Table of Contents
How much water do I mix with Thistle Hardwall?
Using Thistle Hardwall onto breeze blocks (internal wall). No Nonsense PVA suggests 3 PVA to 1 Water for concrete or mortar application.
How many m2 does a bag of Hardwall coverage?
Thistle HardWall
- Cached
| Order Code | Nominal bag weight (kg) | Approx coverage (m²) |
|---|---|---|
| 06110/3 | 25 | 3.0 |
Can you put Hardwall on plasterboard?
Hardwall Plaster: Hardwall is similar to Browning except that it offers a higher impact resistance and quicker drying surface. Board Finish: Board finish plaster is used on surfaces with low – medium suction. Plasterboard and Dry-Coat plaster will accept Board Finish well.
How thick should bonding plaster be?
How thick should a bonding coat be? Floating coats should be applied at a thickness of 8mm, up to a total plaster thickness of 25mm, and wire- scratched between each coat. The final floating coat should be ruled to an even surface and lightly scratched to form a key for Thistle Multi-Finish.
Does Hardwall go off?
Kitchy said: Mate hardwall goes off quick in the best of times is it really worth it in using 2 bags!Mar 3, 2016
Does plastering add value?
Do you have marks on your ceiling? A plastering pro can help with that, too. Buyers aren’t going to be interested in your home if there are holes in the walls, so this is an especially important project. While they may not add value to your home, they will impact the final selling price of your home.
How long does Hardwall take to go off?
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.
How much does a 25kg bag of plaster cover?
One 25kg bag of magnetic plaster will cover five square-metres if applied at 3mm thickness.
Can you use Hardwall on external walls?
On an external wall that is single brick you must use sand and cement. out of line etc Straight walls, pre-mix plaster, hardwall etc or sand and cement(lime aswell). Use multi finish for top coat. PS walls will need to be prep with PVA or build grit depending on surface requirements.
How do you mix Hardwall?
Thistle Hardwall is pre-mixed with aggregate and only clean water needs to be added to prepare it for use. Hand mixing should be carried out in a clean tray or bath. Excessive mechanical mixing should be avoided. Tools and water used in mixing must be clean.
Can you tile directly onto Hardwall?
If you want a surface to tile, sand and cement is the one, but any sound skimmed surface will do you. You can tile onto hardwall and it will last, and you can get hardwall closed in good enough with fat to help the tiler.
Can I skim over wet bonding?
Brummie Taffy New Member. Can skim over bonding after a couple of hours or so which should be enough time for it to set. Can leave til next day if big area for instance and then wet down or use pva on it. If skimming over straight after set then skim straight onto.
How many m2 should a plasterer do in a day?
Thesedays on site you have to do minimum 60m2 a day to make it pay.
Can I use bonding plaster to fill holes?
Bonding coat can fill large holes/chunks. It’s all in the mix – your looking for a whipped cream consistency. I find it makes it very easy to apply. Slap it on and leave it rough, don’t try to finish it when it’s just been applied.
Can you plaster a room in a day?
Plastering is one of those trades where time is of the essence. You are essentially paying for his skill and not the time taken. That usually means doing it in one day. But there may be preparation that needs to be done, which could add to the time required.
What’s the difference between bonding and Hardwall?
bonding is a undercoat plaster for low suction background like concrete. hardwall has high impact resistance and is quicker drying.
How long after bonding can I skim?
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.
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.
Why is Hardwall plaster cracking?
If the background has a lot of suction/or is very dry, the plaster will crack as the moisture is absorbed too quickly into the substrate,, it needs prep first, to control the suction. Too much heat will do the same by drying the plaster to quickly causing it to shrink and crack.
Which plaster is best for walls?
Cement plaster is the best bet when it comes to plastering exterior walls because it is moisture-resistant and will protect the wall against climate changes as well as environmental pollution. Moreover the durability factor in cement plaster makes it the ideal choice for internal plastering too.
Is SBR better than PVA?
One key difference is that, whereas PVA remains water soluble after drying, once dry SBR is not. Consequently, the SBR bonding agent is more suitable for situations where damp might be a factor, such as external finishes, shower areas and swimming pools, as well as in sand or cement screeds and renders.
Can you plaster over wet Hardwall?
You can plaster directly over hardwall the day after. As Wine~o said, pva either day before or prior to skimming. Try not to over saturate the hardwall as it will blister. Blue Grit will give a much longer workable time.
Do you 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.
What’s the hourly rate for a plasterer?
The average salary for a plasterer is £18.24 per hour in London.
