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Can hardwall be used outside?
they told me that you can use hardwall on solid 9″ external walls only if they are dry, hardwall did replace renovation plaster as they were basiclly the same. they also recommend dri coat for solid walls that have had a damp course injection.
Where should Hardwall plaster be used?
Hardwall Plaster: Hardwall is similar to Browning except that it offers a higher impact resistance and quicker drying surface. It is the most often used undercoat plaster these days, and can be applied to most masonry surfaces.
Can you hardwall over render?
It will adhere fine, as it’s designed to go over brick and blockworkyou don’t pva, just wet the wall, but you would be better with either sand and cement or a renovating plaster due to the possibility of damp coming through. Gypsum will soak and hold it like a sponge.
What is hardwall used 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.
What’s the difference between bonding and Hardwall?
Bonding– it is a gypsum based undercoat plaster for low suction backgrounds like tiling, dense concrete blocks, engineering bricks, concrete, plasterboard surfaces. Hardwall- it is a gypsum based undercoat plaster used for more absorbent surfaces (mostly on masonry) than bonding.
How much does a bag of Hardwall coverage?
Thistle HardWall Order Code Nominal bag weight (kg) Approx coverage (m²) 06110/3 25 3.0.
Do I need to PVA before Hardwall?
4 Answers from MyBuilder Plasterers 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.
Can you tile directly onto Hardwall?
You can tile onto hardwall and it will last, and you can get hardwall closed in good enough with fat to help the tiler.
How thick should Hardwall plaster be?
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).
What is plaster renovation?
Renovating Plaster is a pre-mixed, dry-bagged, lightweight, cement based plaster containing perlite which has been developed to control dampness passing through the plastered walls of old properties.
What is a hard wall?
Thistle Hardwall is a gypsum undercoat plaster for use on most masonry. Thistle Hardwall is a lightweight, retarded hemihydrate, pre-mixed gypsum plaster, incorporating special aggregates and additives, requiring only the addition of clean water to prepare it for use.
Can I plaster straight onto brick?
Plastering directly to bare brickwork or blocks, known as ‘wet plastering’, is still favoured by some for its superior soundproofing. A cement render or gypsum backing (known as a scratch coat) is first trowelled directly onto blockwork before this is finished with a thin skim coat.
Can you put Hardwall on plasterboard?
Thistle Hardwall is not suitable for plastering onto frozen backgrounds but it may be used under frosty conditions provided that, after plastering, the surfaces are adequately protected from freezing.
Can you use Hardwall in a bathroom?
2 Answers from MyBuilder Plasterers You can dryline the shower walls using Aquaboard and wet plaster over that. Or depending on the substrate, the plasterer will use either Gyproc Hardwall or Gyproc Bonding. Providing the area is fully tiled, any one of these methods will be okay.
What can I use instead of bonding?
What is another word for bonding? adhesion adherence tie sticking union fixing coherence gluing US cohesion glueing UK.
How soon can you skim over bonding?
Bonding about 2-3 hours, but some do leave it to following day before skimming depends on size of area. The 3-4 days is a guide, the colour of the plaster will tell you when it’s dry enough to paint. Need to leave decent time between paint coats, for each to throughly dry before applying the next one.
What area will a 25kg bag of plaster cover?
bags the coverage is 4-6 square metres per 25kg.
What’s the difference between Browning and bonding?
What is the difference between browning and bonding plaster? Bonding is a undercoat plaster for low suction background like concrete. Hardwall has high impact resistance and is quicker drying. Browning is a undercoat plaster for moderate backgrounds with adequate mechanical key.
What is Devil float?
[′dev·əl ‚flōt] (engineering) A hand float containing nails projecting at each corner and used to roughen the surface of plaster to provide a key for the next coat. Also known as devil; nail coat.
How much water do I mix with Thistle Hardwall?
According to British Gypsum, you should mix 11.5 litres of water to one bag of multi-finish plaster.
Do I need to PVA between coats of plaster?
You want the diluted PVA to be sucked into the plaster to create a good bond between the plaster and whatever it is you’re applying on top of the PVA. If your plaster is not completely dry, the PVA will sit like a layer on top of it. The only way it’ll get sucked in is if the plaster is bone dry.
Can you tile onto Thistle bonding?
No, tiles should not be applied directly to Thistle undercoats, with the exception of Thistle DriCoat.
Can you tile over multi finish?
At least its new plaster so if it’s been applied correctly, then it’s unlikely to delaminate. Make sure it’s dried out well, couple of coats of primer then off you go. You’ll need flexible tile adhesive (bagged) for porcelain.
Do I have to plaster before tiling?
Concrete, plywood, drywall or painted surfaces, tiling requires appropriate preparation. Fresh plaster takes up to 30 days to dry and wooden surfaces can use a layer of polyurethane paint.
How long does HardWall plaster take to dry?
Types of plaster Type of Plaster Use Setting Time Dry-coat Plaster Used for resurfacing areas with a new DPC 1.5 Hours Tough-coat Plaster High strength under coat 1.5 Hours Hardwall Plaster High impact under coat 1.5 – 2 Hours Browning Plaster Under coat for highly absorbent surfaces 1.5 – 2 Hours.
