
remove any dust, dirt grime or wallpaper adhesive still left on the walls
and ensure they are completely dry.
- Scrape or sand the surface to remove any flaking paint or loose
plaster. Ensure that any of the dust or dirt from this step is completely
removed before moving onto step 3.
- Fill any cracks or small
surface defects with a suitable filler such as Toupret Fine Surface Filler
and rub down with a fine grade abrasive paper to ensure the wall is
smooth. Allow the wall to try out completely before applying any primer.
- Spot prime areas with Zinsser’s Peel Stop where any paint has been
scraped or sanded off. However, excessively porous surfaces may require a
second coat- always wait the appropriate time before applying the second
coat.
- Shake or stir before using and apply using a synthetic bristle brush, roller or an
airless sprayer. Back brush or roll to work the Peel Stop Primer into
cracks and edges of old paint. If applied correctly it should have a
slight sheen when dried. Apply another coat if dull spots appear rather
than a sheen.
- Allow to completely dry then for the best results use a coat of Zinsser Bulls Eye or Zinsser Cover Stain primer before
painting. Using a primer before painting allows you to get the best
durability and coverage. The primer builds up a protective breathable film
underneath the paint which eliminates moisture, odours and prevents mould.
- Apply your top coat of paint- we would recommend always using two
coats of this paint for the best-looking finish.
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| Decorating Centre Online- Soft Grip Stripping Knife 50mm £3.50 |
For more help, check out the video below:
Check out the table below for a quick look on which primers are the best for which damage- water, mould or flaking paint- and a quick guide on how to use each of them:
Primer
|
How to use
|
|
Water damage
|
Zinsser
BIN Primer, Sealer and Stain Killer
|
Prepare area by cleaning, sanding and drying. Once completely dry
apply the Zinsser primer according to the manufacturer's instructions and
allow to dry before painting.
|
Mould
|
Zinsser
BIN Primer, Sealer and Stain Killer
|
Prepare area by cleaning, sanding and drying. Once completely dry
apply the Zinsser primer according to the manufacturer's instructions and
allow to completely dry before painting.
|
Flaking paint
|
Zinsser Peel Stop Clear Binding Primer
|
Prepare area by cleaning, sanding and drying. Make sure to remove all
flaking paint and ensure the surface is flat. Once completely dry apply the
Zinsser Peel Stop according to the manufacturer's instructions and allow to
completely dry before painting.
|
Fire
|
Zinsser
BIN Primer, Sealer and Stain Killer
|
Prepare area by cleaning, sanding and drying. Once completely dry
apply the Zinsser primer according to the manufacturer's instructions and
allow to completely dry before painting.
|
Odour
|
Zinsser
BIN Primer, Sealer and Stain Killer
|
Prepare area by cleaning, sanding and drying. Once completely dry
apply the Zinsser primer according to the manufacturer's instructions and
allow to completely dry before painting.
|
OR Check out our OTHER Blog Posts for more
information as well as handy Tips & Tricks!
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