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Mastermix General Purpose Mortar Mix – Premium Trade Quality
We deliver to most NZ job sites!
Minimum Order Quantity: 40-50 bags of 20kg each
Mastermix General Purpose Mortar Mix NZ is a high-quality, batch-mixed product designed for consistency, strength, and superior workability. With added plasticiser for a smoother, buttery mix, this mortar places and floats off with ease, ensuring a professional finish on every job. Suitable for both original construction and repair work,
Mastermix Mortar Mix is trusted by tradies across New Zealand for its compliance with NZ standards and long-term durability. Whether you’re building new walls, repairing blockwork, or plastering surfaces, this general purpose mortar mix is the go-to choice for dependable results.
Key Features and Benefits
- Trade quality product – designed for professional construction and repair jobs.
- Washed & graded sand, cement & plasticiser – for optimal strength and workability.
- Batch mixed for consistency – ensures every bag delivers the same reliable results.
- Plasticiser added – creates a buttery mix that spreads, places, and floats off easily.
- Excellent finish – achieves smooth, durable results on brick, block, and plaster work.
- Complies with NZ Standard 4210:1989 – meets the Code of Practice for masonry construction.
- High compression strength – 41.0MPa after 7 days, 55.0MPa after 28 days.
- Versatile applications – ideal for bricklaying, block laying, and plastering.
- Durable performance – engineered to last in demanding construction environments.
- Trusted by builders NZ-wide – proven reliability in both small and large-scale projects.
General Purpose Mortar Mix Strength and Compliance
Independent OPUS laboratory tests confirm that Mastermix General Purpose Mortar Mix has a compression strength of 41 MPa after 7 days and 55 MPa after 28 days. It meets NZ Standard 4210:1989 Code of Practice for masonry construction.
Perfect for a Range of Applications
Mastermix General Purpose Mortar Mix is suitable for both small DIY jobs and large commercial projects. Ideal applications include:
- Brick and block laying
- Plastering
Packaging and Coverage
Mastermix General Purpose Mortar Mix is packaged in 20kg weatherproof bags with a 3-month shelf life when stored in cool, dry conditions.
As a guide a 20kg bag of Mortar Mix will lay approximately 27 off x 200 series bricks and 40 off x 70 series bricks.
Mixing and Curing Instructions of General Purpose Mortal Mix
Each 20kg bag should be mixed with 2.7L of clean potable water (135mL of water per 1kg of Mortar Mix), giving you precise control over project quantities.
The ambient temperature affects the curing time of Mortar Mix. It is best used in temperatures of between 7°C and 25°C. The water content will also affect the curing time. For cracks and breakouts: Simply pour the mixture into the cracks to level up and leave. For corroded areas: Pour onto the area and squeegee over to cover the affected area evenly. The product will set quickly to form an abrasive, resistant and flexible repair.
Warranty and Customer Assurance
Mastermix reviews each warranty request individually. Coverage is available when approved Mastermix product applicators are used, reflecting our commitment to delivering a professional, reliable product for every project.
We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at BuildQuip:
· Great Service. We pride ourselves on the best service, anywhere.
· We understand sometimes there are emergencies. Even if the product(s) you require are not listed or if you have an emergency, feel free to get in touch.
· Price Match Service. We will aim to match or beat any other online price. See our Price Match page for details.
· 14 Day Easy Returns for all non-consumable products. If you are not happy with your product, we'll take it back - no questions asked. See our Easy Returns page for details.
· Your Satisfaction Guaranteed. We handpick our products for quality, we know you'll love them. But is there is ever something wrong, we'll fix it.
Reinforcing / Mesh Deliveries
Our shipping calculator at our checkout page is set to calculate the delivery cost for a full 8 Tonne load delivered to the Auckland and Christchurch area (within 30km). For any other regions or if you have a smaller load, please request a delivery quote through our Get A Quote page.
Unless we provided you with a specific date, all reinforcing products will usually ship out within 2-3 business days. All reinforcing bars that need to be cut & bent (such as links, stirrups, corner bars & starter bars - if they are not in stock) might only be shipped within 2-5 days to allow for the bars to be cut and bent, depending on the workload of our manufacturers.
All our Reinforcing / Mesh deliveries are usually made via flat deck truck to our Customers' business or construction site. Small orders can be offloaded by hand. For larger orders our Customers need to provide a forklift / crane / digger / manitou to offload at site - alternatively please contact us if Hiab truck delivery is required.
Fencing, Waratahs & Barriers
Our shipping calculator at our checkout page is set to calculate the delivery cost for a truck load delivered to the Auckland and Christchurch area (within 30km). For any other regions or if you have a smaller load, please request a delivery quote through our Get A Quote page.
Unless we provided you with a specific date, all fencing / barrier products will usually ship out within 2 business days.
All our fencing / barriers deliveries are usually made via flat deck / curtainside truck to our Customers' business or construction site. Small orders can be offloaded by hand. For larger orders our Customers need to provide a forklift / crane / digger / manitou to offload at site - alternatively please contact us if Hiab truck delivery is required.
Machinery (compactors / saws / concrete mixers /etc.)
We aim to ship out all orders the next business day after receiving payment.
We can provide a custom quote to deliver your order to your business address - please request a delivery quote through our Get A Quote page.
Alternatively our shipping calculator at our checkout page will calculate the cost to deliver your order to your closest Mainstream / Mainfreight Depot and must be collected within 3 working days after reaching the Depot.
Order Confirmation
As soon as we receive your order we automatically check to confirm that your order is in stock and available for immediate shipment. If your item(s) are available for immediate shipment we will process the charges and get to work preparing your order for shipment.
If your order is not available for immediate shipment, then we won't charge your card and we'll reach out to you via e-mail to find out if you'd be happy to wait a few days or make alternative arrangements.
Damages
Please inspect the packaging of your item(s) when they arrive, if you notice any damage you should make note of it when signing for delivery or do not agree to accept the delivery. If you do accept delivery you are required to immediately take photos using your smart phone or camera of the damaged packaging or products inside the packaging. If your item(s) do arrived damaged please send photos to support@buildquip.co.nz then visit our Easy Returns page and lodge your return claim online.