Which Products are Best for Your Job?

Choosing the correct paint for your job can be confusing. Please see our help sections below for answers to commonly asked questions.

If you are still unsure or need further advice, please call us on 01782 550733.

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Floor-Paint Systems

What is a floor-paint system?

One of the raw materials used in our paints is resin. Different resins have different chemical properties. Some resins work well together and some do not. A floor-paint system gives you the option of buying a primer first-coat and a top-coat which are based on the same, or compatible, resins.  Using the correct combination of products, or ‘paint system’, creates cross-linking and increased bonding between the primer and top-coat.

What floor-paint systems do you sell?

We manufacture and sell both single-pack and two-pack epoxy floor-paint systems. Both systems have a compatible primer (first-coat) and top coats specifically made on compatible resins. We have summarised the compatible products here.

Which products are compatible within the different floor-paint systems?

It is important that you choose products from the same floor-paint system. To help clear up any confusion, please see the compatibility table below. If you are still unsure, please call us on 01782 550733.

Single Pack Floor Paint

Two-Pack Floor Paint

Can I mix and match from different floor-paint systems?

No. Please do not use products from different systems on the same floor. You may run into problems such as the paint remaining tacky or the paint drying but then lifting. Only use compatible products. If you are unsure what to choose, please contact us and we are happy to help.

First Coat:
The Importance of Priming the Floor

Epoxy Layers

The ‘First Coat’ is also known as the ‘Primer Coat’

Both of our flooring systems, the Single-Pack System and the Two-Pack System, have a recommended first coat. This is also sometimes referred to as a primer coat or floor sealer.

Why do I need to apply a primer sealer first coat?

We always recommend the use of a floor primer/sealer rather than (i) using none or (ii) trying to cut the primer out by applying two coats of a top coat. Quite often, people will think that a priming and sealing the floor is overkill and that a topcoat can be used straight onto the substrate. This is simply not true. Priming and sealing a floor surface is key to preparing for a long-lasting and therefore cost-effective finish. 

What is a floor primer and how does it work?

A primer, whether it is a single or two-pack primer, will dry with different properties to a top coat. A floor primer is a base coat which penetrates the surface of the substrate and acts as an anchor for the top coat. Primer dries with a microscopically undulating surface and gives the floor-paint top-coat something to grip onto, creating a cross-link. The use of a primer ensures adhesion to the floor and a strong, long-lasting surface, when used in conjunction with a floor-paint top-coat.

Can I use a first coat from a different floor-paint system?

Always use the correct first coat (primer) for each system. The single-pack flooring system is made using one type of resin and the two-pack flooring system is made using a different resin. The two are not compatible and will not bond. In other words, the if you use incompatible products, the top coat will simply sit on the surface of the first-coat (primer) leaving it prone to delamination.

Why can’t I choose the colour of the floor primer?

Our floor primers are purposefully produced as a non-descript colour. They are usually either a pinky-red or khaki-grey colour; sometimes other colours. The purpose of the floor primer is purely to seal the floor and act as an anchor for the topcoat. The primer is designed to be seen whilst applying the topcoat, so that the contractor can see the areas that have and haven’t been covered. Do not be alarmed by the colour of the primer.

Can I seal my floor with PVA?

Do not use PVA on the floor prior to applying any of our products. PVA is a not compatible. Should you apply a Regal Paint product over PVA you risk delamination of the paint and non-adherence to the floor. PVA itself is only a temporary measure to seal dust. If you were to use it prior to our products, you would essentially be putting a temporary product onto the floor (the PVA) and then painting a semi-permanent coating over the top (Regal products). If you are painting a concrete floor, PVA will sit on the surface of the concrete and will act as a barrier between the concrete and the floor-system first coat. As the PVA is not durable, it will delaminate and will take the paint with it. Also, because our products are solvent based, they will react with the PVA and make a mess of your floor.

Two-Pack Epoxy Floor Paint System

Applying Two-Pack Epoxy

See our 2 Pack Epoxy Floor Preparation Guide >

Which first coat should I use to prime and seal the floor?

