K-Rend GP Mortar ( MIX ) 25KG Bag

K-Rend GP Mortar ( MIX ) 25KG Bag


Regular price £7.58 Excl. VAT
£9.10 Incl. VAT
Sale price £7.58 Excl. VAT
£9.10 Incl. VAT
Regular price
*For business & Trade Accounts only.
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Key Information

Product Information

K-Rend GP Mortar (MIX) 25KG Bag

K Rend GP Mix is a versatile, general-purpose dry mix rendering and masonry mortar that’s ready to use — just add water. Designed for convenience and performance, it’s suitable for use with both brick and block, whether as a masonry mortar, rendering mortar (float coat), or bedding mortar for paving. This high-quality mix can be applied by hand using a hawk and trowel or mechanically with electric or diesel spray machines, making it ideal for professional tradespeople and DIY users alike. With advanced cement replacement technology, GP Mix not only delivers outstanding performance but also contributes to a reduced carbon footprint. Perfect for both internal and external applications, it offers improved air-tightness, sound insulation, and reliable long-term durability. Each factory-produced batch ensures consistency, eliminating the need for on-site mixing and reducing waste.

Key Benefits

  • Can be hand-applied or sprayed through electric and diesel machines.
  • Suitable for one coat, two-pass applications on medium-density blockwork.
  • Usable internally and ready to receive a gypsum-based plaster.
  • Low embodied carbon thanks to cement replacement technology.
  • Enhances air-tightness and sound insulation in concrete block walls.
  • Eliminates on-site mixing, minimising waste and labour time.
  • Factory-produced for consistent performance and quality.
  • Contains additives for improved workability and ease of use.

Technical Information

  • Brand: K Rend
  • Coverage: 1m²
  • Weight: 25kg
  • Warranty: 10 Years

FAQs

Can K-Rend GP Mix be used both indoors and outdoors?

Yes, K-Rend GP Mix is suitable for both internal and external applications. It can be used as a rendering mortar, masonry mortar, or bedding mortar for paving, making it a highly versatile product.

Do I need any additional materials to use this product?

No additional materials are needed — just add clean water and mix thoroughly. The pre-mixed formulation eliminates the need for on-site batching or blending.

Can K-Rend GP Mix be applied with a machine?

Absolutely. It’s designed for use with both electric and diesel spray machines, as well as for traditional hand application using a hawk and trowel. This flexibility makes it ideal for various site conditions and preferences.

Why Choose Us

At JJ Building Materials, we're committed to supplying quality building products at competitive prices, backed by the service and expertise you'd expect from an established independent merchant. Whether you're a trade professional managing large-scale projects or a homeowner taking on a DIY renovation, we're here to help you find the right products for the job.

As part of the JJ Roofing Supplies Group, we build on decades of experience supplying construction materials across the UK. We've expanded beyond roofing to offer a growing range of building materials, including timber, insulation, landscaping products, plumbing supplies, flooring, doors, bricks, fencing, garden buildings and much more – all available to order online with nationwide delivery.

We work with many of the industry's leading manufacturers to bring you trusted products that meet the highest standards of quality and performance. Our team is passionate about providing excellent customer service, competitive pricing and a straightforward shopping experience from start to finish.

When you shop with JJ Building Materials, you can expect:

  • Competitive prices on leading brands and quality products.
  • Nationwide delivery across the UK
  • A constantly expanding range of building and landscaping materials.
  • Friendly, knowledgeable customer support.
  • A trusted business backed by the JJ Roofing Supplies Group.

Delivery

Every order is personally reviewed by our experienced team to ensure everything is correct before dispatch. We offer delivery from as little as the next working day on selected products, so please refer to the dark blue Estimated Delivery box above for the expected delivery timeframe for this item.

We work with trusted manufacturers and specialist delivery partners to ensure your order arrives safely and on time. You'll receive tracking details once your order has been dispatched, and if we need to confirm any delivery details, one of our team will contact you directly to keep everything running smoothly.

Roof Tiles & Fittings:

We recommend ordering an additional 10% of roof tiles to allow for any breakages that may occur during delivery or handling. Roof tiles are naturally fragile, and having a few extra on site helps prevent delays and ensures your roofing project can be completed without interruption.

K-Rend GP Mortar ( MIX ) 25KG Bag

£7.58

Can I collect this product from a local branch?

Absolutely. Check availability at your nearest branch during checkout or contact us directly.

Do you offer bulk pricing or trade discounts?

Yes, we offer competitive rates for trade customers and bulk orders. Contact our team for a tailored quote.

What if the product arrives damaged?

Please notify us within 48 hours of delivery. We’ll arrange a prompt replacement or refund as needed.

How fast is the delivery time?

Most items are delivered within 2–5 working days, depending on stock and location. Some products may take longer times.

What is the Return Policy?

We accept most returns within 14 days of delivery, provided the items are unused, in their original packaging, and in resalable condition. Please contact our customer service team to arrange a return or discuss any concerns.