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What Is Blue Grit?

If you’re resurfacing on the likes of concrete, plaster, glazes tiling and painted surfaces, chances are that you’re going to need to use Blue Grit – but what is blue grit? Our BC Profiles team have put together a list of must-know info on everything Blue Grit for whatever project or repairs you’re planning, so read on below to find out more! 

What is Blue Grit? 

Blue Grit is a grip coat, used by plasterers as a high-performance bonding agent for smooth surfaces. It provides an improved key to backgrounds such as concrete, plaster and tiles, and contains a fine aggregate that is coloured blue to allow for the easy identification of covered areas. Blue Grit is available in both 5litre and 10litre tubs. 

What is Blue Grit used for? 

Blue Grit is chiefly used to create a smooth surface, this aids with applying the likes of concrete, paint, plaster and tiles onto walls. It also enhances the grip and bonding between materials, meaning that the application is incredibly strong and long-lasting. 

How do I apply Blue Grit?

Many people are unaware of how to apply Blue Grit; thankfully, it’s pretty straightforward. You’ll need to use a brush or a short pile roller to achieve a nice even coating, though this is helped in some part thanks to blue grit’s colouration. 

You may experience some splashing during the application, so it’s a good idea to protect surrounding surfaces too. Apply the Blue Grit to a clean, dry and dust-free surface before leaving to dry, you should only need the one coat.  

How long does Blue Grit take to dry?

Generally speaking, Blue Grit takes 24 hours to dry. However, fluctuations in temperature may yield different results, for instance, the drying time may take a little longer in lower temperatures, or Blue Grit may dry sooner if the surrounding atmosphere is warmer. 

Can you Blue Grit over wallpaper?

You should always remove any wallpaper before plastering if the plaster is to properly adhere to the wall. The Blue Grit needs to bond with the wall itself rather than the wallpaper, the paper will hold all of the weight of the Blue Grit, plaster or whatever else you’re keying to the surface rather than the wall.

What is Blue Grit made of?

Blue Grit is an aggregate comprised of sand and crushed stone, the two combine to provide a grip-based solution which allows you to create a smooth surface. 

Searching for more product information and handy DIY how to’s? Don’t miss our BC Profiles help and advice page.

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