If you are planning to use a two-pack epoxy floor paint top-coat, please ensure that you use the two-pack epoxy floor sealer as the primer coat. This is the only compatible first coat. Any other products will not cross-link with the epoxy top coat and you will risk running into problems.

How to mix two-pack epoxy floor paint

We recommend that you mix Regal Epoxy Floor Paint using a mechanical method. Ideally you should use a mixing paddle specifically designed to attach to a drill. Make sure that you spend adequate time mixing the epoxy. Some components of the pigmented resin (in the larger or the two cans you receive) will be heavier than others and so will naturally sink to the bottom of the can. You must ensure that you really mix well. Be careful, however, not to get too over-excited and mix so vigorously that it causes bubbles in the paint.

What do I apply two-pack epoxy floor paint with?

You do not need to use a roller tray. Apply the paint by pouring directly onto the floor. Use specialist floor roller-sleeves and frames. Do not use ordinary wall-rollers from a DIY shop as they will not have solvent resistance and may disintegrate. You may also want to cut in the edges using brushes.

How does two-pack epoxy floor paint dry?

Two-pack epoxy floor paint dries or cures by way of a chemical reaction. This chemical reaction will begin when you add the activator (in the smaller can) to the pigmented resin (in the larger can). 

Is two-pack epoxy floor paint temperature sensitive?

Yes, two-pack epoxy floor paint is temperature sensitive  For further information, read our guide on applying epoxy resin floor paint in cold weather.

Can I split the can and use the rest later?

We get asked this question a lot. We really do not recommend splitting of the cans. The epoxy resin and activator rely on exact measurements of each in order that the curing process works properly. The quantities are measured by a machine. If you split cans and get the measurements wrong, you risk the paint not drying.

Can I mix different colours of two-pack epoxy?

No. Never mix colours. Each will have different levels of epoxy resin and mixing two different products will affect the level of activator and you risk the paint not drying.

Can I use a different activator with my epoxy resin?

No. Please always use the correct activator with the resin.

Can I paint two coats with one can of epoxy?

No. You must allow at least 24 hours before re-coating. If you apply a coat of wet paint over an existing layer of wet paint, the solvent on the first coat will not be able to evaporate and it will become trapped. Your floor will not dry properly.

How long will epoxy last in the can once mixed?

As soon as the can of activator is poured into the epoxy resin, the curing process will begin. The pot life is up to 4 hours, giving plenty of time to pour and roll the paint out onto the floor. If you leave the mixed epoxy in the can for more than this period of time, it will cure and will solidify in the can. Please ensure you use the epoxy correctly. If you are unsure about any technical aspect of this type of floor paint, please call us on 01782 550733 and we will answer any questions you may have.

Single-Pack Floor Paint System

Preparing floor for single pack paint

See our Single Pack Floor Preparation Guide >

Which single-pack first coat do I use to prime and seal the floor?

If you are going to use one of our single-pack floor paint top-coats, please use Regal Prime and Seal as the first coat to prime and seal the substrate. This is the only compatible first-coat to use with our single-pack top-coats. If you are unsure or need any help in choosing the correct products for your job, please call us on 01782 550733.

How long does it take for Regal Prime and Seal to dry?

Regal Prime and Seal is touch dry within 2-4 hours of application and dry enough to recoat after 24 hours. If the sealer still seems tacky or has shiny patches after 24 hours, please wait a little longer before applying the top-coat.

How soon after priming can I apply the top-coat?

After applying Regal Prime and Seal to your floor, please allow at least 24 hours before applying the topcoat. If you do not allow the primer coat to fully dry, and then paint over it, the solvent in the primer (which is trying to evaporate) will become trapped and the paint will remain soft.

Do I need to stir single-pack floor paint?

Just like anything else, the materials used in paint are subject to gravitational forces. This means that the heavier particles in the paint will sink to the bottom of the can. You will need to ensure that you mix the paint before use to bring the heavier particles up and into the mix. Be careful not to stir to aggressively so as to avoid creating bubbles in the paint. We recommend the use of a mechanical paint mixer which is attached to a drill.

What do I apply single-pack floor paint with?

