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Got allergies? Here's an answer! Print E-mail
Over time, the surface of the concrete slab in your house gives off concrete powder.  With movement, this powder then makes its way through the base of your carpet and in to the pile.  This can be the source of problems for anyone who suffers from allergies.

A solution to this is to seal your entire concrete slab with Concrete Guard before the carpet is laid down.  This will prevent particle separation from the surface of the concrete; a source of irritation that you might not otherwise have considered dealing with.
Use Concrete Guard as a curing agent for new concrete! Print E-mail
When concrete is 'drying' it is a chemical reaction that provides the strength of the concrete, not the evaporation of water.  Curing is the maintaining of satisfactory moisture content and temperature in concrete.  Curing begins after placement and finishing so that concrete may develop the desired strength and hardness.

If concrete dries out too quickly, the water required for the chemical reaction will no longer be present and as an end result the concrete will be too weak.

Temperature is also a factor in the curing of concrete.  This is not only because the rate of evaporation depends on the temperature, but also because it alters the speed at which a chemical reaction can occur.  For this reason the fresh concrete can not be too cold (as it will take too long to cure) and can't be too hot (water evaporation occuring before curing takes place).  In desert regions it is not uncommon for tradesmen to only place fresh concrete in the evening to slow down the rate of evaporation.

An additional factor is the level of wind, as it can also cause the rapid drying of the concrete.

Why cure?

Concrete needs to be cured to achieve its maximum strength.  Concrete in a dry environment can lose as much as 50% of its strength compared to concrete which is moist cured.   Also, concrete placed under dry conditions will gain early strength quickly, but will suffer from a reduced final strength.  Concrete placed in cold weather takes longer to gain strength, resulting in a delay before form work can be removed and construction continuing.

Cured concrete has improved durability, especially for non-air-entrained concrete that has been exposed to cold conditions during construction.  It also has a better surface hardness and is much more water tight.

It also has better serviceability and appearance, with reduced crazing, dusting and scaling.  Concrete that has dried too quickly will have a softer surface that has poor resistance to wear and gives off dust too easily.

How to Cure

There are a number of methods used to ensure the moisture and temperature are correct for the proper curing of concrete.  These include thermal blankets for colder climates, coverings to protect from excessive wind, continuous sprinkling with water (not allowing the concrete to dry out between sprinklings) or the use of damp earth / sand / sawdust to cover the concrete.  Liquid membranes may also be used to trap in moisture.

A lot of these methods should not be used for concrete where appearance is important.  Sawdust can result in tannin stains, using earth/dirt is self explanatory and plastic sheeting will make dark streaks wherever a wrinkle or fold mark touches the concrete.

Concrete Guard can be used as a curing agent for concrete as it can be applied on the same day as the concrete has been placed.  No additives are required.  As soon as there is no bleeding or pooling of water on the surface of the concrete, you are ready to apply.

Same day application makes Concrete Guard better choice than other sealers available on the market.  By applying straight away you minimise the chances of surface contamination by on-site materials such as timber off-cuts.  Most other sealers require you to either wait anywhere from 14 to 28 days or perform alkalinity or moisture level tests before application.

Apply Concrete Guard in the usual manner with a slight moistening of the surface with water, followed by the application of Concrete Guard itself.  Do this in accordance with the instructions on the label.

Concrete Guard will give a penetrating seal of the surface whilst still allowing the concrete to 'breathe', meaning that moisture can still escape from the concrete.  This rate of evaporation, however, is much lower compared to unsealed concrete and this in turn allows the concrete to cure properly.

The application of Concrete Guard is touch dry in as little as 20 minutes and heating blankets (to assist curing temperature in colder climates) can then be applied if required.

The Concrete Guard benefit

By far the best benefit from using Concrete Guard for curing is that you capture the look of your concrete in its most pristine condition with minimal preparation work required before sealing.

One of the exceptional properties of Concrete Guard is that it can be applied the same day to fresh concrete.  (Just make sure that any surface water is no longer present.)  When Concrete Guard is applied at this stage of the concrete curing process, it then additionally acts as a curing agent. 
Use a roller to apply to stencilled concrete surfaces Print E-mail
One of the things you must look out for when applying Concrete Guard is that it is not allowed to pool in recessed areas. 

With stencilled concrete, the space between the pattern objects is at a deeper level than the surface of the sprayed patern.  This depth is due to the masking tape that is laid down (before the stencil is applied) and then removed once the coloured concrete has been applied.

So how do you avoid pooling of the sealer?  Avoid using an airless spray gun in this circumstance.  Apply with a roller brush instead.  The knapp of the roller will draw back any excess sealer from the recessed areas and makes it easier to achieve an even uniform coverage of Concrete Guard.

No more overspray problems! Print E-mail
If you have ever used an old style sealer before, you may be aware of the issues involved with overspray when applying sealer to concrete areas with brickwork adjacent.  Any overspray would show up on the bricks in an obvious manner.

With Concrete Guard, overspray doesn't show on bricks!  Tradesmen are amazed at this and wonder how it can be.  (Not the easiest thing to explain).  The good news is that you don't need to be concerned about overspray.  As always, it's a good idea to keep your application of Concrete Guard on target in order to minimise wastage.
What other materials can we use Concrete Guard on? Print E-mail
Concrete is a porous material.It's understandable to think from the name that Concrete Guard is only meant to be used on concrete.  Concrete has a porous structure and Concrete Guard makes use of this in terms of how it works.  Likewise, any other porous material will benefit.

These include:

Grout:  Great for water proofing the grout between tiles in a shower, bath or laundry area.

Unglazed tiles:  These too will absorb fats, oils and other substances.  Concrete Guard will protect their appearance and keep them easy to clean.  Terracotta tiles are included in this category.

Slate:  Unlike most sealers, Concrete Guard can be used successfully on slate.

Pavers:  Just like concrete, pavers are another obviously porous materials that will benefit from sealing with Concrete Guard.

Sandstone:  Interestingly, sandstone is actually quite a weak building material.  The good news is that in addition to the usual benefits, the application of Concrete Guard will actually improve the strength characteristics where it is applied.

Granite:  As long as your granite has not already been polished, Concrete Gurd can be used to seal this material.

The key to all of these materials is that they have a porous structure which will absorb the water based penetrating sealer that Concrete Guard is.

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