Is Carlite bonding better than sand/cement render?

When renovating a property, it may be necessary to strip back and replaster the internal walls.

But what products should you use to get a top-quality, long-lasting finish that offers good insulation yet avoids condensation?

Some people consider using Carlite bonding for this task, but is it better than a sand/cement render, and is there another alternative to consider?

What is Carlite bonding?

Carlite bonding plaster is a durable and versatile backing coat, that offers good versatility in terms of the decorative finishes you can achieve. However, the downside is, that it does take a significant time to dry – normally up to four hours.

Is Carlite bonding ok for internal brick walls?

There are many types of plaster used on internal walls in the UK; Carlite bonding is just one type of plaster.

Plaster is normally applied in two coats:

• First, there’s the backing coat (undercoat). This works to even out the wall surface, removing any holes or cracks
• Then there’s the skim coat (topcoat), which creates a smooth and even finish

If Carlite bonding is used, bear in mind this is a gypsum-based bonding plaster, therefore it will absorb moisture and react with the salts in the wall, showing up as damp. If the area is prone to damp or moisture, perhaps a sand/cement render or dot-and-dab plasterboard solution would be better suited.

Alternatively, there are a number of other types of plaster that can be used as a backing coat.

Undercoat plaster options

Two popular types of backing coat plaster are Hardwall plaster and Browning plaster.

Hardwall plaster

Hardwall plaster is extremely durable, easy to apply, and has a relatively fast drying time. It’s often considered the best match for masonry walls, be it brick, cement blocks, stones, or marble. However, if the wall underneath isn’t stable, it could cause the plaster to crack.

Browning plaster

Another option is Browning plaster. This creates a solid, even undercoat. It’s a popular choice for applying on top of brickwork and other absorbent surfaces.

Hardwall plaster or bonding plaster

Hardwall plaster tends to be better suited for large areas. Bonding plaster works best for building out around door frames and fireproofing or when used as a thin layer to even out particularly uneven surfaces such as walls that have had existing tiling removed.

Hire a professional for the job

Plastering is a skilled profession. While many keen DIYers will try plastering in their own home, there are a number of ways it can go wrong, resulting in cracked walls, damp, and mould.

For professional, long-lasting results, saving you time and hassle, search our leading directory to find approved plasterers in your local area.