As with all of our floor paints, a roller tray is not necessary. The best method is to pour directly onto the floor. Use specialist floor roller-sleeves and frames. Do not use ordinary wall-rollers from a DIY shop as they will not have solvent resistance and may disintegrate. You may also wish to cut in the edges with solvent-resistant brushes.

How many coats should I apply?

The answer to this question is entirely dependent on the floor that you are painting and the use that the floor is going to have. A rough and bumpy floor might need more than one coat of top-coat paint. If you need any advice on how much paint you need, please call us on 01782 550733.

How long do I wait between coats?

Please wait 24 hours between each coat.

How long before I can walk on the floor?

Wait 24 hours before walking on the floor and 48 hours before bringing vehicles or heavy goods and equipment back onto the floor.

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Choosing Two-Pack or Single Pack Floor Paint for Painting Concrete

Choosing between a two-pack or single pack system is perhaps the most important decision and will depend on the kind of floor you have, the use for which it is intended and the budget you have for the project. To find out more, check out out guide to painting a floor.

How long should I wait before painting newly laid concrete?

Even though concrete may look dry within a short period of time, it may not be dry enough to paint. The rule of thumb is to allow one month per inch depth of concrete. If your concrete is 6 inches deep, allow 6 months before painting.

How do I check if the concrete is dry?

There are several tests that you can do, but the two most common basic tests are the clingfilm test and the use of a moisture meter. 

Clingfilm Test

  • Tape a 30cm square of clingfilm to the concrete using duct tape
  • Leave for 24 hours
  • If condensation appears on the clingfilm there is moisture present in the concrete
  • Or, if there is a dark patch on the concrete where the clingfilm has been, there is moisture present and the concrete is not dry.

Moisture Meter

  • Using a moisture meter and following the instructions for the chosen apparatus, you should look for a reading of below 8%
Will Regal Paint smooth a rough floor?

You must always prepare the floor surface properly and adequately. A standard epoxy paint will not smooth out the roughness of a floor and will take on the form of the substrate it is applied to.  If you have a particularly rough floor and are looking for a smoother finish, we therefore recommended grinding down the concrete to remove the ridges in the concrete and also cleaning the floor thoroughly prior to application of the sealer coat. The other option is to use a self-levelling epoxy. We do manufacture this product but do not sell it online – please call us with any enquiries.

Can I paint a power-floated floor?

Yes you can, but as power-floated floors are like a polished surface the first coat will struggle to bond with the concrete. You will need to etch the surface of the power-floated floor. We recommend Regal Clean n Etch.



Newly Laid

  • Allow sufficient time for the concrete to dry
  • Run tests to check if the concrete is dry (see article)

Existing Paint on Floor

Please call us on 01782 550733 as specific preparation will be required

Rough Concrete

If you want a smoother finish, mechanically grind the floor or apply a thick self-levelling coating

Dirty Concrete

Clean using Regal Clean and Degrease

Smooth, Power-Floated Concrete

Use Regal Clean n Etch to open the surface of the concrete

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My floor paint is not drying

We quality control and batch test all our products prior to decanting into cans and sending to our customers. If you are experiencing drying issues with your paint, please call us on 01782 550733 and speak to our technical team.

I have used two-pack epoxy floor paint and now have white patches on my floor

White marks on an epoxy floor are due to amine blush/blooming. This occurs when moisture is in contact with the coating as it is being applied or before it is properly cured. This can be due to excessive humidity, condensation and/or applying the product too thickly. If your floor has white amine blush, it can usually be removed by mopping with a 50:50 solution of citric acid and warm water. For more information, read our post on amine blush and amine bloom.

There are pinholes in the paint

Pinholes and bubbling on an epoxy-coated floor appear as small blisters or bubbles.  After the blisters pop, they leave a round crater and the pinhole can be seen in the finish of the paint. The causes of pinholes in an epoxy floor paint are usually caused by ‘outgassing’ – this is where air trapped in concrete voids reacts when fresh epoxy paint begins its curing or exothermal action. The chemical reaction creates heat. This releases moisture into the air pocket making the air within it expand. This naturally forces air to escape from the pore and towards the surface where it and becomes trapped in the coating and then either forms a blister or pops to leave a pinhole. 

