If you’re gearing up to undertake a painting project around your home, here’s what you need to know about how to apply paint to previously painted surfaces.
Please note that the information contained in this blog relates to interior and exterior painting, not roof painting.
Firstly, to achieve the best results, the surface must be sound, clean, dry and free from all surface contamination.
In this blog we explain:
- How to check if the surface is sound
- How to prepare previously painted surfaces for a new paint
- What products we recommend, including how many coats for previously painted surfaces
- Paint application tips from Globalcote’s expert team
Step-by-Step Guide for Painting Previously Painted Surfaces
Step 1. Clean & prep the surface
Wash down the surface with detergent, followed by a rinse with clean water.
Treat any mould with bleach then rinse thoroughly with fresh water.
Don’t forget to fill in surface defects such as cracks or holes with a suitable filler, putty or sealant.
Expert tip: If the surface has been coated with an enamel or varnish product, we recommend sanding with a maximum 240 grit sandpaper and then apply undercoat with Globalcote 3 in 1 Multi-Prep primer to ensure adhesion.
Step 2. Check that the surface is sound
Before recoating previously painted surfaces, you need to ensure that the surface is sound.
Why? This simple test will determine what preparation is required before you begin painting. More specifically it will inform you whether you need to strip away the existing paint before repainting.
Here’s how to check if a painted surface is sound:
- Cut a cross hatch (#) through the paint with a razor blade (we recommend multiple vertical and horizontal lines that are 1cm apart)
- Place a piece of sticky tape firmly over the cut
- If the tape pulls the surface away, it is considered “unsound”
Expert tip: Test multiple areas across the surface you intend to paint before deciding whether the surface coating should be removed before repainting.
If the surface is unsound, proceed with Step 3.
If the surface is sound, skip to Step 4.
Step 3. Strip unsound surfaces back
When applying paint to previously painted surfaces, you’ll need to ensure compatibility with the existing coating. It’s crucial that you remove any previous coating that is blistered, loose or flaking.
By removing paint that is flaking will provide a sound, clean surface for the new paint to adhere to.
Expert tip: On previously painted surfaces, take care when using a pressure cleaner to avoid damage.
Step 4. Decide which products you need and how many coats
Review our guide below.
Globalcote has formulates and produces a high-quality range of exterior and interior coatings specifically designed for Australian conditions right here in our Brisbane headquarters.
Trusted by applicators and homeowners around the country, Globalcote is fast becoming an industry leader of specialty acrylic exterior coatings.
Low VOC and environmentally friendly, our paint products are extremely durable and are backed by
Don’t paint it, Globalcote it.
Which paint products should I use and how many coats?
Not sure which products to use and how many coats? Here’s your cheat sheet with Globalcote’s tried and tested products:
| PRODUCT | HOW TO APPLY ON PREVIOUSLY PAINTED SURFACES | TIP |
| Ceiling Flat | Apply two (2) coats of Globalcote Ceiling Flat . | |
| Wallboard Sealer & Undercoat | Apply one (1) coat of Globalcote Wallboard Sealer & Undercoat and two (2) coats of an appropriate Globalcote top coat such as the Elements Interior or Exterior range. | |
| 3 in 1 Multi-prep | Apply one (1) coat of Globalcote 3 in 1 Multi-prep and two (2) coats of an appropriate Globalcote top coat. | When painting over very dark colours, rough surfaces or high-staining timbers (eg. Cedar) a second coat maybe required |
| Elements Exterior | Apply two (2) coats of Elements Exterior finish. | |
| Elements Interior | Apply two (2) coats of Elements Interior finish. | |
| Water Based Enamel | Apply two (2) coats of Globalcote Water Based Enamel. | Use a good quality brush, short nap roller, or airless air spray machine. If spraying, we recommend a 211 tip for trims and a 411 tip for doors. Avoid thick coats as this may cause runs to appear. |
Paint Application Tips
Regardless of which product you use from the Globalcote range, here are some handy tips to get the best result of your painting project.
- Stir thoroughly
- Don’t use additives that haven’t been approved by Globalcote
- Brushing is recommended over previously unpainted timber
- If you’re having difficulties with application experienced outside in hot weather, thin sparingly with Globalcote Hot Weather Additive
- Re-moisten brushes and rollers with water, shaking off excess
- For a smoother finish, do not allow paint to dry on your brush or roller
How to Apply Paint to Previously Painted Surfaces
Planning a painting project that involves renovating previously painted surfaces?
Formulated and manufactured in Brisbane for Australian conditions, Globalcote is the answer.
Shop our range of durable range of interior and exterior coatings online here, or call our friendly team for product advice.
Globalcote is fast becoming a leader in the manufacture of specialty acrylic exterior coatings. We have an extensive product range available is a wide variety of colours.
Our product range includes roof membranes (some with heat reflective properties), primers and sealers, surface treatments, concrete coatings, interior/exterior house paint and pool paints.
We have an enviable reputation trusted amongst professional tradespeople and paint retailers Australia wide and supply a wide network of retail stores throughout Australia.
For an Australian owned and operated company thinking globally and acting locally, call Globalcote on 1300 928 826.
