Asphalt Care: Rejuvenator Or Sealant?

Prevention is better than the cure.

We take precautions all the time with our bodies and our health. In summer we wear sun cream protection, so what about your asphalt pavement, all freshly laid?

If you think about it, an asphalt surface is like the skin on top of the body.

Like your skin, it needs protection against everything the sun and weather can throw at it.

But even more than that, wouldn’t it be great to be able to give it a helping hand and make it even better than just “okay”?

If you could protect and rejuvenate your skin, you would do, so why not do the same for your asphalt road?

As an asphalt paving contractor in Chicago, you want to do the best you can for your clients’ driveway or highway.

Fortunately, a bit like a face cream, it is possible to both protect and rejuvenate your asphalt road.

But what is the difference between an asphalt rejuvenator and a sealant? And which ones should you use on your asphalt driveway or parking lot?

WHAT IS ASPHALT REJUVENATOR?

Asphalt rejuvenation is reversing and repairing the chemicals within asphalt that have started to deteriorate.

Basically, the degeneration process starts the moment that the asphalt driveway is laid. Because, like your skin, it begins aging almost instantly.

HOW IS ASPHALT REJUVENATOR DIFFERENT TO SEALING?

A rejuvenator has solvent and oil in it – that gets beneath the surface of the asphalt and rejuvenates it. A bit like a jar of moisturizer does!

The rejuvenator works by penetrating deep into the asphalt and goes into the binder, replenishing its lost tars and oils. The oils and tars have been destroyed by the process of oxidation. This application helps to add additional strength to the asphalt.

Once applied, the pavement should be sealed firmly against air, chemicals and water.

This should significantly slow down any further destruction and oxidation which threatens the longevity of your driveway or pavement.

Asphalt rejuvenation has won endorsement from various professionals in the field including the senior civil engineer of Houston, Texas.

According to the experts an asphalt rejuvenator can act as a significant preventative procedure and helps a road, driveway or pavement extent its useful life and also cut down on maintenance expenses.

THE BENEFITS OF ASPHALT REJUVENATION

  • It gives asphalt binder a new lease of life
  • It brings flexibility to the asphalt surfacing
  • It replenishes the oils lost through oxidation
  • It seals the asphalt pavement from any contamination
  • It adds extra life to the asphalt

THE TYPES OF ASPHALT SEALCOAT

To further confuse the matter, in addition to the choices between a rejuvenator and a sealcoat there is also the question of which type of sealant to use.

There are basically two; a coal tar sealant and an asphalt based sealant.


COAL TAR SEALANT

Coal tar sealant was on the scene first.

This is a hard coating which is very durable. It stops liquid damage from gasoline and oil getting into the base of an asphalt construction.

Coal tar sealant may be easier for the driveway paving contractor in Chicago to work with than an asphalt based sealant, as it can be applied in a wider range of weather conditions.

However, it is not without its disadvantages and coal tar sealant has been banned in some areas of the United States for its carcinogenic properties.

ASPHALT EMULATION

An asphalt based sealant is more environmentally friendly than coal tar is and does not stain surfaces either.

However, unless they have been added to, an asphalt sealcoat won’t be as strong as the coal tar sealant. Once the additives have been applied it will be just as good, however.

This is an aesthetically pleasing product, which is reasonably affordable to use.

To conclude, all three options have their advantages, although the preferences are usually personal ones.

Plastering: A Step By Step Guide

Plastering is an extremely skilled job – but if you are up for a challenge, here’s the basics on how to do it right!

YOU WILL NEED:

Dust sheets and masks

A knife

Plastering trowel and hawk

Plastering and devilling float

PVA glue

Screen tape

Clout nails

PVA glue

Emulsion tray and roller

Corner beading

Board finish plaster

2 buckets

Spray gun

Stirring rod

Cloths

  • PREPARE

Put down a dustsheet and wipe the walls. Plug any cracks there may be with screen tape. This can also be used to cover the joints with plasterboard.

  • APPLY THE PVA

Dilute the PVA 1:4 with water. Place PVA mix on the roller and apply. Make sure you follow the manufacturer’s instructions carefully.

  • MIX THE PLASTER

Wearing the dust mask, now mix the plaster with cold water until it resembles custard – remember, no lumps!

NB the plaster goes into the water and never the other way around.

  • APPLICATION

The first coat is applied with the float, trowel and hawk board.

The plaster goes on the hawk board with the trowel and the float pushes it from there, onto the wall.

Start in the bottom left corner and work upwards.

Use small amounts and apply hard on the float for the best results.

  • SKIM IT AND SMOOTH IT

After the first coat has dried for twenty minutes, you smooth any lumps with the trowel.

Ensure you smooth the whole wall to the corners, you can use a brush to get the edges right.

  • SCRAPE

Not always necessary, but the surface can be scraped before the second coat goes on. This helps it to stick properly and can be done with the devilling float.

A devilling float is a wooden float with nails. If you don’t have this, use a fork.

If you choose to skip this stage, then apply the second layer when the plaster is still wet.

  • THE SECOND LAYER

The second coat is thinner than the first and should be diluted further. This layer should be no more than 2mm.

Allow the plaster to dry a bit.

  • FINISHING OFF

When the second coat has dried a bit, it should be polished.

Firstly, spray a little water onto the edges and smooth it with the trowel, using inward strokes.

Once again, a wet brush may also be used to do this and the entire surface should be finished with a clean float.

After the whole plaster has dried, use sand paper to smooth it once again.

  • PRIME IT

Before painting or papering, you should use either an undercoat or wallpaper adhesive to get the best results from your newly plastered wall.

Follow these nine steps to the perfectly plastered room!