There are other things which may cause pinholes to appear; these include: –

  • Temperature/Humidity:  If it is too hot or humid, it can result in rapid drying which causes air entrapment in the coating. 
  • Air Movement:  Air movement from fans, door or vents blowing directly on the surface may cause flash drying. This may cause bubbles which pop to leave pinholes.
  • Sunlight:  Direct sunlight can cause the product to become tacky before necessary air release has occurred, which results in bubbles.              
  • Mixing:  Mixing at too high of a speed entraps air, resulting in bubbles. 
  • Surface Preparation:  Very extreme or aggressive shot-blasting opens the pores in the concrete causing air to be trapped when the coating is applied and this may result in bubbles.  
  • Roller Sleeves:  Not using the recommended floor roller-sleeves.
The paint has dried patchy

Patchy drying usually indicates a problem with the substrate that has been painted. A paint will not ordinarily dry in parts and not in others. Please see our blogs on preparing a surface for painting. If you are concerned about patchiness on your floor, please call us on 01782 550733.

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Painting concrete that is not completely dry

So what happens if you paint concrete which is not completely dry?

Even though you may think that the concrete is bone dry, there may still be moisture in the substrate which needs to evaporate.

Should you mistakenly paint over still-damp concrete, you may find that the paint starts to delaminate. This happens because as the moisture rises during evaporation, it becomes trapped underneath the layer of paint. The moisture has no means of escape and so it literally pushes the paint from the surface.

To avoid this, please always check the moisture level of your concrete. Please see our blog on how to do this. 



Painting a power-floated floor that is not properly prepared

A power-floated floor has a very smooth surface. It is the smoothness that prevents the floor sealer from penetrating and locking with or bonding with the surface. The floor sealer will merely sit on the surface of an unprepared power-floated floor. Then, after a topcoat floor paint is applied, no matter if you buy a cheap or expensive product, with time the sealer and topcoat will peel from the floor. This is known as delamination.

Power-floated floors are expensive and, generally, people who have spent a lot of money on an amazing floor want an equally excellent finish from the paint.

It is absolutely paramount that if you have a power-floated floor you properly prepare it by means of mechanical abrasion or chemical abrasion. The method chosen will depend on how smooth the surface is.

Abrading the floor creates a certain level of roughness on the surface of the smooth concrete. These tiny undulations give the sealer coat something to key into and therefore increases the likelihood of a bond between substrate and coating, reducing the chance of delamination.

We always recommend the use of a sealer coat on any bare concrete floor as the sealer acts as the glue between substrate and topcoat.

For more information, please see our blog on painting a power-floated floor. 

Painting a poorly prepared floor

There are many phrases out there but to coin one: you can’t make a silk purse out of a sow’s ear. Similarly, you can’t create a showroom-finish floor by buying some paint and just slapping it on the floor. It is imperative that you prepare the surface prior to painting. Moisture, dust, dirt and stains, poor quality concrete, air holes in the concrete, too smooth-a-finish etc can all cause issues with paint when it is applied. Similarly you can’t use paint to smooth out a floor by putting it down thicker on bumpy parts of the floor – you will create pools of paint which will surface dry and stay soft underneath as the solvent becomes trapped under the cured top skin.

If you are unsure about floor preparation, please have a look at our blogs or contact us and we are here to help. 

Painting an external floor

Our floor paints are manufactured for commercial and industrial use, usually inside factories, garages etc. Our paints have not been tested for use on an external floor, however we do know that many of our customers use it for this purpose. We always try to explain that with any paints on an external floor, there is a risk that water, e.g. if it rains, may become trapped under the paint as it tries to evaporate and so may lift it. This is always a risk, however many customer are happy to try and have some great results.

Applying the paint too thickly

Our paint is manufactured with a high opacity. This means that there is a good coverage and you don’t get the ‘see through’ effect of some paints you may have bought elsewhere. You don’t need to apply the paint thickly to give good coverage.

