Can you stick plasterboard with Hardwall?

Answers. Hi there, Thistle Hardwall is intended as an undercoat for wet plaster; so I wouldn’t recommend using it for bonding dry plasterboard to masonry.

Can you use Hardwall instead of bonding?





Hardwall- it is a gypsum based undercoat plaster used for more absorbent surfaces (mostly on masonry) than bonding. It offers a higher impact resistance and quicker drying. Higher than normal resistance to efflorescence and gives a durable base for the application of decorative finishes.

How do you attach plasterboard to an existing wall?

Deffo tape over the joint between the new plasterboard and existing wall, then feather the new plaster into the existing wall. Or,,,, When skimming the new plasterboard, skim the rest of the old wall at the same time. That way the whole wall will be skimmed.

What do you use Hardwall plaster for?

Hardwall plaster is an undercoat plaster that is most commonly used with masonry backgrounds like bricks and medium-density blocks. Just like the other undercoat plasters we’ve spoken about, hardwall is an ideal base to work with; more so, its easy application is one of the reasons it is so popular.

Do I need to PVA before Hardwall?

Yes. You should put PVA on, but you cannot tile onto hardwall. It will need to be gone over with multifinish and then allowed to dry. A tiling sealer (not PVA) should then be applied prior to fixing tiles.

What’s the difference between Hardwall and bonding?





bonding is a undercoat plaster for low suction background like concrete. hardwall has high impact resistance and is quicker drying.

Is Hardwall better than sand and cement?

Hardwall plaster holds all the UV values building regs require but all light weight base coat plaster only lasts 8-12 years. Sand and cement ticks all the boxes for all solid walls within a property of this type with waterproofing additives add to the mix.

How thick can Hardwall be?

25mm

When a substantial area is covered, Thistle Hardwall is worked and ruled as in hand plastering. It is easier to attain the required thickness of plaster in one application by machine, but the total thickness should not normally exceed 25mm (subject to background suitability).

Is Hardwall plaster good?



Hardwall plaster has high impact resistance. It is one of the quickest drying plasters which is great for most masonry surfaces. Before application, you need to add water to hardwall plaster. You don’t want to overmix this plaster as it can lose some of its qualities.

Can you put bonding on plasterboard?

To put it into context – standard plasterboard is the same – this will also not withstand continued dampness but is fine on a bathroom ceiling. One coat of bonding coat over your existing plasterboards (sealed with PVA if in doubt) can then be ruled flat with a straight edge.

How long does Hardwall take to go off?

Hardwall Plaster



It can take up to 14 days to dry completely. A light colour is an indicator of dryness.

Is Hardwall plaster breathable?



Unlike modern cement-based products and gypsum plasters, which are hard, inflexible and non-breathable, traditional lime and clay formulas have a soft, characterful appearance, offer a degree of flexibility and are breathable. The breathability of wall and ceiling finishes is a very important issue in period homes.

What happens if you don’t PVA before plastering?

The correct mix for pva for plastering is 1 part pva to 5 parts water, and really only used to stop the plaster drying too quickly, plastering over silk paint with or without pva can only be as adhering as the paint before, pva doesnt make the plaster stick to the behind of a painted surface!

Will PVA stick plasterboard?

PVA for Bonding



The other way that PVA becomes useful when plastering is more obvious. Adding a coat of the glue to your wall surface just before you start plastering helps to bond the plaster to the wall. The PVA literally helps to stick the plaster in place in the same way it can bond two pieces of wood together.

Do you use PVA on plasterboard?

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Do you need to PVA before Plasterboarding?



1. The plasterboard does not need to have any PVA applied – you are fine to just apply the plaster direct. However if the plasterboard is old or you are concerned for any other reason -then applying PVA will not cause any problems.

Can you stick plaster board to wood?

Plasterboards can be stuck to most surfaces, including stone, brick, concrete and timber. Attaching plasterboards this way is much quicker than building a stud wall, and requires less technical skill.

Does PVA stick plasterboard?

PVA glue for plaster is highly effective when used as a bonding agent. Because it’s an adhesive, it helps the plaster adhere to the surface of the wall. TIP: Plaster board is not very absorbent, and generally won’t need priming or bonding with PVA.

How do you stick plasterboard to timber?

Quote from the video:
Quote from Youtube video: Both fine and coarse rather the screws have a bugle head to reduce the risk of damaging the plaster board surface during count assembly and have a reduced Phillips number to recess.

Can I use Gripfill for plasterboard?



You could use Gripfill or the like but at £4 per tube and you would need maybe 4 tubes it doesn’t make sense. Plus the plasterboard adhesive is sticky stuff and it’s a right bugger to clean off your tools. A 100,000 plasterers can’t be wrong. But i do admit gripfill does have it’s place.

Can you fix plasterboard with no nails?

There’s no need to hammer in nails or screw in screws, nor will you have to mix traditional dot and dab plasterboard adhesive together with water in a bucket and then use the rather messy method of applying it with a board and trowel. Virtually all that’s required is the adhesive cylinder and a sealing gun.

Can you put raw plugs in plasterboard?

Fitting Plasterboard Wall Plugs



Wall plugs cannot be screwed directly into plasterboard, they require a hole to be drilled first. But before you drill any holes into your walls you should first use a stud finder or multi detector to check for pipes and wires within the wall.

Can you use brown plugs in plasterboard?

There are a variety of fixing available just for this but what you cannot do is use ordinary wall plugs. The wallplugs do expand as you screw into them, but the plasterboard is soft and the expansion simply widens the hole you have put the plug into.

How do you attach something heavy to a plasterboard wall?

A great way to attach a heavy item like a TV to a plasterboard wall is by attaching to the wooden studs rather than the plasterboard panels. Using a stud finder you can locate the wooden studs within your walls, and drill directly into them with screws.