Thickly applied paint is likely to take a lot longer to dry. This is especially true when the weather is hot; in hot weather, thickly applied paint will cure on the surface quite quickly as the solvent evaporates and the paint cures at an accelerated rate. However, what happens to the paint below the surface? The solvent which is trying to escape has nowhere to go as it has to battle its way through the hardened surface. So the paint will look dry, may feel dry to the touch, but will most probably still be ‘soft’. If you were to dig your fingernail into it, there may be a mark left. If you were to drive on it, it may leave marks.

If you are experiencing this problem, paint a thin amount of paint onto the lid of the can (if you still have it) and check to see if it dries properly.

If you are unsure, please contact us and we are here to help.

Re-coating before the paint is dry

This is a big no-no! Please always make sure that the sealer coat or first coat of paint is completely dry before overcoating. You shouldn’t really need to do a second application of topcoat unless you haven’t used a sealer. Irrespective of this, any overcoating of uncured paint may lead to problems such as solvent entrapment.

Getting epoxy wet within 7 days

Getting epoxy paint wet without giving it at least 7 days to cure may lead to white patches appearing on the paint. This is known as amine blush or amine bloom. For more information, please see our blog post.

Not using a primer coat

The use of a floor primer coat is always recommended to give you longevity of finish. The primer coat acts as a bond between the substrate and the topcoat. Sometimes people choose not to use a primer coat – this may be due to the cost involved or, for example, if you are moving premises and need to make the floor good before vacating. This is not a problem for a short-term solution. However, to make your floor coating last longer, we do recommend that a primer coat is always used over a bare surface.

Mixing epoxy and then leaving it in the can for hours prior to use

The nature of epoxy is such that once the activator is mixed with the pigmented resin, the chemical curing process begins. Epoxy paint has a pot-life of approximately four hours so do not mix it until you are ready to use it. If you mix the two parts together and then leave it in the can for hours, it will ‘go off’ in the can. It will become a solid, unusable chunk of colour.

Using a roller tray

Using a roller tray may create more problems than it solves. Our paints dry quickly; paint in a roller tray is likely to become crusty in parts, as the residual paint starts to dry. This may then peel from the plastic tray and become mixed in with the paint freshly poured into the tray, creating a bitty or lumpy mix.

We recommend pouring the paint directly onto the substrate and then rolling out with a solvent-resistant sleeve. 

We have application instructions available for you to look at, but we are always at the end of a phone call or email if you would prefer to ask directly.

Not mixing paint properly

The ingredients used to make paint vary in density. Similar to the cream rising to the top of the milk, the less dense particles in paint are likely to reside at the top of the can and the heavier particles towards the bottom. The paint will therefore need a good mix before using. If you do not mix paint properly prior to using, you might find some of the heavier pigments may remain at the base of the can. 

We recommend the use of a mechanical paint mixer which is attached to a drill.

If you haven’t mixed the paint prior to application, you may see streaks of pigment and/or may have curing problems. 

Not adding the activator to the epoxy resin

If you have done this, you are certainly not the first person to make this error. Please always read the technical information which is alongside each of our products online. If you have never used industrial floor paints, whether single pack or two pack epoxy, please contact us as we have a wealth of knowledge to share with you and to help you get the best for your floor from our products.

If you forget to mix the two parts of the epoxy system together, and simply paint the pigmented resin onto the floor, it is not good news. Without the activator, the paint is incomplete – the chemical reaction which starts the curing process cannot happen and the pigmented resin will never dry. It will need to be scraped up off the floor.

Two-pack epoxy is paint is like any other epoxy product, such as glues, which require two parts to be mixed together in order that they work as a whole.


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Industrial Floor Paint made in the UK

What Makes a Good Floor Paint?

Like any manufactured coating, the end product is only as good as the quality, quantities and combination of the raw materials that are used.

As an established business, we have excellent trading relationships with our worldwide suppliers and we source and buy only high-quality resins, pigments and solvents. We do not pack our products with fillers.

Over the last few years, the floor paint market has been flooded with cheaper products. We cannot comment on the quality of these paints, but if you want a coating which has been manufactured with care, using superior materials here in the UK, look no further than us.